From 2c8e3de2f583889a7d83a96089ac31eb37db3914 Mon Sep 17 00:00:00 2001
From: Angad Chauhan <angad.chauhan@wdimails.com>
Date: Mon, 23 Jun 2025 18:55:08 +0530
Subject: [PATCH] CodeHub Branch Setup

---
 .gitignore                                    |    3 +
 index.html                                    |  679 +++++
 logs/combined.log                             |  206 ++
 logs/error.log                                |   84 +
 logs/exceptions.log                           |  262 ++
 package-lock.json                             | 2464 +++++++++++++++++
 package.json                                  |   32 +
 src/config/config.js                          |  121 +
 src/config/cors.js                            |   22 +
 src/config/logger.js                          |   51 +
 src/config/morgan.js                          |   44 +
 src/config/tokens.js                          |   10 +
 src/controller/chat.controller.js             |  479 ++++
 src/controller/index.js                       |    3 +
 src/index.js                                  |   88 +
 src/middlewares/auth.js                       |   45 +
 src/middlewares/error.js                      |   78 +
 src/middlewares/error.middleware.js           |   19 +
 src/middlewares/fileUpload.js                 |   95 +
 src/middlewares/rateLimiter.js                |   27 +
 src/middlewares/storage.js                    |   81 +
 src/middlewares/validate.js                   |   33 +
 src/middlewares/verifyJWTToken.js             |   61 +
 src/models/chat.model.js                      |   52 +
 src/models/chatMedia.model.js                 |   46 +
 src/models/chatMessage.model.js               |   73 +
 src/models/chatParticipantLink.model.js       |   79 +
 src/models/iam_principal.model.js             |  107 +
 src/models/index.js                           |   53 +
 src/routes/chat/admin.routes.js               |   45 +
 src/routes/chat/index.js                      |    7 +
 src/routes/chat/user.routes.js                |   60 +
 src/routes/index.js                           |    6 +
 src/services/chat.service.js                  |  298 ++
 src/services/iam_principal.service.js         |   19 +
 src/services/index.js                         |    4 +
 src/socket/index.js                           |   45 +
 src/utils/constant/chat.constant.js           |   10 +
 src/utils/constant/socket.constant.js         |   29 +
 src/utils/handler/ApiError.handler.js         |   41 +
 src/utils/handler/ApiResponse.handler.js      |   19 +
 src/utils/handler/Async.handler.js            |   11 +
 src/utils/handler/pick.handler.js             |   20 +
 src/utils/helper/aesCrypto.helper.js          |   22 +
 src/utils/helper/emailValidator.helper.js     |   32 +
 src/utils/helper/fileValidator.helper.js      |   12 +
 src/utils/helper/generateExcel.helper.js      |   85 +
 src/utils/helper/maskemail.helper.js          |   14 +
 src/utils/helper/notificationMsg.helper.js    |  495 ++++
 src/utils/helper/otpGenrator.helper.js        |   15 +
 src/utils/helper/passwordGenrator.js          |   19 +
 .../transactionNumberGenrator.helper.js       |   57 +
 .../uniqueNumberGeneratorInvestor.helper.js   |   30 +
 src/validation/addParticipant.validation.js   |   12 +
 src/validation/chat.validation.js             |   42 +
 src/validation/index.js                       |    4 +
 56 files changed, 6850 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 index.html
 create mode 100644 logs/combined.log
 create mode 100644 logs/error.log
 create mode 100644 logs/exceptions.log
 create mode 100644 package-lock.json
 create mode 100644 package.json
 create mode 100644 src/config/config.js
 create mode 100644 src/config/cors.js
 create mode 100644 src/config/logger.js
 create mode 100644 src/config/morgan.js
 create mode 100644 src/config/tokens.js
 create mode 100644 src/controller/chat.controller.js
 create mode 100644 src/controller/index.js
 create mode 100644 src/index.js
 create mode 100644 src/middlewares/auth.js
 create mode 100644 src/middlewares/error.js
 create mode 100644 src/middlewares/error.middleware.js
 create mode 100644 src/middlewares/fileUpload.js
 create mode 100644 src/middlewares/rateLimiter.js
 create mode 100644 src/middlewares/storage.js
 create mode 100644 src/middlewares/validate.js
 create mode 100644 src/middlewares/verifyJWTToken.js
 create mode 100644 src/models/chat.model.js
 create mode 100644 src/models/chatMedia.model.js
 create mode 100644 src/models/chatMessage.model.js
 create mode 100644 src/models/chatParticipantLink.model.js
 create mode 100644 src/models/iam_principal.model.js
 create mode 100644 src/models/index.js
 create mode 100644 src/routes/chat/admin.routes.js
 create mode 100644 src/routes/chat/index.js
 create mode 100644 src/routes/chat/user.routes.js
 create mode 100644 src/routes/index.js
 create mode 100644 src/services/chat.service.js
 create mode 100644 src/services/iam_principal.service.js
 create mode 100644 src/services/index.js
 create mode 100644 src/socket/index.js
 create mode 100644 src/utils/constant/chat.constant.js
 create mode 100644 src/utils/constant/socket.constant.js
 create mode 100644 src/utils/handler/ApiError.handler.js
 create mode 100644 src/utils/handler/ApiResponse.handler.js
 create mode 100644 src/utils/handler/Async.handler.js
 create mode 100644 src/utils/handler/pick.handler.js
 create mode 100644 src/utils/helper/aesCrypto.helper.js
 create mode 100644 src/utils/helper/emailValidator.helper.js
 create mode 100644 src/utils/helper/fileValidator.helper.js
 create mode 100644 src/utils/helper/generateExcel.helper.js
 create mode 100644 src/utils/helper/maskemail.helper.js
 create mode 100644 src/utils/helper/notificationMsg.helper.js
 create mode 100644 src/utils/helper/otpGenrator.helper.js
 create mode 100644 src/utils/helper/passwordGenrator.js
 create mode 100644 src/utils/helper/transactionNumberGenrator.helper.js
 create mode 100644 src/utils/helper/uniqueNumberGeneratorInvestor.helper.js
 create mode 100644 src/validation/addParticipant.validation.js
 create mode 100644 src/validation/chat.validation.js
 create mode 100644 src/validation/index.js

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b1e72aa
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+node_modules
+.env
+/public
\ No newline at end of file
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..df71578
--- /dev/null
+++ b/index.html
@@ -0,0 +1,679 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <title>Chat Controller Tester</title>
+  <style>
+    body {
+      font-family: Arial, sans-serif;
+      max-width: 1000px;
+      margin: 0 auto;
+      padding: 20px;
+    }
+
+    .form-section {
+      border: 1px solid #ddd;
+      border-radius: 5px;
+      padding: 15px;
+      margin-bottom: 20px;
+    }
+
+    .form-row {
+      margin-bottom: 10px;
+      display: flex;
+      align-items: center;
+    }
+
+    label {
+      width: 150px;
+      font-weight: bold;
+    }
+
+    input,
+    select {
+      padding: 8px;
+      border: 1px solid #ddd;
+      border-radius: 4px;
+      flex-grow: 1;
+    }
+
+    button {
+      padding: 10px 15px;
+      background-color: #4CAF50;
+      color: white;
+      border: none;
+      border-radius: 4px;
+      cursor: pointer;
+      margin-right: 10px;
+    }
+
+    #response {
+      margin-top: 20px;
+      padding: 15px;
+      border: 1px solid #ddd;
+      border-radius: 5px;
+      background-color: #f9f9f9;
+      white-space: pre-wrap;
+    }
+
+    .participant-item {
+      display: flex;
+      align-items: center;
+      margin-bottom: 5px;
+    }
+
+    .participant-item input {
+      flex-grow: 1;
+      margin-right: 10px;
+    }
+
+    .remove-participant {
+      color: red;
+      cursor: pointer;
+    }
+  </style>
+</head>
+
+<body>
+  <h1>Chat Controller Tester</h1>
+
+  <div class="form-section">
+    <h2>Create Chat</h2>
+
+    <div class="form-row">
+      <label for="create_user_id">Acting User ID:</label>
+      <input type="text" id="create_user_id" placeholder="User creating the chat" />
+    </div>
+
+    <div class="form-row">
+      <label for="is_group">Is Group:</label>
+      <select id="is_group">
+        <option value="false">One-to-One Chat</option>
+        <option value="true">Group Chat</option>
+      </select>
+    </div>
+
+    <div class="form-row" id="chat-name-row">
+      <label for="chat_name">Chat Name:</label>
+      <input type="text" id="chat_name" placeholder="Enter group name (required for groups)" />
+    </div>
+
+    <div class="form-row" id="group-type-row">
+      <label for="group_type">Group Type:</label>
+      <select id="group_type">
+        <option value="public">Public</option>
+        <option value="private">Private</option>
+      </select>
+    </div>
+
+    <div class="form-row" id="max-participants-row">
+      <label for="max_participants">Max Participants:</label>
+      <input type="number" id="max_participants" placeholder="Leave empty for no limit" />
+    </div>
+
+    <div class="form-row">
+      <label for="description">Description:</label>
+      <input type="text" id="description" placeholder="Optional description" />
+    </div>
+
+    <div class="form-row">
+      <label for="profile_photo">Profile Photo URL:</label>
+      <input type="text" id="profile_photo" placeholder="Optional image URL" />
+    </div>
+
+    <div class="form-row">
+      <label>Participants:</label>
+      <div style="flex-grow: 1;">
+        <div id="participants-container">
+          <div class="participant-item">
+            <input type="text" class="participant-id" placeholder="Enter user ID" />
+            <span class="remove-participant">✕</span>
+          </div>
+        </div>
+        <button type="button" id="add-participant">Add Participant</button>
+      </div>
+    </div>
+
+    <div class="form-row">
+      <button id="create-chat">Create Chat</button>
+      <button id="reset-form">Reset Form</button>
+    </div>
+  </div>
+
+  <div id="response"></div>
+
+  <h2>Add Participant to Group Chat</h2>
+
+  <div class="form-row">
+    <label for="add_user_id">Acting User ID:</label>
+    <input type="text" id="add_user_id" placeholder="User performing the action" />
+  </div>
+
+  <div class="form-row">
+    <label for="add_chat_id">Chat ID:</label>
+    <input type="text" id="add_chat_id" placeholder="Target group chat ID" />
+  </div>
+
+  <div class="form-row">
+    <label for="add_participant_id">New Participant ID:</label>
+    <input type="text" id="add_participant_id" placeholder="User ID to add" />
+  </div>
+
+  <div class="form-row">
+    <button id="add-participant-to-group">Add to Group</button>
+  </div>
+
+  <h2>Remove Participant from Group Chat</h2>
+
+  <div class="form-row">
+    <label for="remove_user_id">Acting User ID:</label>
+    <input type="text" id="remove_user_id" placeholder="User performing the action (admin)" />
+  </div>
+
+  <div class="form-row">
+    <label for="remove_chat_id">Chat ID:</label>
+    <input type="text" id="remove_chat_id" placeholder="Target group chat ID" />
+  </div>
+
+  <div class="form-row">
+    <label for="remove_participant_id">Participant ID:</label>
+    <input type="text" id="remove_participant_id" placeholder="User ID to remove" />
+  </div>
+
+  <div class="form-row">
+    <button id="remove-participant-from-group">Remove from Group</button>
+  </div>
+
+  <h2>Get Chat Participants</h2>
+  <div class="form-row">
+    <label for="get_chat_id">Chat ID:</label>
+    <input type="text" id="get_chat_id" placeholder="Enter chat ID to fetch participants" />
+  </div>
+  <div class="form-row">
+    <button id="get-chat-participants">Get Participants</button>
+  </div>
+
+  <h2>Accept/Reject Group Join Request (Private Group)</h2>
+  <div class="form-section">
+    <div class="form-row">
+      <label for="admin_user_id">Admin User ID:</label>
+      <input type="text" id="admin_user_id" placeholder="Admin user ID" />
+    </div>
+    <div class="form-row">
+      <label for="group_chat_id">Group Chat ID:</label>
+      <input type="text" id="group_chat_id" placeholder="Private group chat ID" />
+    </div>
+    <div class="form-row">
+      <label for="pending_participant_id">Participant ID:</label>
+      <input type="text" id="pending_participant_id" placeholder="User ID to accept/reject" />
+    </div>
+    <div class="form-row">
+      <button id="accept-join-request">Accept Join Request</button>
+      <button id="reject-join-request" style="background-color:#e74c3c;">Reject Join Request</button>
+    </div>
+  </div>
+
+  <h2>Get All Group Join Requests</h2>
+  <div class="form-section">
+    <div class="form-row">
+      <label for="request_user_id">User ID:</label>
+      <input type="text" id="request_user_id" placeholder="User ID to fetch group join requests" />
+    </div>
+    <div class="form-row">
+      <button id="get-all-group-requests">Get All Group Join Requests</button>
+    </div>
+  </div>
+  <h2>Get All Join Requests For Particular Group</h2>
+  <div class="form-section">
+    <div class="form-row">
+      <label for="group_requests_chat_id">Group Chat ID:</label>
+      <input type="text" id="group_requests_chat_id" placeholder="Group Chat ID" />
+    </div>
+    <div class="form-row">
+      <button id="get-group-join-requests">Get Join Requests</button>
+    </div>
+  </div>
+  <div class="form-section">
+    <h2>Live Chat Demo</h2>
+    <input type="text" id="chat-message" placeholder="Type your message..." style="width:80%;" />
+    <button id="send-message">Send</button>
+  </div>
+
+  <div class="form-section">
+    <h2>Test sendMessage API one to one </h2>
+    <div class="form-row">
+      <label for="send_user_id">User ID:</label>
+      <input type="text" id="send_user_id" placeholder="Sender user ID" />
+    </div>
+    <div class="form-row">
+      <label for="send_chat_id">Chat ID:</label>
+      <input type="text" id="send_chat_id" placeholder="Chat ID" />
+    </div>
+    <div class="form-row">
+      <label for="send_receiver_id">Receiver ID:</label>
+      <input type="text" id="send_receiver_id" placeholder="Receiver ID (optional for group)" />
+    </div>
+    <div class="form-row">
+      <label for="send_message_text">Message:</label>
+      <input type="text" id="send_message_text" placeholder="Type your message..." />
+    </div>
+    <div class="form-row">
+      <button id="send-message-api">Send via API</button>
+    </div>
+  </div>
+
+  <div class="form-row">
+    <label for="join_chat_id">Join Chat ID:</label>
+    <input type="text" id="join_chat_id" placeholder="Enter chat ID to join room" />
+    <button id="join-room-btn">Join Room</button>
+  </div>
+
+  <div id="chat-window"
+    style="height:200px;overflow-y:auto;border:1px solid #ccc;padding:10px;margin-bottom:10px;background:#fafafa">
+  </div>
+
+  <script src="https://cdn.socket.io/4.7.5/socket.io.min.js"></script>
+
+  <script>
+
+    document.getElementById("join-room-btn").addEventListener("click", function () {
+      const chatId = document.getElementById("join_chat_id").value.trim();
+      if (chatId) {
+        socket.emit("join-room", { chatId });
+        alert("Joined room " + chatId);
+      }
+    });
+    // Toggle group-specific fields
+    const isGroupSelect = document.getElementById("is_group");
+    const toggleGroupFields = () => {
+      const isGroup = isGroupSelect.value === "true";
+      document.getElementById("chat-name-row").style.display = isGroup ? "flex" : "none";
+      document.getElementById("group-type-row").style.display = isGroup ? "flex" : "none";
+      document.getElementById("max-participants-row").style.display = isGroup ? "flex" : "none";
+    };
+    isGroupSelect.addEventListener("change", toggleGroupFields);
+    toggleGroupFields(); // Initialize
+
+    // Participant management
+    document.getElementById("add-participant").addEventListener("click", () => {
+      const container = document.getElementById("participants-container");
+      const newItem = document.createElement("div");
+      newItem.className = "participant-item";
+      newItem.innerHTML = `
+        <input type="text" class="participant-id" placeholder="Enter user ID">
+        <span class="remove-participant">✕</span>
+      `;
+      container.appendChild(newItem);
+
+      newItem.querySelector(".remove-participant").addEventListener("click", () => {
+        if (document.querySelectorAll(".participant-item").length > 1) {
+          container.removeChild(newItem);
+        }
+      });
+    });
+
+    document.getElementById("reset-form").addEventListener("click", () => {
+      document.querySelectorAll("input").forEach((input) => (input.value = ""));
+      document.getElementById("is_group").value = "false";
+      document.getElementById("group_type").value = "public";
+
+      const participantsContainer = document.getElementById("participants-container");
+      participantsContainer.innerHTML = `
+        <div class="participant-item">
+          <input type="text" class="participant-id" placeholder="Enter user ID">
+          <span class="remove-participant">✕</span>
+        </div>
+      `;
+
+      toggleGroupFields();
+    });
+
+    document.getElementById("create-chat").addEventListener("click", async () => {
+      const userId = Number(document.getElementById("create_user_id").value.trim());
+      const isGroup = document.getElementById("is_group").value === "true";
+      const chatName = document.getElementById("chat_name").value;
+      const groupType = document.getElementById("group_type").value;
+      const maxParticipants = document.getElementById("max_participants").value;
+      const description = document.getElementById("description").value;
+      const profilePhoto = document.getElementById("profile_photo").value;
+
+      const participantInputs = document.querySelectorAll(".participant-id");
+      const participants = Array.from(participantInputs)
+        .map((input) => input.value.trim())
+        .filter((id) => id !== "")
+        .map(Number);
+
+      if (!userId) {
+        alert("Acting User ID is required");
+        return;
+      }
+
+      if (isGroup && !chatName) {
+        alert("Group chat requires a name");
+        return;
+      }
+
+      if (!isGroup && participants.length !== 1) {
+        alert("One-to-one chat requires exactly one participant");
+        return;
+      }
+
+      const requestBody = {
+        userId,
+        chat_name: isGroup ? chatName : null,
+        is_group: isGroup,
+        group_type: isGroup ? groupType : null,
+        max_participants: isGroup ? (maxParticipants || null) : null,
+        description: description || null,
+        profile_photo: profilePhoto || null,
+        participants,
+      };
+
+      try {
+        const response = await fetch("http://localhost:8000/api/chat/user/createNewChat", {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json"
+          },
+          body: JSON.stringify(requestBody),
+        });
+
+        const result = await response.json();
+        document.getElementById("response").textContent = JSON.stringify(result, null, 2);
+        if (!response.ok) console.error("Error:", result);
+      } catch (error) {
+        console.error("Error:", error);
+        document.getElementById("response").textContent = "Error: " + error.message;
+      }
+    });
+
+    document.getElementById("add-participant-to-group").addEventListener("click", async () => {
+      const userId = document.getElementById("add_user_id").value.trim();
+      const chatId = document.getElementById("add_chat_id").value.trim();
+      const newParticipantId = document.getElementById("add_participant_id").value.trim();
+
+      if (!userId || !chatId || !newParticipantId) {
+        alert("Please fill all fields (User ID, Chat ID, New Participant ID)");
+        return;
+      }
+
+      const requestBody = {
+        chatId,
+        newParticipantId,
+      };
+
+      try {
+        const response = await fetch(`http://localhost:8000/api/chat/user/addParticipant/${userId}`, {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json"
+          },
+          body: JSON.stringify(requestBody),
+        });
+
+        const result = await response.json();
+        document.getElementById("response").textContent = JSON.stringify(result, null, 2);
+        if (!response.ok) console.error("Error:", result);
+      } catch (error) {
+        console.error("Error:", error);
+        document.getElementById("response").textContent = "Error: " + error.message;
+      }
+    });
+
+    document.getElementById("remove-participant-from-group").addEventListener("click", async () => {
+      const userId = Number(document.getElementById("remove_user_id").value.trim());
+      const chatId = Number(document.getElementById("remove_chat_id").value.trim());
+      const participantId = Number(document.getElementById("remove_participant_id").value.trim());
+
+      if (!userId || !chatId || !participantId) {
+        alert("Please fill all fields (User ID, Chat ID, Participant ID)");
+        return;
+      }
+
+      const requestBody = {
+        chatId,
+        participantId,
+      };
+
+      try {
+        const response = await fetch(`http://localhost:8000/api/chat/user/removeParticipant/${userId}`, {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json"
+          },
+          body: JSON.stringify(requestBody),
+        });
+
+        const result = await response.json();
+        document.getElementById("response").textContent = JSON.stringify(result, null, 2);
+        if (!response.ok) console.error("Error:", result);
+      } catch (error) {
+        console.error("Error:", error);
+        document.getElementById("response").textContent = "Error: " + error.message;
+      }
+    });
+
+    document.getElementById("get-chat-participants").addEventListener("click", async () => {
+      const chatId = document.getElementById("get_chat_id").value.trim();
+
+      if (!chatId) {
+        alert("Please enter a Chat ID");
+        return;
+      }
+
+      try {
+        const response = await fetch(`http://localhost:8000/api/chat/user/getChatParticipants/${chatId}`, {
+          method: "GET"
+        });
+
+        const result = await response.json();
+        document.getElementById("response").textContent = JSON.stringify(result, null, 2);
+
+        if (!response.ok) {
+          console.error("Error:", result);
+        }
+      } catch (error) {
+        console.error("Error:", error);
+        document.getElementById("response").textContent = "Error: " + error.message;
+      }
+    });
+
+    // Accept Join Request
+    document.getElementById("accept-join-request").addEventListener("click", async () => {
+      const userId = document.getElementById("admin_user_id").value.trim();
+      const chatId = document.getElementById("group_chat_id").value.trim();
+      const participantId = document.getElementById("pending_participant_id").value.trim();
+
+      if (!userId || !chatId || !participantId) {
+        alert("Please fill all fields (Admin User ID, Group Chat ID, Participant ID)");
+        return;
+      }
+
+      const requestBody = {
+        chatId,
+        participantId,
+      };
+
+      try {
+        const response = await fetch(`http://localhost:8000/api/chat/admin/acceptGroupJoinRequest/${userId}`, {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json"
+          },
+          body: JSON.stringify(requestBody),
+        });
+
+        const result = await response.json();
+        document.getElementById("response").textContent = JSON.stringify(result, null, 2);
+        if (!response.ok) console.error("Error:", result);
+      } catch (error) {
+        console.error("Error:", error);
+        document.getElementById("response").textContent = "Error: " + error.message;
+      }
+    });
+
+    // Reject Join Request
+    document.getElementById("reject-join-request").addEventListener("click", async () => {
+      const userId = document.getElementById("admin_user_id").value.trim();
+      const chatId = document.getElementById("group_chat_id").value.trim();
+      const participantId = document.getElementById("pending_participant_id").value.trim();
+
+      if (!userId || !chatId || !participantId) {
+        alert("Please fill all fields (Admin User ID, Group Chat ID, Participant ID)");
+        return;
+      }
+
+      const requestBody = {
+        chatId,
+        participantId,
+      };
+
+      try {
+        const response = await fetch(`http://localhost:8000/api/chat/admin/rejectGroupJoinRequest/${userId}`, {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json"
+          },
+          body: JSON.stringify(requestBody),
+        });
+
+        const result = await response.json();
+        document.getElementById("response").textContent = JSON.stringify(result, null, 2);
+        if (!response.ok) console.error("Error:", result);
+      } catch (error) {
+        console.error("Error:", error);
+        document.getElementById("response").textContent = "Error: " + error.message;
+      }
+    });
+
+    // Get All Group Join Requests (no token)
+    document.getElementById("get-all-group-requests").addEventListener("click", async () => {
+      const userId = document.getElementById("request_user_id").value.trim();
+
+      if (!userId) {
+        alert("Please enter a User ID");
+        return;
+      }
+
+      try {
+        const response = await fetch(`http://localhost:8000/api/chat/user/get-all-chat-group-request/${userId}`, {
+          method: "GET"
+        });
+
+        const result = await response.json();
+        document.getElementById("response").textContent = JSON.stringify(result, null, 2);
+
+        if (!response.ok) {
+          console.error("Error:", result);
+        }
+      } catch (error) {
+        console.error("Error:", error);
+        document.getElementById("response").textContent = "Error: " + error.message;
+      }
+    });
+
+    document.getElementById("get-group-join-requests").addEventListener("click", async () => {
+      const chatId = document.getElementById("group_requests_chat_id").value.trim();
+
+      if (!chatId) {
+        alert("Please enter a Group Chat ID");
+        return;
+      }
+
+      try {
+        const response = await fetch(`http://localhost:8000/api/chat/admin/group/${chatId}`, {
+          method: "GET"
+        });
+
+        const result = await response.json();
+        document.getElementById("response").textContent = JSON.stringify(result, null, 2);
+
+        if (!response.ok) {
+          console.error("Error:", result);
+        }
+      } catch (error) {
+        console.error("Error:", error);
+        document.getElementById("response").textContent = "Error: " + error.message;
+      }
+    });
+    // ...existing code...
+
+    // Live Chat Demo with Socket.IO
+    const socket = io("http://localhost:3000");
+
+    // Listen for incoming messages
+    socket.on("chat-message", function (data) {
+      const chatWindow = document.getElementById("chat-window");
+      const div = document.createElement("div");
+      if (typeof data === "object" && data.message) {
+        div.textContent =
+          (data.sender_xid ? "User " + data.sender_xid + ": " : "") +
+          data.message +
+          (data.receiver_xid ? " (to User " + data.receiver_xid + ")" : "");
+      } else {
+        div.textContent = typeof data === "string" ? data : JSON.stringify(data);
+      }
+      chatWindow.appendChild(div);
+      chatWindow.scrollTop = chatWindow.scrollHeight;
+    });
+
+    // Send message
+    document.getElementById("send-message").addEventListener("click", function () {
+      const input = document.getElementById("chat-message");
+      const msg = input.value.trim();
+      if (msg) {
+        socket.emit("chat-message", msg);
+        input.value = "";
+      }
+    });
+
+    // Optionally, send message on Enter key
+    document.getElementById("chat-message").addEventListener("keydown", function (e) {
+      if (e.key === "Enter") {
+        document.getElementById("send-message").click();
+      }
+    });
+
+    // ANGAD 
+    document.getElementById("send-message-api").addEventListener("click", async function () {
+      const userId = document.getElementById("send_user_id").value.trim();
+      const chatId = document.getElementById("send_chat_id").value.trim();
+      const receiverId = document.getElementById("send_receiver_id").value.trim();
+      const message = document.getElementById("send_message_text").value.trim();
+
+      if (!userId || !chatId || !message) {
+        alert("User ID, Chat ID, and Message are required!");
+        return;
+      }
+
+      const body = {
+        userId: Number(userId),
+        chatId: Number(chatId),
+        message: message
+      };
+      if (receiverId) body.receiverId = Number(receiverId);
+
+      try {
+        const response = await fetch("http://localhost:8000/api/chat/user/send-message", {
+          method: "POST",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify(body)
+        });
+        const result = await response.json();
+        document.getElementById("response").textContent = JSON.stringify(result, null, 2);
+        if (!response.ok) console.error("Error:", result);
+      } catch (error) {
+        document.getElementById("response").textContent = "Error: " + error.message;
+      }
+    });
+
+
+    // ...existing code...
+  </script>
+  <!-- ...existing code...
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/logs/combined.log b/logs/combined.log
new file mode 100644
index 0000000..62ff53a
--- /dev/null
+++ b/logs/combined.log
@@ -0,0 +1,206 @@
+2025-06-23 12:24:06 [info]: Connection has been established successfully.
+2025-06-23 13:33:24 [info]: Connection has been established successfully.
+2025-06-23 13:34:16 [info]: Connection has been established successfully.
+2025-06-23 13:34:23 [info]: Connection has been established successfully.
+2025-06-23 13:34:44 [info]: Connection has been established successfully.
+2025-06-23 13:35:54 [info]: Connection has been established successfully.
+2025-06-23 13:36:24 [info]: Connection has been established successfully.
+2025-06-23 13:38:02 [info]: Connection has been established successfully.
+2025-06-23 13:38:03 [info]: Connection has been established successfully.
+2025-06-23 13:38:05 [info]: Connection has been established successfully.
+2025-06-23 15:17:53 [info]: Connection has been established successfully.
+2025-06-23 15:30:30 [info]: Connection has been established successfully.
+2025-06-23 15:30:53 [info]: Connection has been established successfully.
+2025-06-23 15:31:58 [info]: Connection has been established successfully.
+2025-06-23 15:34:35 [info]: Connection has been established successfully.
+2025-06-23 15:35:54 [info]: Connection has been established successfully.
+2025-06-23 15:36:02 [info]: Connection has been established successfully.
+2025-06-23 15:36:05 [info]: Connection has been established successfully.
+2025-06-23 15:36:08 [info]: Connection has been established successfully.
+2025-06-23 15:37:12 [info]: Connection has been established successfully.
+2025-06-23 15:37:15 [info]: Connection has been established successfully.
+2025-06-23 15:39:12 [info]: Connection has been established successfully.
+2025-06-23 15:39:16 [info]: Connection has been established successfully.
+2025-06-23 15:39:33 [info]: Connection has been established successfully.
+2025-06-23 15:39:40 [info]: Connection has been established successfully.
+2025-06-23 15:39:43 [info]: Connection has been established successfully.
+2025-06-23 15:58:39 [info]: Connection has been established successfully.
+2025-06-23 15:58:50 [info]: Connection has been established successfully.
+2025-06-23 16:05:36 [info]: Connection has been established successfully.
+2025-06-23 16:05:43 [info]: Connection has been established successfully.
+2025-06-23 16:06:51 [info]: Connection has been established successfully.
+2025-06-23 16:06:55 [info]: Connection has been established successfully.
+2025-06-23 16:07:00 [info]: Connection has been established successfully.
+2025-06-23 16:07:02 [info]: Connection has been established successfully.
+2025-06-23 16:07:07 [info]: Connection has been established successfully.
+2025-06-23 16:07:12 [info]: Connection has been established successfully.
+2025-06-23 16:08:01 [error]: 2025-06-23T10:38:01.003Z ::1 - POST /api/chat/user/send-message 400 - 5.805 ms - error: - - referrer: -
+2025-06-23 16:10:45 [error]: 2025-06-23T10:40:45.038Z ::1 - POST /api/chat/user/send-message 400 - 2.629 ms - error: - - referrer: -
+2025-06-23 16:11:24 [error]: 2025-06-23T10:41:24.256Z ::1 - POST /api/chat/user/send-message 400 - 0.777 ms - error: - - referrer: -
+2025-06-23 16:11:59 [info]: Connection has been established successfully.
+2025-06-23 16:12:02 [info]: Connection has been established successfully.
+2025-06-23 16:12:09 [info]: Connection has been established successfully.
+2025-06-23 16:12:12 [info]: Connection has been established successfully.
+2025-06-23 16:12:16 [error]: 2025-06-23T10:42:16.624Z ::1 - POST /api/chat/user/send-message 400 - 7.857 ms - error: - - referrer: -
+2025-06-23 16:12:23 [info]: Connection has been established successfully.
+2025-06-23 16:12:32 [error]: 2025-06-23T10:42:32.092Z ::1 - POST /api/chat/user/send-message 400 - 6.881 ms - error: - - referrer: -
+2025-06-23 16:13:35 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:469:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:13:35 [error]: 2025-06-23T10:43:35.800Z ::1 - POST /api/chat/user/send-message 500 - 178.663 ms - error: - - referrer: -
+2025-06-23 16:15:26 [info]: Connection has been established successfully.
+2025-06-23 16:15:40 [error]: ApiError is not defined
+ReferenceError: ApiError is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:446:13
+    at C:\Wdi Projects\SSA chat\src\utils\handler\Async.handler.js:10:18
+    at Layer.handle [as handle_request] (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\layer.js:95:5)
+    at next (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\route.js:149:13)
+    at Route.dispatch (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\route.js:119:3)
+    at Layer.handle [as handle_request] (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\layer.js:95:5)
+    at C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:284:15
+    at Function.process_params (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:346:12)
+    at next (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:280:10)
+    at Function.handle (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:175:3)
+2025-06-23 16:15:40 [error]: 2025-06-23T10:45:40.400Z ::1 - POST /api/chat/user/send-message 500 - 36.646 ms - error: - - referrer: -
+2025-06-23 16:15:49 [error]: ApiError is not defined
+ReferenceError: ApiError is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:446:13
+    at C:\Wdi Projects\SSA chat\src\utils\handler\Async.handler.js:10:18
+    at Layer.handle [as handle_request] (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\layer.js:95:5)
+    at next (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\route.js:149:13)
+    at Route.dispatch (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\route.js:119:3)
+    at Layer.handle [as handle_request] (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\layer.js:95:5)
+    at C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:284:15
+    at Function.process_params (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:346:12)
+    at next (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:280:10)
+    at Function.handle (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:175:3)
+2025-06-23 16:15:49 [error]: 2025-06-23T10:45:49.225Z ::1 - POST /api/chat/user/send-message 500 - 3.966 ms - error: - - referrer: -
+2025-06-23 16:16:53 [info]: Connection has been established successfully.
+2025-06-23 16:17:02 [info]: Connection has been established successfully.
+2025-06-23 16:17:07 [error]: userId, chatId, and message are required
+Error: userId, chatId, and message are required
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:447:19
+    at C:\Wdi Projects\SSA chat\src\utils\handler\Async.handler.js:10:18
+    at Layer.handle [as handle_request] (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\layer.js:95:5)
+    at next (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\route.js:149:13)
+    at Route.dispatch (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\route.js:119:3)
+    at Layer.handle [as handle_request] (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\layer.js:95:5)
+    at C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:284:15
+    at Function.process_params (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:346:12)
+    at next (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:280:10)
+    at Function.handle (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:175:3)
+2025-06-23 16:17:07 [error]: 2025-06-23T10:47:07.287Z ::1 - POST /api/chat/user/send-message 400 - 28.057 ms - error: - - referrer: -
+2025-06-23 16:17:40 [info]: Connection has been established successfully.
+2025-06-23 16:17:43 [info]: Connection has been established successfully.
+2025-06-23 16:17:50 [info]: Connection has been established successfully.
+2025-06-23 16:17:57 [info]: Connection has been established successfully.
+2025-06-23 16:18:05 [info]: Connection has been established successfully.
+2025-06-23 16:18:12 [info]: Connection has been established successfully.
+2025-06-23 16:18:18 [info]: Connection has been established successfully.
+2025-06-23 16:18:30 [info]: Connection has been established successfully.
+2025-06-23 16:18:34 [info]: Connection has been established successfully.
+2025-06-23 16:18:42 [info]: Connection has been established successfully.
+2025-06-23 16:18:48 [info]: Connection has been established successfully.
+2025-06-23 16:18:52 [info]: Connection has been established successfully.
+2025-06-23 16:19:01 [info]: Connection has been established successfully.
+2025-06-23 16:19:05 [info]: Connection has been established successfully.
+2025-06-23 16:19:13 [info]: Connection has been established successfully.
+2025-06-23 16:19:19 [info]: Connection has been established successfully.
+2025-06-23 16:19:26 [info]: Connection has been established successfully.
+2025-06-23 16:19:30 [info]: Connection has been established successfully.
+2025-06-23 16:19:34 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:471:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:19:34 [error]: 2025-06-23T10:49:34.487Z ::1 - POST /api/chat/user/send-message 500 - 64.727 ms - error: - - referrer: -
+2025-06-23 16:19:49 [info]: Connection has been established successfully.
+2025-06-23 16:19:53 [info]: Connection has been established successfully.
+2025-06-23 16:19:56 [info]: Connection has been established successfully.
+2025-06-23 16:20:00 [info]: Connection has been established successfully.
+2025-06-23 16:20:03 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:472:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:20:03 [error]: 2025-06-23T10:50:03.970Z ::1 - POST /api/chat/user/send-message 500 - 46.643 ms - error: - - referrer: -
+2025-06-23 16:20:14 [info]: Connection has been established successfully.
+2025-06-23 16:20:26 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:471:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:20:26 [error]: 2025-06-23T10:50:26.686Z ::1 - POST /api/chat/user/send-message 500 - 128.488 ms - error: - - referrer: -
+2025-06-23 16:20:43 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:471:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:20:43 [error]: 2025-06-23T10:50:43.447Z ::1 - POST /api/chat/user/send-message 500 - 194.941 ms - error: - - referrer: -
+2025-06-23 16:20:51 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:471:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:20:51 [error]: 2025-06-23T10:50:51.789Z ::1 - POST /api/chat/user/send-message 500 - 21.653 ms - error: - - referrer: -
+2025-06-23 16:21:09 [info]: Connection has been established successfully.
+2025-06-23 16:21:19 [info]: Connection has been established successfully.
+2025-06-23 16:21:23 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:471:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:21:23 [error]: 2025-06-23T10:51:23.705Z ::1 - POST /api/chat/user/send-message 500 - 51.833 ms - error: - - referrer: -
+2025-06-23 16:23:06 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:471:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:23:06 [error]: 2025-06-23T10:53:06.631Z ::1 - POST /api/chat/user/send-message 500 - 98.187 ms - error: - - referrer: -
+2025-06-23 16:24:22 [info]: Connection has been established successfully.
+2025-06-23 16:24:29 [info]: Connection has been established successfully.
+2025-06-23 16:24:32 [info]: Connection has been established successfully.
+2025-06-23 16:24:42 [info]: 2025-06-23T10:54:42.073Z ::1 - POST /api/chat/user/send-message 200 - 134.873 ms
+2025-06-23 16:27:55 [info]: Connection has been established successfully.
+2025-06-23 16:28:07 [info]: Connection has been established successfully.
+2025-06-23 16:28:35 [info]: Connection has been established successfully.
+2025-06-23 16:28:37 [info]: Connection has been established successfully.
+2025-06-23 16:28:44 [info]: Connection has been established successfully.
+2025-06-23 16:28:48 [info]: Connection has been established successfully.
+2025-06-23 16:28:52 [info]: Connection has been established successfully.
+2025-06-23 16:28:58 [info]: 2025-06-23T10:58:58.319Z ::1 - POST /api/chat/user/send-message 200 - 91.881 ms
+2025-06-23 16:29:25 [info]: Connection has been established successfully.
+2025-06-23 16:29:33 [info]: Connection has been established successfully.
+2025-06-23 16:35:28 [info]: 2025-06-23T11:05:28.290Z ::1 - OPTIONS /api/chat/user/send-message 204 - 1.182 ms
+2025-06-23 16:35:28 [info]: 2025-06-23T11:05:28.420Z ::1 - POST /api/chat/user/send-message 200 - 126.046 ms
+2025-06-23 16:45:14 [info]: 2025-06-23T11:15:14.461Z ::1 - OPTIONS /api/chat/user/send-message 204 - 0.329 ms
+2025-06-23 16:45:14 [info]: 2025-06-23T11:15:14.543Z ::1 - POST /api/chat/user/send-message 200 - 79.716 ms
+2025-06-23 16:48:37 [info]: 2025-06-23T11:18:37.803Z ::1 - OPTIONS /api/chat/user/send-message 204 - 0.166 ms
+2025-06-23 16:48:37 [info]: 2025-06-23T11:18:37.887Z ::1 - POST /api/chat/user/send-message 200 - 82.069 ms
+2025-06-23 16:48:50 [info]: 2025-06-23T11:18:50.251Z ::1 - OPTIONS /api/chat/user/send-message 204 - 0.149 ms
+2025-06-23 16:48:50 [info]: 2025-06-23T11:18:50.333Z ::1 - POST /api/chat/user/send-message 200 - 80.274 ms
+2025-06-23 16:49:21 [info]: 2025-06-23T11:19:21.907Z ::1 - OPTIONS /api/chat/user/send-message 204 - 0.150 ms
+2025-06-23 16:49:21 [info]: 2025-06-23T11:19:21.990Z ::1 - POST /api/chat/user/send-message 200 - 80.565 ms
+2025-06-23 16:51:24 [info]: 2025-06-23T11:21:24.129Z ::1 - OPTIONS /api/chat/user/send-message 204 - 0.164 ms
+2025-06-23 16:51:24 [info]: 2025-06-23T11:21:24.225Z ::1 - POST /api/chat/user/send-message 200 - 93.860 ms
+2025-06-23 16:51:38 [info]: 2025-06-23T11:21:38.023Z ::1 - OPTIONS /api/chat/user/send-message 204 - 0.244 ms
+2025-06-23 16:51:38 [info]: 2025-06-23T11:21:38.099Z ::1 - POST /api/chat/user/send-message 200 - 72.892 ms
+2025-06-23 16:57:13 [info]: 2025-06-23T11:27:13.044Z ::1 - OPTIONS /api/chat/user/send-message 204 - 0.203 ms
+2025-06-23 16:57:13 [info]: 2025-06-23T11:27:13.116Z ::1 - POST /api/chat/user/send-message 200 - 69.735 ms
+2025-06-23 17:03:53 [info]: Connection has been established successfully.
+2025-06-23 17:03:56 [info]: Connection has been established successfully.
+2025-06-23 17:04:45 [info]: 2025-06-23T11:34:45.292Z ::ffff:127.0.0.1 - OPTIONS /api/chat/user/send-message 204 - 1.125 ms
+2025-06-23 17:04:45 [info]: 2025-06-23T11:34:45.489Z ::ffff:127.0.0.1 - POST /api/chat/user/send-message 200 - 192.779 ms
+2025-06-23 17:05:14 [info]: 2025-06-23T11:35:14.824Z ::1 - OPTIONS /api/chat/user/send-message 204 - 0.163 ms
+2025-06-23 17:05:14 [info]: 2025-06-23T11:35:14.941Z ::1 - POST /api/chat/user/send-message 200 - 114.128 ms
+2025-06-23 17:05:31 [info]: 2025-06-23T11:35:31.334Z ::1 - OPTIONS /api/chat/user/createNewChat 204 - 0.159 ms
+2025-06-23 17:05:31 [info]: 2025-06-23T11:35:31.426Z ::1 - POST /api/chat/user/createNewChat 200 - 79.259 ms
+2025-06-23 17:08:05 [info]: Connection has been established successfully.
+2025-06-23 17:08:22 [info]: Connection has been established successfully.
+2025-06-23 17:15:13 [info]: 2025-06-23T11:45:13.647Z ::1 - OPTIONS /api/chat/user/send-message 204 - 1.051 ms
+2025-06-23 17:15:13 [info]: 2025-06-23T11:45:13.779Z ::1 - POST /api/chat/user/send-message 200 - 128.302 ms
+2025-06-23 17:21:03 [info]: Connection has been established successfully.
+2025-06-23 17:21:11 [info]: Connection has been established successfully.
+2025-06-23 17:21:14 [info]: Connection has been established successfully.
+2025-06-23 17:21:20 [info]: Connection has been established successfully.
+2025-06-23 17:21:28 [info]: 2025-06-23T11:51:28.579Z ::1 - POST /api/chat/user/send-message 200 - 75.033 ms
+2025-06-23 17:24:14 [info]: Connection has been established successfully.
+2025-06-23 17:24:25 [info]: Connection has been established successfully.
+2025-06-23 17:24:30 [info]: Connection has been established successfully.
+2025-06-23 17:24:55 [info]: 2025-06-23T11:54:55.734Z ::1 - OPTIONS /api/chat/user/send-message 204 - 1.127 ms
+2025-06-23 17:24:55 [info]: 2025-06-23T11:54:55.899Z ::1 - POST /api/chat/user/send-message 200 - 160.824 ms
+2025-06-23 17:25:36 [info]: Connection has been established successfully.
diff --git a/logs/error.log b/logs/error.log
new file mode 100644
index 0000000..ef7a948
--- /dev/null
+++ b/logs/error.log
@@ -0,0 +1,84 @@
+2025-06-23 16:08:01 [error]: 2025-06-23T10:38:01.003Z ::1 - POST /api/chat/user/send-message 400 - 5.805 ms - error: - - referrer: -
+2025-06-23 16:10:45 [error]: 2025-06-23T10:40:45.038Z ::1 - POST /api/chat/user/send-message 400 - 2.629 ms - error: - - referrer: -
+2025-06-23 16:11:24 [error]: 2025-06-23T10:41:24.256Z ::1 - POST /api/chat/user/send-message 400 - 0.777 ms - error: - - referrer: -
+2025-06-23 16:12:16 [error]: 2025-06-23T10:42:16.624Z ::1 - POST /api/chat/user/send-message 400 - 7.857 ms - error: - - referrer: -
+2025-06-23 16:12:32 [error]: 2025-06-23T10:42:32.092Z ::1 - POST /api/chat/user/send-message 400 - 6.881 ms - error: - - referrer: -
+2025-06-23 16:13:35 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:469:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:13:35 [error]: 2025-06-23T10:43:35.800Z ::1 - POST /api/chat/user/send-message 500 - 178.663 ms - error: - - referrer: -
+2025-06-23 16:15:40 [error]: ApiError is not defined
+ReferenceError: ApiError is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:446:13
+    at C:\Wdi Projects\SSA chat\src\utils\handler\Async.handler.js:10:18
+    at Layer.handle [as handle_request] (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\layer.js:95:5)
+    at next (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\route.js:149:13)
+    at Route.dispatch (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\route.js:119:3)
+    at Layer.handle [as handle_request] (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\layer.js:95:5)
+    at C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:284:15
+    at Function.process_params (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:346:12)
+    at next (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:280:10)
+    at Function.handle (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:175:3)
+2025-06-23 16:15:40 [error]: 2025-06-23T10:45:40.400Z ::1 - POST /api/chat/user/send-message 500 - 36.646 ms - error: - - referrer: -
+2025-06-23 16:15:49 [error]: ApiError is not defined
+ReferenceError: ApiError is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:446:13
+    at C:\Wdi Projects\SSA chat\src\utils\handler\Async.handler.js:10:18
+    at Layer.handle [as handle_request] (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\layer.js:95:5)
+    at next (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\route.js:149:13)
+    at Route.dispatch (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\route.js:119:3)
+    at Layer.handle [as handle_request] (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\layer.js:95:5)
+    at C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:284:15
+    at Function.process_params (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:346:12)
+    at next (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:280:10)
+    at Function.handle (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:175:3)
+2025-06-23 16:15:49 [error]: 2025-06-23T10:45:49.225Z ::1 - POST /api/chat/user/send-message 500 - 3.966 ms - error: - - referrer: -
+2025-06-23 16:17:07 [error]: userId, chatId, and message are required
+Error: userId, chatId, and message are required
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:447:19
+    at C:\Wdi Projects\SSA chat\src\utils\handler\Async.handler.js:10:18
+    at Layer.handle [as handle_request] (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\layer.js:95:5)
+    at next (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\route.js:149:13)
+    at Route.dispatch (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\route.js:119:3)
+    at Layer.handle [as handle_request] (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\layer.js:95:5)
+    at C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:284:15
+    at Function.process_params (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:346:12)
+    at next (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:280:10)
+    at Function.handle (C:\Wdi Projects\SSA chat\node_modules\express\lib\router\index.js:175:3)
+2025-06-23 16:17:07 [error]: 2025-06-23T10:47:07.287Z ::1 - POST /api/chat/user/send-message 400 - 28.057 ms - error: - - referrer: -
+2025-06-23 16:19:34 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:471:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:19:34 [error]: 2025-06-23T10:49:34.487Z ::1 - POST /api/chat/user/send-message 500 - 64.727 ms - error: - - referrer: -
+2025-06-23 16:20:03 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:472:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:20:03 [error]: 2025-06-23T10:50:03.970Z ::1 - POST /api/chat/user/send-message 500 - 46.643 ms - error: - - referrer: -
+2025-06-23 16:20:26 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:471:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:20:26 [error]: 2025-06-23T10:50:26.686Z ::1 - POST /api/chat/user/send-message 500 - 128.488 ms - error: - - referrer: -
+2025-06-23 16:20:43 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:471:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:20:43 [error]: 2025-06-23T10:50:43.447Z ::1 - POST /api/chat/user/send-message 500 - 194.941 ms - error: - - referrer: -
+2025-06-23 16:20:51 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:471:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:20:51 [error]: 2025-06-23T10:50:51.789Z ::1 - POST /api/chat/user/send-message 500 - 21.653 ms - error: - - referrer: -
+2025-06-23 16:21:23 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:471:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:21:23 [error]: 2025-06-23T10:51:23.705Z ::1 - POST /api/chat/user/send-message 500 - 51.833 ms - error: - - referrer: -
+2025-06-23 16:23:06 [error]: receiverId is not defined
+ReferenceError: receiverId is not defined
+    at C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:471:27
+    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
+2025-06-23 16:23:06 [error]: 2025-06-23T10:53:06.631Z ::1 - POST /api/chat/user/send-message 500 - 98.187 ms - error: - - referrer: -
diff --git a/logs/exceptions.log b/logs/exceptions.log
new file mode 100644
index 0000000..5ca8a33
--- /dev/null
+++ b/logs/exceptions.log
@@ -0,0 +1,262 @@
+2025-06-23 13:33:50 [error]: uncaughtException: get is not defined
+ReferenceError: get is not defined
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:420:5)
+    at Module._compile (node:internal/modules/cjs/loader:1562:14)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+ReferenceError: get is not defined
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:420:5)
+    at Module._compile (node:internal/modules/cjs/loader:1562:14)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+2025-06-23 13:33:54 [error]: uncaughtException: getMediaFi is not defined
+ReferenceError: getMediaFi is not defined
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:420:5)
+    at Module._compile (node:internal/modules/cjs/loader:1562:14)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+ReferenceError: getMediaFi is not defined
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:420:5)
+    at Module._compile (node:internal/modules/cjs/loader:1562:14)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+2025-06-23 13:33:57 [error]: uncaughtException: getMediaFiles is not defined
+ReferenceError: getMediaFiles is not defined
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:420:5)
+    at Module._compile (node:internal/modules/cjs/loader:1562:14)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+ReferenceError: getMediaFiles is not defined
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:420:5)
+    at Module._compile (node:internal/modules/cjs/loader:1562:14)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+2025-06-23 13:33:58 [error]: uncaughtException: getMediaFilesBy is not defined
+ReferenceError: getMediaFilesBy is not defined
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:420:5)
+    at Module._compile (node:internal/modules/cjs/loader:1562:14)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+ReferenceError: getMediaFilesBy is not defined
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:420:5)
+    at Module._compile (node:internal/modules/cjs/loader:1562:14)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+2025-06-23 13:34:02 [error]: uncaughtException: getMediaFilesById is not defined
+ReferenceError: getMediaFilesById is not defined
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:420:5)
+    at Module._compile (node:internal/modules/cjs/loader:1562:14)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+ReferenceError: getMediaFilesById is not defined
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:420:5)
+    at Module._compile (node:internal/modules/cjs/loader:1562:14)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+2025-06-23 16:07:09 [error]: uncaughtException: Unexpected token ')'
+C:\Wdi Projects\SSA chat\src\routes\chat\user.routes.js:48
+router.post('/send-message', chatController.);
+                                            ^
+
+SyntaxError: Unexpected token ')'
+    at wrapSafe (node:internal/modules/cjs/loader:1512:18)
+    at Module._compile (node:internal/modules/cjs/loader:1534:20)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\routes\chat\index.js:3:25)
+C:\Wdi Projects\SSA chat\src\routes\chat\user.routes.js:48
+router.post('/send-message', chatController.);
+                                            ^
+
+SyntaxError: Unexpected token ')'
+    at wrapSafe (node:internal/modules/cjs/loader:1512:18)
+    at Module._compile (node:internal/modules/cjs/loader:1534:20)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\routes\chat\index.js:3:25)
+2025-06-23 16:15:15 [error]: uncaughtException: Invalid or unexpected token
+C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:445
+            return res.status(400).json(new ApiResponse(400, null, "userId, chatId, and message are required"));\
+                                                                                                                ^
+
+SyntaxError: Invalid or unexpected token
+    at wrapSafe (node:internal/modules/cjs/loader:1512:18)
+    at Module._compile (node:internal/modules/cjs/loader:1534:20)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:445
+            return res.status(400).json(new ApiResponse(400, null, "userId, chatId, and message are required"));\
+                                                                                                                ^
+
+SyntaxError: Invalid or unexpected token
+    at wrapSafe (node:internal/modules/cjs/loader:1512:18)
+    at Module._compile (node:internal/modules/cjs/loader:1534:20)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+2025-06-23 16:16:41 [error]: uncaughtException: co is not defined
+ReferenceError: co is not defined
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:4:1)
+    at Module._compile (node:internal/modules/cjs/loader:1562:14)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+ReferenceError: co is not defined
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:4:1)
+    at Module._compile (node:internal/modules/cjs/loader:1562:14)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+2025-06-23 16:16:44 [error]: uncaughtException: Identifier 'module' has already been declared
+C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:5
+module.exports = {
+^
+
+SyntaxError: Identifier 'module' has already been declared
+    at wrapSafe (node:internal/modules/cjs/loader:1512:18)
+    at Module._compile (node:internal/modules/cjs/loader:1534:20)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:5
+module.exports = {
+^
+
+SyntaxError: Identifier 'module' has already been declared
+    at wrapSafe (node:internal/modules/cjs/loader:1512:18)
+    at Module._compile (node:internal/modules/cjs/loader:1534:20)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+2025-06-23 17:21:17 [error]: uncaughtException: Unexpected identifier 'io'
+C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:476
+        const io = req.app.get('io');
+              ^^
+
+SyntaxError: Unexpected identifier 'io'
+    at wrapSafe (node:internal/modules/cjs/loader:1512:18)
+    at Module._compile (node:internal/modules/cjs/loader:1534:20)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
+C:\Wdi Projects\SSA chat\src\controller\chat.controller.js:476
+        const io = req.app.get('io');
+              ^^
+
+SyntaxError: Unexpected identifier 'io'
+    at wrapSafe (node:internal/modules/cjs/loader:1512:18)
+    at Module._compile (node:internal/modules/cjs/loader:1534:20)
+    at Object..js (node:internal/modules/cjs/loader:1699:10)
+    at Module.load (node:internal/modules/cjs/loader:1313:32)
+    at Function._load (node:internal/modules/cjs/loader:1123:12)
+    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
+    at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
+    at Module.require (node:internal/modules/cjs/loader:1335:12)
+    at require (node:internal/modules/helpers:136:16)
+    at Object.<anonymous> (C:\Wdi Projects\SSA chat\src\controller\index.js:2:21)
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..0f3d0c9
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,2464 @@
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+    },
+    "node_modules/winston-transport/node_modules/readable-stream": {
+      "version": "3.6.2",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
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+      "dependencies": {
+        "inherits": "^2.0.3",
+        "string_decoder": "^1.1.1",
+        "util-deprecate": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
+    "node_modules/winston/node_modules/readable-stream": {
+      "version": "3.6.2",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
+      "integrity": "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA==",
+      "dependencies": {
+        "inherits": "^2.0.3",
+        "string_decoder": "^1.1.1",
+        "util-deprecate": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
+    "node_modules/wkx": {
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/wkx/-/wkx-0.5.0.tgz",
+      "integrity": "sha512-Xng/d4Ichh8uN4l0FToV/258EjMGU9MGcA0HV2d9B/ZpZB3lqQm7nkOdZdm5GhKtLLhAE7PiVQwN4eN+2YJJUg==",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
+    "node_modules/ws": {
+      "version": "8.17.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.17.1.tgz",
+      "integrity": "sha512-6XQFvXTkbfUOZOKKILFG1PDK2NDQs4azKQl26T0YS5CxqWLgXajbPZ+h4gZekJyRqFU8pvnbAbbs/3TgRPy+GQ==",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/xtend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+      "engines": {
+        "node": ">=0.4"
+      }
+    },
+    "node_modules/yup": {
+      "version": "1.6.1",
+      "resolved": "https://registry.npmjs.org/yup/-/yup-1.6.1.tgz",
+      "integrity": "sha512-JED8pB50qbA4FOkDol0bYF/p60qSEDQqBD0/qeIrUCG1KbPBIQ776fCUNb9ldbPcSTxA69g/47XTo4TqWiuXOA==",
+      "dependencies": {
+        "property-expr": "^2.0.5",
+        "tiny-case": "^1.0.3",
+        "toposort": "^2.0.2",
+        "type-fest": "^2.19.0"
+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..648285c
--- /dev/null
+++ b/package.json
@@ -0,0 +1,32 @@
+{
+  "name": "ssa-chat",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "nodemon src/index.js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "axios": "^1.8.4",
+    "compression": "^1.8.0",
+    "cors": "^2.8.5",
+    "dotenv": "^16.4.7",
+    "express": "^4.21.2",
+    "http-status": "^2.1.0",
+    "jsonwebtoken": "^9.0.2",
+    "morgan": "^1.10.0",
+    "multer": "^1.4.5-lts.2",
+    "mysql2": "^3.14.0",
+    "nodemon": "^3.1.9",
+    "pg": "^8.16.0",
+    "request-ip": "^3.3.0",
+    "sequelize": "^6.37.7",
+    "socket.io": "^4.8.1",
+    "winston": "^3.17.0",
+    "yup": "^1.6.1"
+  }
+}
diff --git a/src/config/config.js b/src/config/config.js
new file mode 100644
index 0000000..ee3c44b
--- /dev/null
+++ b/src/config/config.js
@@ -0,0 +1,121 @@
+const dotenv = require('dotenv');
+const path = require('path');
+const yup = require('yup');
+const crypto = require('crypto');
+
+dotenv.config({ path: path.join(__dirname, '../../.env') });
+
+const envVarsSchema = yup
+	.object()
+	.shape({
+		NODE_ENV: yup
+			.string()
+			.oneOf(['production', 'development', 'test'])
+			.required(),
+		PORT: yup.number().default(3000),
+		API_VERSION: yup.string().default('v1').notRequired('Api Version'),
+		// DataBase
+		DB_USERNAME: yup.string().required('DB Username is required'),
+		DB_PASSWORD: yup.string().required('DB Password is required'),
+		DB_DATABASE_NAME: yup.string().required('Database name is required'),
+		DB_HOSTNAME: yup
+			.string()
+			.default('127.0.0.1')
+			.required('DB Hostname is required'),
+		DB_PORT: yup.number().default(3306).required('DB Port is required'),
+	})
+
+try {
+	const envVars = envVarsSchema.validateSync(process.env, {
+		abortEarly: false,
+		stripUnknown: true,
+	});
+
+	module.exports = {
+		env: envVars?.NODE_ENV,
+		port: envVars?.PORT,
+		apiVersion: envVars.API_VERSION,
+		mysql: {
+			development: {
+				username: envVars.DB_USERNAME,
+				password: envVars.DB_PASSWORD,
+				database: envVars.DB_DATABASE_NAME,
+				host: envVars.DB_HOSTNAME,
+				port: envVars.DB_PORT,
+				dialect: 'postgres',
+				dialectOptions: {
+					bigNumberStrings: true,
+				},
+				logging: false,
+				define: {
+					freezeTableName: true,
+				},
+				pool: {
+					max: 10, // Maximum number of connection in pool
+					min: 0, // Minimum number of connection in pool
+					acquire: 30000, // Maximum time in ms to acquire a connection
+					idle: 10000, // Maximum time in ms a connection can be idle before being released
+				},
+			},
+			test: {
+				username: envVars.DB_USERNAME,
+				password: envVars.DB_PASSWORD,
+				database: envVars.DB_DATABASE_NAME,
+				host: envVars.DB_HOSTNAME,
+				port: envVars.DB_PORT,
+				dialect: 'mysql',
+				dialectOptions: {
+					bigNumberStrings: true,
+				},
+				logging: false,
+				define: {
+					freezeTableName: true,
+				},
+				pool: {
+					max: 10, // Maximum number of connection in pool
+					min: 0, // Minimum number of connection in pool
+					acquire: 30000, // Maximum time in ms to acquire a connection
+					idle: 10000, // Maximum time in ms a connection can be idle before being released
+				},
+			},
+			production: {
+				username: envVars.DB_USERNAME,
+				password: envVars.DB_PASSWORD,
+				database: envVars.DB_DATABASE_NAME,
+				host: envVars.DB_HOSTNAME,
+				port: envVars.DB_PORT,
+				dialect: 'mysql',
+				dialectOptions: {
+					bigNumberStrings: true,
+				},
+				logging: false,
+				define: {
+					freezeTableName: true,
+					socketPath: '/var/run/mysqld/mysqld.sock',
+				},
+				pool: {
+					max: 20, // Maximum number of connection in pool
+					min: 5, // Minimum number of connection in pool
+					acquire: 30000, // Maximum time in ms to acquire a connection
+					idle: 10000, // Maximum time in ms a connection can be idle before being released
+				},
+			},
+		},
+		jwt: {
+			secret: envVars?.JWT_SECRET,
+			accessExpirationMinutes: envVars?.JWT_ACCESS_EXPIRATION_MINUTES,
+			refreshExpirationDays: envVars?.JWT_REFRESH_EXPIRATION_DAYS,
+			resetPasswordExpirationMinutes:
+				envVars?.JWT_RESET_PASSWORD_EXPIRATION_MINUTES,
+			verifyEmailExpirationMinutes:
+				envVars?.JWT_VERIFY_EMAIL_EXPIRATION_MINUTES,
+		},
+		expiryTime: {
+			otp_in_Min: envVars.OTP_EXPIRE_IN_MIN || 2,
+		},
+	};
+} catch (error) {
+	throw new Error(
+		`Config validation error: ${Array.isArray(error?.errors) ? error.errors?.join(', ') : error}`
+	);
+}
diff --git a/src/config/cors.js b/src/config/cors.js
new file mode 100644
index 0000000..5797eee
--- /dev/null
+++ b/src/config/cors.js
@@ -0,0 +1,22 @@
+const config = require('./config');
+
+// CORS Configuration
+const corsOptions = (req, callback) => {
+	const allowedOrigins =
+		config.env !== 'development'
+			? [`http://${req.hostname}`, 'http://localhost:5173']
+			: ['http://localhost:5173']; // Replace with your frontend URL
+
+	const corsConfig = {
+		origin: allowedOrigins.includes(req.header('Origin'))
+			? req.header('Origin')
+			: false,
+		credentials: true, // Allow cookies and credentials
+	};
+	if (config.env === 'production') {
+		corsOptions.sameSite = 'Strict'; // Prevent cross-site request forgery
+	}
+	callback(null, corsConfig);
+};
+
+module.exports = corsOptions;
diff --git a/src/config/logger.js b/src/config/logger.js
new file mode 100644
index 0000000..0296dc5
--- /dev/null
+++ b/src/config/logger.js
@@ -0,0 +1,51 @@
+// src/config/logger.js
+const winston = require('winston');
+const path = require('path');
+const { format, transports } = winston;
+const { combine, timestamp, printf, colorize, errors } = format;
+
+// Create log format
+const logFormat = printf(({ level, message, timestamp, stack }) => {
+  return `${timestamp} [${level}]: ${message}${stack ? `\n${stack}` : ''}`;
+});
+
+// Create logger instance
+const logger = winston.createLogger({
+  level: process.env.NODE_ENV === 'development' ? 'debug' : 'info',
+  format: combine(
+    timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
+    errors({ stack: true }),
+    logFormat
+  ),
+  transports: [
+    // Console transport with colors
+    new transports.Console({
+      format: combine(
+        colorize(),
+        printf(info => `${info.timestamp} [${info.level}]: ${info.message}`)
+    ),
+	 }),
+    // File transports
+    new transports.File({ 
+      filename: 'logs/error.log', 
+      level: 'error',
+      maxsize: 5242880, // 5MB
+      maxFiles: 5
+    }),
+    new transports.File({ 
+      filename: 'logs/combined.log',
+      maxsize: 5242880,
+      maxFiles: 5
+    })
+  ],
+  exceptionHandlers: [
+    new transports.File({ filename: 'logs/exceptions.log' })
+  ]
+});
+
+// Handle uncaught promise rejections
+process.on('unhandledRejection', (reason) => {
+  throw reason;
+});
+
+module.exports = logger;
\ No newline at end of file
diff --git a/src/config/morgan.js b/src/config/morgan.js
new file mode 100644
index 0000000..abb6da8
--- /dev/null
+++ b/src/config/morgan.js
@@ -0,0 +1,44 @@
+const morgan = require('morgan');
+const requestIp = require('request-ip');
+const config = require('./config');
+const logger = require('./logger');
+
+// Custom tokens
+morgan.token('clientIp', (req) => {
+    const ip = requestIp.getClientIp(req);
+    // Anonymize IP in production for GDPR compliance
+    return config.env === 'production' && ip 
+        ? ip.replace(/\.\d+$/, '.XXX') 
+        : ip || 'unknown';
+});
+
+morgan.token('error', (req, res) => res.locals.error?.message || '');
+
+// Formats
+const getFormat = (isError = false) => {
+    const base = `${config.env === 'development' ? ':date[iso] ' : ''}:clientIp - :method :url :status`;
+    return isError 
+        ? `${base} - :response-time ms - error: :error - referrer: :referrer`
+        : `${base} - :response-time ms`;
+};
+
+// Success handler (2xx, 3xx responses)
+const successHandler = morgan(getFormat(), {
+    skip: (req, res) => res.statusCode >= 400,
+    stream: { 
+        write: (msg) => logger.info(msg.trim()) 
+    }
+});
+
+// Error handler (4xx, 5xx responses)
+const errorHandler = morgan(getFormat(true), {
+    skip: (req, res) => res.statusCode < 400,
+    stream: { 
+        write: (msg) => {
+            const status = msg.match(/:status (\d+)/)?.[1] || 500;
+            status >= 500 ? logger.error(msg.trim()) : logger.warn(msg.trim());
+        } 
+    }
+});
+
+module.exports = { successHandler, errorHandler };
\ No newline at end of file
diff --git a/src/config/tokens.js b/src/config/tokens.js
new file mode 100644
index 0000000..6dc3b44
--- /dev/null
+++ b/src/config/tokens.js
@@ -0,0 +1,10 @@
+const tokenTypes = {
+	ACCESS: 'access',
+	REFRESH: 'refresh',
+	RESET_PASSWORD: 'resetPassword',
+	VERIFY_EMAIL: 'verifyEmail',
+};
+
+module.exports = {
+	tokenTypes,
+};
diff --git a/src/controller/chat.controller.js b/src/controller/chat.controller.js
new file mode 100644
index 0000000..f683e57
--- /dev/null
+++ b/src/controller/chat.controller.js
@@ -0,0 +1,479 @@
+const { iamprincipalService, chatService } = require("../services");
+const ApiResponse = require("../utils/handler/ApiResponse.handler");
+const { AsyncHandler } = require("../utils/handler/Async.handler");
+const ApiError = require("../utils/handler/ApiError.handler");
+
+module.exports = {
+    createChat: AsyncHandler(async (req, res) => {
+        const { userId } = req.body;
+        const principal = await iamprincipalService.getById(userId);
+
+        if (!principal) {
+            return res.status(400).json(new ApiResponse(400, "Invalid user"));
+        }
+        const {
+            chat_name,
+            is_group,
+            group_type,
+            max_participants,
+            description,
+            profile_photo,
+            participants = []
+        } = req.body;
+
+        if (is_group && !chat_name) {
+            return res.status(400).json(new ApiResponse(400, null, "Group chat requires a name"));
+        }
+
+        let chat;
+        let result;
+
+        if (!is_group) {
+            // One-to-one chat
+            if (participants.length !== 1) {
+                return res.status(400).json(new ApiResponse(400, null,
+                    "One-to-one chat requires exactly one participant"));
+            }
+
+            const otherUserId = participants[0];
+
+            // Check if other user exists
+            const invalidParticipants = await chatService.validateParticipants([otherUserId]);
+            if (invalidParticipants.length > 0) {
+                return res.status(400).json(new ApiResponse(400, null,
+                    "Invalid participant user"));
+            }
+
+            // Check for existing chat (modified part)
+            const existingChat = await chatService.findOneToOneChat(userId, otherUserId);
+            if (existingChat) {
+                const otherUser = await iamprincipalService.findUser(otherUserId);
+                result = {
+                    chat: existingChat,
+                    otherUser: {
+                        id: otherUser.id,
+                        name: `${otherUser.full_name}`,
+                        profile_photo: otherUser.profile_photo
+                    },
+                    isNew: false
+                };
+                return res.status(200).json(new ApiResponse(200, result, "Chat already exists"));
+            }
+
+            // Create new chat if none exists
+            const chat = await chatService.createOneToOneChat(userId, otherUserId, profile_photo);
+            const otherUser = await iamprincipalService.findUser(otherUserId);
+            result = {
+                chat: chat,
+                otherUser: {
+                    id: otherUser.id,
+                    name: `${otherUser.full_name}`,
+                    profile_photo: otherUser.profile_photo
+                },
+                isNew: true
+            };
+        } else {
+            // Group chat logic
+            const allParticipants = [...new Set([userId, ...participants])];
+
+            // Validate all participants exist
+            const invalidParticipants = await chatService.validateParticipants(participants);
+            if (invalidParticipants.length > 0) {
+                return res.status(400).json(new ApiResponse(400, null,
+                    `Invalid participants: ${invalidParticipants.join(', ')}`));
+            }
+
+            const chat = await chatService.createGroupChat(
+                userId,
+                { chat_name, group_type, max_participants, description, profile_photo },
+                allParticipants
+            );
+
+            const participantDetails = await iamprincipalService.getParticipantsDetails(allParticipants);
+
+            result = {
+                chat: chat,
+                participants: participantDetails,
+                isNew: true
+            };
+        }
+
+        res
+            .status(200)
+            .json(new ApiResponse(200, result, 'Chat created successfully.'));
+    }),
+
+
+    addParticipant: AsyncHandler(async (req, res) => {
+        const userId = String(req.params.userId); // acting user
+        const { chatId, newParticipantId } = req.body;
+
+        if (!chatId || !newParticipantId) {
+            return res.status(400).json(new ApiResponse(400, null, "chatId and newParticipantId are required"));
+        }
+
+        const principal = await iamprincipalService.getById(userId);
+        if (!principal) {
+            return res.status(400).json(new ApiResponse(400, "Invalid user"));
+        }
+
+        // Validate the participant to be added exists
+        const newUser = await iamprincipalService.getById(newParticipantId);
+        if (!newUser) {
+            return res.status(400).json(new ApiResponse(400, null, "Invalid participant user"));
+        }
+
+        // Fetch the chat to validate it's a group and the user has permission
+        const chat = await chatService.getChatWithParticipants(chatId);
+        if (!chat) {
+            return res.status(404).json(new ApiResponse(404, null, "Chat not found"));
+        }
+
+        if (chat.participants.some(participant => String(participant.id) === String(newParticipantId))) {
+            return res.status(400).json(new ApiResponse(400, null, "Participant already in the chat"));
+        }
+
+        if (!chat.is_group) {
+            return res.status(400).json(new ApiResponse(400, null, "Cannot add members to a one-to-one chat"));
+        }
+
+        if (chat.max_participants && chat.participants.length >= chat.max_participants) {
+            return res.status(400).json(new ApiResponse(400, null, "Cannot add more participants to this group chat"));
+        }
+
+        if (chat.group_type === 'public') {
+            // Directly add participant to public group
+            const updatedChat = await chatService.addParticipantToGroup(chatId, newParticipantId, userId);
+            const participantDetails = await iamprincipalService.findUser(newParticipantId);
+
+            return res.status(200).json(new ApiResponse(200, {
+                chat: updatedChat,
+                addedParticipant: {
+                    id: participantDetails.id,
+                    name: participantDetails.user_name,
+                    profile_photo: participantDetails.profile_photo
+                }
+            }, "Participant added successfully."));
+        } else if (chat.group_type === 'private') {
+            // Create join request for private group
+            await chatService.createJoinRequest(chatId, newParticipantId);
+
+            return res.status(200).json(new ApiResponse(200, {
+                chatId,
+                requestedParticipant: {
+                    id: newUser.id,
+                    name: newUser.user_name,
+                    profile_photo: newUser.profile_photo
+                },
+                is_requested: true
+            }, "Join request sent. Awaiting admin approval."));
+        } else {
+            return res.status(400).json(new ApiResponse(400, null, "Unknown group type"));
+        }
+    }),
+
+    removeParticipant: AsyncHandler(async (req, res) => {
+        const userId = String(req.params.userId); // acting user
+        const { chatId, participantId } = req.body;
+
+        if (!chatId || !participantId) {
+            return res.status(400).json(new ApiResponse(400, null, "chatId and participantId are required"));
+        }
+
+        const principal = await iamprincipalService.getById(userId);
+        if (!principal) {
+            return res.status(400).json(new ApiResponse(400, "Invalid user"));
+        }
+
+        // Validate the participant to be added exists
+        const newUser = await iamprincipalService.getById(participantId);
+        if (!newUser) {
+            return res.status(400).json(new ApiResponse(400, null, "Invalid participant user"));
+        }
+
+        // Fetch the chat to validate it's a group and the user has permission
+        const chat = await chatService.getChatWithParticipants(chatId);
+        if (!chat) {
+            return res.status(404).json(new ApiResponse(404, null, "Chat not found"));
+        }
+
+        if (!chat.is_group) {
+            return res.status(400).json(new ApiResponse(400, null, "Cannot add members to a one-to-one chat"));
+        }
+        const isParticipantInChat = chat.participants.some(
+            participant => String(participant.id) === String(participantId)
+        );
+
+        if (!isParticipantInChat) {
+            return res.status(400).json(new ApiResponse(400, null, "Participant is not in the chat"));
+        }
+
+        // Optional: Verify userId has permission to add (e.g., is admin/creator)
+        if (chat.group_admin_id != userId) {
+            return res.status(403).json(new ApiResponse(403, null, "Only admins can remove participants"));
+        }
+
+        // Add participant
+        const updatedChat = await chatService.removeParticipantToGroup(chatId, participantId);
+
+        const participantDetails = await iamprincipalService.findUser(participantId);
+
+        res.status(200).json(new ApiResponse(200, {
+            chat: updatedChat,
+            removedParticipant: {
+                id: participantDetails.id,
+                name: participantDetails.user_name,
+                profile_photo: participantDetails.profile_photo
+            }
+        }, "Participant removed successfully."));
+    }),
+
+    getAllChatParticipants: AsyncHandler(async (req, res) => {
+        const { chatId } = req.params;
+
+        if (!chatId) {
+            return res.status(400).json(new ApiResponse(400, null, "chatId is required"));
+        }
+
+        const chat = await chatService.getChatWithParticipants(chatId);
+        if (!chat) {
+            return res.status(404).json(new ApiResponse(404, null, "Chat not found"));
+        }
+
+        const filteredParticipants = chat.participants.map(participant => ({
+            id: participant.id,
+            chat_participant_link: participant.chat_participant_link,
+            is_active: participant.is_active,
+            profile_photo: participant.profile_photo,
+            last_login_datetime: participant.last_login_datetime,
+            email_address: participant.email_address,
+            phone_number: participant.phone_number,
+            gender: participant.gender,
+            date_of_birth: participant.date_of_birth,
+            full_name: participant.full_name,
+            user_name: participant.user_name
+        }));
+
+        res.status(200).json(new ApiResponse(200, {
+            chat_id: chat.id,
+            chat_name: chat.chat_name,
+            is_group: chat.is_group,
+            participants: filteredParticipants
+        }, "Participants fetched successfully."));
+    }),
+
+    getAllRequestForGroup: AsyncHandler(async (req, res) => {
+        const userId = String(req.params.userId);
+        const principal = await iamprincipalService.getById(userId);
+
+        if (!principal) {
+            return res.status(400).json(new ApiResponse(400, "Invalid user"));
+        }
+
+        const chatsRequest = await chatService.getAllRequest(userId);
+
+        if (!chatsRequest || chatsRequest.length === 0) {
+            return res.status(404).json(new ApiResponse(404, null, "No request found"));
+        }
+
+        res.status(200).json(new ApiResponse(200, chatsRequest, "Chats request successfully."));
+    }),
+
+    shareFilesInChats: AsyncHandler(async (req, res) => {
+        const { userId, chatId } = req.body;
+
+        if (!userId || !chatId) {
+            return res.status(400).json(new ApiResponse(400, null, "userId and chatId are required"));
+        }
+
+        const principal = await iamprincipalService.getById(userId);
+
+        if (!principal) {
+            return res.status(400).json(new ApiResponse(400, "User not found"));
+        }
+
+        const files = req.files?.files || [];
+        if (!chatId || files.length === 0) {
+            return res.status(400).json(new ApiResponse(400, null, "chatId and at least one file are required"));
+        }
+
+        const fileNames = files.map(file => file.filename);
+
+        const chat = await chatService.getChatWithParticipants(chatId);
+
+        if (!chat) {
+            return res.status(404).json(new ApiResponse(404, null, "Chat not found"));
+        }
+        console.log(chat);
+        if (!chat.participants.some(participant => String(participant.id) === String(userId))) {
+            return res.status(403).json(new ApiResponse(403, null, "User not part of the chat"));
+        }
+
+        const media = await chatService.saveChatMedia(chatId, fileNames);
+
+        res.status(200).json(new ApiResponse(200, media, "Files shared successfully."));
+    }),
+
+    acceptGroupJoinRequest: AsyncHandler(async (req, res) => {
+        const userId = String(req.params.userId); // acting user (admin)
+        const { chatId, participantId } = req.body;
+
+        if (!chatId || !participantId) {
+            return res.status(400).json(new ApiResponse(400, null, "chatId and participantId are required"));
+        }
+
+        // Validate acting user
+        const principal = await iamprincipalService.getById(userId);
+        if (!principal) {
+            return res.status(400).json(new ApiResponse(400, "Invalid user"));
+        }
+
+        // Fetch chat
+        const chat = await chatService.getChatWithParticipants(chatId);
+        if (!chat) {
+            return res.status(404).json(new ApiResponse(404, null, "Chat not found"));
+        }
+
+        if (!chat.is_group || chat.group_type !== 'private') {
+            return res.status(400).json(new ApiResponse(400, null, "This action is only for private groups"));
+        }
+
+        if (chat.group_admin_id != userId) {
+            return res.status(403).json(new ApiResponse(403, null, "Only admins can accept requests"));
+        }
+
+        // Check if participant has a pending request
+        const hasRequest = await chatService.hasPendingJoinRequest(chatId, participantId);
+        if (!hasRequest) {
+            return res.status(400).json(new ApiResponse(400, null, "No pending join request for this participant"));
+        }
+
+        // Accept request
+        await chatService.acceptJoinRequest(chatId, participantId);
+
+        res.status(200).json(new ApiResponse(200, null, "Join request accepted"));
+    }),
+
+    rejectGroupJoinRequest: AsyncHandler(async (req, res) => {
+        const userId = String(req.params.userId); // acting user (admin)
+        const { chatId, participantId } = req.body;
+
+        if (!chatId || !participantId) {
+            return res.status(400).json(new ApiResponse(400, null, "chatId and participantId are required"));
+        }
+
+        // Validate acting user
+        const principal = await iamprincipalService.getById(userId);
+        if (!principal) {
+            return res.status(400).json(new ApiResponse(400, "Invalid user"));
+        }
+
+        // Fetch chat
+        const chat = await chatService.getChatWithParticipants(chatId);
+        if (!chat) {
+            return res.status(404).json(new ApiResponse(404, null, "Chat not found"));
+        }
+
+        if (!chat.is_group || chat.group_type !== 'private') {
+            return res.status(400).json(new ApiResponse(400, null, "This action is only for private groups"));
+        }
+
+        if (chat.group_admin_id != userId) {
+            return res.status(403).json(new ApiResponse(403, null, "Only admins can reject requests"));
+        }
+
+        // Check if participant has a pending request
+        const hasRequest = await chatService.hasPendingJoinRequest(chatId, participantId);
+        if (!hasRequest) {
+            return res.status(400).json(new ApiResponse(400, null, "No pending join request for this participant"));
+        }
+
+        // Reject request
+        await chatService.rejectJoinRequest(chatId, participantId);
+
+        res.status(200).json(new ApiResponse(200, null, "Join request rejected"));
+    }),
+
+
+    getAllRequestsForGroupAdmin: AsyncHandler(async (req, res) => {
+        const { chatId } = req.params;
+
+        if (!chatId) {
+            return res.status(400).json(new ApiResponse(400, null, "chatId is required"));
+        }
+
+        // Fetch the chat to ensure it exists and is a group
+        const chat = await chatService.getChatWithParticipants(chatId);
+        if (!chat) {
+            return res.status(404).json(new ApiResponse(404, null, "Chat not found"));
+        }
+        if (!chat.is_group) {
+            return res.status(400).json(new ApiResponse(400, null, "Not a group chat"));
+        }
+
+        // Get all pending join requests for this group
+        const requests = await chatService.getAllJoinRequestsForGroup(chatId);
+
+        res.status(200).json(new ApiResponse(200, requests, "Join requests fetched successfully."));
+    }),
+
+    getMediaFilesByChatId: AsyncHandler(async (req, res) => {
+        const { chatId } = req.params;
+
+        if (!chatId) {
+            return res.status(400).json(new ApiResponse(400, null, "chatId is required"));
+        }
+
+        const chat = await chatService.getChatWithParticipants(chatId);
+        if (!chat) {
+            return res.status(404).json(new ApiResponse(404, null, "Chat not found"));
+        }
+
+        // Get media files associated with the chat
+        const mediaFiles = await chatService.getMediaFilesByChatId(chatId);
+
+        if (!mediaFiles || mediaFiles.length === 0) {
+            return res.status(404).json(new ApiResponse(404, null, "No media files found for this chat"));
+        }
+
+        res.status(200).json(new ApiResponse(200, mediaFiles, "Media files fetched successfully."));
+    }),
+
+    sendMessage: AsyncHandler(async (req, res) => {
+        const { userId, chatId, message, receiverId } = req.body;
+        
+        if (!userId || !chatId || !message) {
+            throw new ApiError(400, 'userId, chatId, and message are required');
+        }
+
+        const principal = await iamprincipalService.getById(userId);
+
+        if (!principal) {
+             throw new ApiError(400, 'User not found');
+        }
+
+        const chat = await chatService.getChatWithParticipants(chatId);
+
+        if (!chat) {
+             throw new ApiError(400, 'Chat not found');
+        }
+
+        if (!chat.participants.some(participant => String(participant.id) === String(userId))) {
+             throw new ApiError(400, 'User not part of the chat');
+        }
+
+        const savedMessage = await chatService.saveMessage({
+            chat_xid: chatId,
+            sender_xid: userId,
+            receiver_xid: receiverId || null,
+            message: message,
+            message_type: "text"
+        });
+        
+        const io = req.app.get('io');
+        io.to(chatId).emit('chat-message', savedMessage.dataValues);
+
+        res.status(200).json(new ApiResponse(200, savedMessage, "Message sent successfully."));
+    }),
+
+}
\ No newline at end of file
diff --git a/src/controller/index.js b/src/controller/index.js
new file mode 100644
index 0000000..1adbdde
--- /dev/null
+++ b/src/controller/index.js
@@ -0,0 +1,3 @@
+module.exports = {
+    chatController: require("./chat.controller")
+} 
\ No newline at end of file
diff --git a/src/index.js b/src/index.js
new file mode 100644
index 0000000..c624e42
--- /dev/null
+++ b/src/index.js
@@ -0,0 +1,88 @@
+const express = require("express");
+const cors = require("cors");
+const { createServer } = require("node:http");
+const { Server } = require("socket.io");
+const { errorConverter, errorHandler } = require('./middlewares/error.js');
+const verifyJWTToken = require("./middlewares/verifyJWTToken.js");
+const app = express();
+const config = require("./config/config.js");
+const morgan = require("./config/morgan");
+const compression = require("compression");
+
+if (config.env !== "test") {
+  app.use(morgan.successHandler);
+  app.use(morgan.errorHandler);
+}
+// const IP = '192.168.50.127'; // Replace with your local IP address
+
+// gzip compression
+app.use(compression());
+
+// socket io
+const server = createServer(app);
+
+const io = new Server(server, {
+  pingTimeout: 60000,
+  cors: {
+    origin: "*",
+    credentials: true,
+  },
+});
+app.set("io", io);
+
+var corOptions = {
+  origin: "*",
+};
+
+//middleware
+app.use(cors(corOptions));
+app.use(express.json());
+app.use(express.urlencoded({ extended: true }));
+
+// make images access public by ther correct path
+app.use("/public", express.static("public"));
+ 
+app.get("/", (req, res) => {
+  res.json({ message: "hello from api" });
+});
+
+// app.use(verifyJWTToken); // verify jwt token in socket
+
+// router
+const router = require("./routes");
+const db = require("./models/index.js");
+const { initializeSocketIO } = require("./socket/index.js");
+const ApiError = require("./utils/handler/ApiError.handler.js");
+
+// api route
+app.use("/api", router);
+
+//port
+const PORT = process.env.PORT || 8000;
+// send back a 404 error for any unknown api request
+app.use((req, res, next) => {
+  next(new ApiError(404, "Not found"));
+});
+
+// convert error to ApiError, if needed
+app.use(errorConverter);
+
+// handle error
+app.use(errorHandler);
+
+//server
+initializeSocketIO(io);
+db.sequelize
+  .sync({ force: false })
+  .then(() => {
+    console.log("Yes re-sync done!");
+    server.listen(PORT, () => {
+      // server.listen(PORT, IP, () => {
+      console.log(`Server is running on port ${PORT}`);
+      // console.log(`Server running at http://${IP}:${PORT}`);
+    });
+  })
+  .catch((err) => {
+    console.log("Error : ", err.message);
+    // process.exit(1);
+  });
diff --git a/src/middlewares/auth.js b/src/middlewares/auth.js
new file mode 100644
index 0000000..32be948
--- /dev/null
+++ b/src/middlewares/auth.js
@@ -0,0 +1,45 @@
+const jwt = require('jsonwebtoken');
+const httpStatus = require('http-status');
+const { roleRights } = require('../config/roles'); // Replace with your actual JWT secret configuration
+const ApiError = require('../utils/handler/ApiError.handler');
+const config = require('../config/config');
+
+const verifyCallback = async (req, resolve, reject, requiredRights) => {
+	const token = req.header('x-auth-token') || req.cookies?.accessToken;
+	if (!token) {
+		return reject(new ApiError(httpStatus.UNAUTHORIZED, 'Please authenticate'));
+	}
+
+	try {
+		const decoded = jwt.verify(token, config.jwt.secret);
+		req.user = decoded;
+
+		if (requiredRights.length) {
+			const userRights = roleRights.get(req.user.role);
+			const hasRequiredRights = requiredRights.every((requiredRight) =>
+				userRights.includes(requiredRight)
+			);
+			if (!hasRequiredRights && req.params.userId !== req.user.id) {
+				return reject(new ApiError(httpStatus.FORBIDDEN, 'Forbidden'));
+			}
+		}
+
+		resolve();
+	} catch (error) {
+		return reject(
+			new ApiError(httpStatus.FORBIDDEN, 'Please authenticate', error)
+		);
+	}
+};
+
+const auth =
+	(...requiredRights) =>
+	async (req, res, next) => {
+		return new Promise((resolve, reject) => {
+			verifyCallback(req, resolve, reject, requiredRights);
+		})
+			.then(() => next())
+			.catch((err) => next(err));
+	};
+
+module.exports = auth;
diff --git a/src/middlewares/error.js b/src/middlewares/error.js
new file mode 100644
index 0000000..6690ea7
--- /dev/null
+++ b/src/middlewares/error.js
@@ -0,0 +1,78 @@
+const {
+	UniqueConstraintError,
+	BaseError,
+	ValidationError,
+} = require('sequelize');
+const ApiError = require('../utils/handler/ApiError.handler');
+const config = require('../config/config');
+const httpStatus = require('http-status');
+const logger = require('../config/logger');
+const multer = require('multer');
+
+const errorConverter = (err, req, res, next) => {
+	let error = err;
+
+	if (error instanceof multer.MulterError) {
+		// Handle Multer errors
+		error = new ApiError(
+			httpStatus.BAD_REQUEST,
+			error.message,
+			error,
+			true,
+			err.stack
+		);
+	} else if (
+		error instanceof ValidationError ||
+		error instanceof UniqueConstraintError
+	) {
+		// Handle Sequelize validation and unique constraint errors
+		const messages = error.errors.map((e) => e.message);
+		error = new ApiError(
+			httpStatus.BAD_REQUEST,
+			messages.join(', '),
+			messages,
+			true,
+			err.stack
+		);
+	} else if (!(error instanceof ApiError)) {
+		// Handle other errors
+		const statusCode =
+			error.statusCode || error instanceof BaseError
+				? httpStatus.BAD_REQUEST
+				: httpStatus.INTERNAL_SERVER_ERROR;
+		const message = error.message || httpStatus[statusCode];
+		error = new ApiError(statusCode, message, error, false, err.stack);
+	}
+
+	next(error);
+};
+
+const errorHandler = (err, req, res, next) => {
+    let { statusCode, message, errors } = err;
+
+    if (config.env === 'production' && !err.isOperational) {
+        statusCode = httpStatus.INTERNAL_SERVER_ERROR;
+        message = httpStatus[httpStatus.INTERNAL_SERVER_ERROR];
+        errors = [];
+    }
+
+    res.locals.errorMessage = message;
+
+    const response = {
+        code: statusCode,
+        message,
+        errors,
+        stack: config.env === 'development' ? err.stack : undefined
+    };
+
+    if (config.env === 'development') {
+        logger.error(err);
+    }
+
+    res.status(statusCode).json(response);
+};
+
+module.exports = {
+	errorConverter,
+	errorHandler,
+};
diff --git a/src/middlewares/error.middleware.js b/src/middlewares/error.middleware.js
new file mode 100644
index 0000000..96d2d98
--- /dev/null
+++ b/src/middlewares/error.middleware.js
@@ -0,0 +1,19 @@
+// errorMiddleware.js
+
+const errorHandler = (err, req, res, next) => {
+  const statusCode = err.statusCode || 500;
+  const message = err.message || "Internal Server Error";
+  const errors = err.errors || [];
+  const stack = err.stack;
+
+  res.status(statusCode).json({
+    error: {
+      statusCode,
+      message,
+      errors,
+      stack,
+    },
+  });
+};
+
+module.exports = { errorHandler };
diff --git a/src/middlewares/fileUpload.js b/src/middlewares/fileUpload.js
new file mode 100644
index 0000000..551a8b1
--- /dev/null
+++ b/src/middlewares/fileUpload.js
@@ -0,0 +1,95 @@
+const multer = require("multer");
+const fs = require("fs");
+const path = require("path");
+
+function generateFormattedDate() {
+  const now = new Date();
+  return `${now.getDate().toString().padStart(2, "0")}-${(now.getMonth() + 1)
+    .toString()
+    .padStart(2, "0")}-${now.getFullYear()}`;
+}
+
+
+function generateFormattedDateTime() {
+  const now = new Date();
+  const date = `${now.getDate().toString().padStart(2, "0")}-${(now.getMonth() + 1)
+    .toString()
+    .padStart(2, "0")}-${now.getFullYear()}`;
+  const time = `${now.getHours().toString().padStart(2, "0")}:${now.getMinutes()
+    .toString()
+    .padStart(2, "0")}:${now.getSeconds().toString().padStart(2, "0")}`;
+  return `${date} ${time}`;
+}
+
+function generateFormattedDateTimeWithTimestamp() {
+  const now = new Date();
+  const date = `${now.getDate().toString().padStart(2, "0")}-${(now.getMonth() + 1)
+    .toString()
+    .padStart(2, "0")}-${now.getFullYear()}`;
+  const time = `${now.getHours().toString().padStart(2, "0")}:${now.getMinutes()
+    .toString()
+    .padStart(2, "0")}:${now.getSeconds().toString().padStart(2, "0")}`;
+  const unixTimestamp = Math.floor(now.getTime() / 1000); // Get Unix timestamp
+  // return {
+  //   formattedDateTime: `${date} ${time}`, // "DD-MM-YYYY HH:MM:SS"
+  //   timestamp: unixTimestamp               // Unix timestamp
+  // };
+  return unixTimestamp;
+}
+
+const _createMulterOrginalFileStorage = (filename) => {
+  // console.log(filename);
+  return multer.diskStorage({
+    // Set the destination directory for uploaded files
+    destination: function (req, file, cb) {
+      // Check if the 'public' directory exists, and create it if it doesn't
+      if (!fs.existsSync("public")) {
+        try {
+          fs.mkdirSync("public");
+        } catch (err) {
+          return cb(err);
+        }
+      }
+
+      // Check if the specified directory exists inside 'public', and create it if it doesn't
+      if (!fs.existsSync(`public/${filename}`)) {
+        try {
+          fs.mkdirSync(`public/${filename}`);
+        } catch (err) {
+          return cb(err);
+        }
+      }
+
+      // Call the callback with the path to the destination directory
+      cb(null, `public/${filename}`);
+    },
+
+    // Set the filename for uploaded files
+    filename: function (req, file, cb) {
+      // console.log(file);
+      const formattedDate = generateFormattedDateTimeWithTimestamp();
+
+      // Use the original filename, but append the current timestamp and file extension
+      const transformedFilename = file.originalname
+        .trim() // Trim whitespace
+        .toLowerCase() // Convert to lowercase
+        .replace(/[^a-z\d.]+/g, "_") // Replace non-alphanumeric characters with underscores
+        .replace(/_+/g, "_") // Replace consecutive underscores with a single underscore
+        .replace(/\.[^.]+$/, "") // Get everything before the first dot
+        .replace(/\./g, "_") // Remove Dot
+        .replace(/^_|_$/g, ""); // Remove leading and trailing underscores
+
+      cb(
+        null,
+        transformedFilename +
+        "_" +
+        formattedDate +
+        path.extname(file.originalname)
+      );
+    },
+  });
+};
+
+module.exports = (foldername) => {
+  return _createMulterOrginalFileStorage(foldername);
+};
diff --git a/src/middlewares/rateLimiter.js b/src/middlewares/rateLimiter.js
new file mode 100644
index 0000000..9cfc06e
--- /dev/null
+++ b/src/middlewares/rateLimiter.js
@@ -0,0 +1,27 @@
+const { default: rateLimit } = require('express-rate-limit');
+const logger = require('../config/logger');
+const ApiError = require('../utils/handler/ApiError.handler');
+
+const authLimiter = rateLimit({
+	windowMs: 15 * 60 * 1000,
+	max: 100,
+	skipSuccessfulRequests: true,
+	standardHeaders: true,
+	legacyHeaders: false,
+	keyGenerator: (req) => {
+		return req.clientIp || req.ip; // Using IP address from requestIp.mw() instead of req.ip
+	},
+	handler: (req, res, next, options) => {
+		logger.warn(`Too many requests hit from this IP: ${req.clientIp}`);
+
+		// Throwing an ApiError with appropriate status code and message
+		throw new ApiError(
+			options.statusCode || 429, // 429 for "Too Many Requests" is a common status code
+			`Too many requests. You are only allowed ${options.max} requests per ${options.windowMs / 60000} minutes`
+		);
+	},
+});
+
+module.exports = {
+	authLimiter,
+};
diff --git a/src/middlewares/storage.js b/src/middlewares/storage.js
new file mode 100644
index 0000000..f8ad84e
--- /dev/null
+++ b/src/middlewares/storage.js
@@ -0,0 +1,81 @@
+const multer = require('multer');
+const fs = require('fs');
+const path = require('path');
+const ApiError = require('../utils/handler/ApiError.handler');
+const maxFileSize = 10 * 1024 * 1024; // 10 MB (in bytes)
+const allowedFileTypes = [
+	'image/jpeg',
+	'image/png',
+	'image/gif',
+	'application/pdf',
+	'application/msword',
+	'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+	'video/mp4',
+	'video/x-msvideo',
+	'video/x-matroska',
+	'video/webm',
+	'video/ogg',
+	'video/quicktime',
+];
+
+// Define the storage engine function with parameters
+const uploader = (folderName) =>
+	multer.diskStorage({
+		destination: function (req, file, cb) {
+			// Check if the 'public' directory exists, and create it if it doesn't
+			if (!fs.existsSync('public')) {
+				try {
+					fs.mkdirSync('public');
+				} catch (err) {
+					return cb(err);
+				}
+			}
+			if (!fs.existsSync(`public/${folderName}`)) {
+				try {
+					fs.mkdirSync(`public/${folderName}`);
+				} catch (err) {
+					return cb(err);
+				}
+			}
+			cb(null, `public/${folderName}`);
+		},
+		filename: function (req, file, cb) {
+			const transformedFilename = file.originalname
+				.trim() // Trim whitespace
+				.toLowerCase() // Convert to lowercase
+				.replace(/[^a-z\d.]+/g, '_') // Replace non-alphanumeric characters with underscores
+				.replace(/_+/g, '_') // Replace consecutive underscores with a single underscore
+				.replace(/\.[^.]+$/, '') // Get everything before the first dot
+				.replace(/\./g, '_') // Remove Dot
+				.replace(/^_|_$/g, '');
+
+			cb(null, transformedFilename + path.extname(file.originalname));
+		},
+	});
+
+// Define the file filter function with parameters
+const fileFilter = (allowedTypes = allowedFileTypes) =>
+	function (req, file, cb) {
+		if (allowedTypes.includes(file.mimetype)) {
+			cb(null, true); // Allow the file
+		} else {
+			cb(new ApiError(400, 'File type not allowed')); // Reject the file
+		}
+	};
+
+// Set up the multer storage with parameters and file filter
+const storage = (folderName, allowedTypes, options = {}) =>
+	multer({
+		storage: uploader(folderName || 'asset'),
+		limits: {
+			fileSize: options.fileSize || maxFileSize,
+		},
+		fileFilter: fileFilter(allowedTypes),
+		...options, // Merge additional options
+	});
+
+// Example usage:
+// const upload = storage("document", allowedFileTypes, { fileSize: 5 * 1024 * 1024, preservePath: true });
+// You can then use `upload` as middleware in your routes.
+
+module.exports = storage;
diff --git a/src/middlewares/validate.js b/src/middlewares/validate.js
new file mode 100644
index 0000000..f92f0e7
--- /dev/null
+++ b/src/middlewares/validate.js
@@ -0,0 +1,33 @@
+const httpStatus = require('http-status');
+const ApiError = require('../utils/handler/ApiError.handler');
+const pick = require('../utils/handler/pick.handler');
+
+const validate = (schema) => (req, res, next) => {
+	const validSchema = pick(schema, [
+		'params',
+		'query',
+		'body',
+		'file',
+		'files',
+	]);
+	const object = pick(req, Object.keys(validSchema));
+
+	const promises = Object.keys(validSchema).map((key) =>
+		validSchema[key].validate(object[key], { abortEarly: false })
+	);
+
+	Promise.all(promises)
+		.then((validatedValues) => {
+			validatedValues.forEach((value, index) => {
+				const key = Object.keys(validSchema)[index];
+				req[key] = value;
+			});
+			next();
+		})
+		.catch((err) => {
+			const errorMessage = err.inner.map((detail) => detail.message).join(', ');
+			next(new ApiError(httpStatus.BAD_REQUEST, errorMessage));
+		});
+};
+
+module.exports = validate;
diff --git a/src/middlewares/verifyJWTToken.js b/src/middlewares/verifyJWTToken.js
new file mode 100644
index 0000000..af6d999
--- /dev/null
+++ b/src/middlewares/verifyJWTToken.js
@@ -0,0 +1,61 @@
+const jwt = require("jsonwebtoken");
+const { IamPrincipal } = require("../models");
+require("dotenv").config();
+const db = require('../models');
+const { Op } = require("sequelize");
+
+// Middleware to verify the token
+const verifyToken = async (req, res, next) => {
+    // Get token from the 'Authorization' header (format: 'Bearer <token>')
+    const authHeader = req.headers['authorization'];
+
+    if (!authHeader) {
+        return res.status(403).json({ message: 'No token provided' });
+    }
+
+    // Split the token from the 'Bearer' scheme
+    const token = authHeader.split(' ')[1];
+
+    if (!token) {
+        return res.status(403).json({ message: 'Token is missing' });
+    }
+
+    // // Verify the token
+    // jwt.verify(token, SECRET_KEY, (err, decoded) => {
+    //     if (err) {
+    //         return res.status(401).json({ message: 'Invalid token' });
+    //     }
+
+    //     // Save the decoded user info to the request object
+    //     req.user = decoded;
+    //     next();  // Proceed to the next middleware or controller
+    // });
+
+    // Decode the token without verifying the signature
+    decoded = jwt.decode(token);
+    if (!decoded || !decoded.exp) {
+        return res.status(400).json({ message: 'Invalid token' });
+    }
+    const currentTimestamp = Math.floor(Date.now() / 1000); // Current time in seconds
+    if (currentTimestamp > decoded.exp) {
+        return res.status(401).json({ message: 'Token has expired' });
+    }
+
+    // Check if im_principal_id exists in the table
+    const checkUser = await db.IamPrincipal.findOne({
+        where: {
+            id: decoded.sub,  // Check that the id matches decoded.sub
+            active: '1',      // Ensure the user is active (assuming '1' means active)
+            deleted_at: { [Op.eq]: null }  // Ensure delete_at is null (i.e., not deleted)
+        }
+    });
+    if (!checkUser) {
+        return res.status(401).json({ message: 'Invalid token' });
+    }
+
+    // Save the decoded user info to the request object
+    req.token = decoded;
+    next();  // Proceed to the next middleware or controller
+};
+
+module.exports = verifyToken;  // Export the middleware
diff --git a/src/models/chat.model.js b/src/models/chat.model.js
new file mode 100644
index 0000000..d87aa1c
--- /dev/null
+++ b/src/models/chat.model.js
@@ -0,0 +1,52 @@
+const { Model, DataTypes } = require('sequelize');
+
+module.exports = (sequelize) => {
+    class chat extends Model {
+        static associate(models) {
+            // Many-to-many relationship with iam_principal through chat_participant_link
+            this.belongsToMany(models.iam_principal, {
+                through: models.chat_participant_link,
+                foreignKey: 'chat_xid',
+                otherKey: 'principal_xid',
+                as: 'participants'
+            });
+
+            // Direct hasMany relationship with the link table
+            this.hasMany(models.chat_participant_link, {
+                foreignKey: 'chat_xid',
+                as: 'participantLinks'
+            });
+        }
+    }
+    chat.init(
+        {
+            id: {
+                type: DataTypes.BIGINT,
+                allowNull: false,
+                primaryKey: true,
+                autoIncrement: true
+            },
+            chat_name: { type: DataTypes.STRING(255), allowNull: true },
+            is_group: { type: DataTypes.BOOLEAN, allowNull: true },
+            group_type: { type: DataTypes.STRING, allowNull: true },
+            group_admin_id: { type: DataTypes.INTEGER, allowNull: true },
+            max_participants: { type: DataTypes.INTEGER, allowNull: true },
+            description: { type: DataTypes.TEXT, allowNull: true },
+            profile_photo: { type: DataTypes.STRING, allowNull: true },
+            is_active: {
+                type: DataTypes.BOOLEAN,
+                allowNull: true,
+                defaultValue: true,
+            },
+            created_by: { type: DataTypes.INTEGER, allowNull: true },
+            updated_by: { type: DataTypes.INTEGER, allowNull: true },
+        },
+        {
+            sequelize,
+            tableName: 'chat',
+            timestamps: true,
+            paranoid: true,
+        }
+    );
+    return chat;
+};
\ No newline at end of file
diff --git a/src/models/chatMedia.model.js b/src/models/chatMedia.model.js
new file mode 100644
index 0000000..297d564
--- /dev/null
+++ b/src/models/chatMedia.model.js
@@ -0,0 +1,46 @@
+const { Model, DataTypes } = require('sequelize');
+
+module.exports = (sequelize) => {
+    class chatMedia extends Model {
+        static associate(models) {
+            this.belongsTo(models.chat, {
+                foreignKey: "chat_xid",
+                as: "media",
+                onDelete: "CASCADE",
+            });
+        }
+    }
+    chatMedia.init(
+        {
+            id: {
+                type: DataTypes.INTEGER,
+                primaryKey: true,
+                autoIncrement: true,
+            },
+            chat_xid: { type: DataTypes.INTEGER, allowNull: false, },
+            image_file_name: {
+                type: DataTypes.STRING,
+                allowNull: true,
+            },
+            image_path: {
+                type: DataTypes.STRING,
+                allowNull: true,
+            },
+            image_size: {
+                type: DataTypes.STRING,
+                allowNull: true,
+            },
+            is_active: {
+                type: DataTypes.BOOLEAN,
+            },
+            delivery_status: { type: DataTypes.ENUM('sent', 'delivered', 'read'), defaultValue: 'sent' },
+        },
+        {
+            sequelize,
+            tableName: 'chatMedia',
+            timestamps: true,
+            paranoid: true,
+        }
+    );
+    return chatMedia;
+};
diff --git a/src/models/chatMessage.model.js b/src/models/chatMessage.model.js
new file mode 100644
index 0000000..c546c78
--- /dev/null
+++ b/src/models/chatMessage.model.js
@@ -0,0 +1,73 @@
+const { Model, DataTypes } = require('sequelize');
+
+module.exports = (sequelize) => {
+    class chatMessage extends Model {
+        static associate(models) {
+            // Define the association to chat
+            this.belongsTo(models.chat, {
+                foreignKey: "chat_xid",
+                as: "chat",
+                onDelete: "CASCADE",
+            });
+
+            // Define the association to iam_principal
+            this.belongsTo(models.iam_principal, {
+                foreignKey: "sender_xid",
+                as: "sender",
+                onDelete: "CASCADE",
+            });
+
+            this.belongsTo(models.iam_principal, {
+                foreignKey: "receiver_xid",
+                as: "receiver",
+                onDelete: "CASCADE",
+            });
+
+        }
+    }
+    chatMessage.init(
+        {
+            id: {
+                type: DataTypes.INTEGER,
+                primaryKey: true,
+                autoIncrement: true,
+            },
+            chat_xid: {
+                type: DataTypes.BIGINT,
+                allowNull: false,
+                references: {
+                    model: 'chat',
+                    key: 'id'
+                }
+            },
+            sender_xid: {
+                type: DataTypes.BIGINT,
+                allowNull: false,
+                references: {
+                    model: 'iam_principal',
+                    key: 'id'
+                }
+            },
+            receiver_xid: {
+                type: DataTypes.BIGINT,
+                allowNull: true,
+                references: {
+                    model: 'iam_principal',
+                    key: 'id'
+                }
+            },
+            message: { type: DataTypes.STRING, allowNull: true },
+            message_type: { type: DataTypes.STRING, allowNull: true, defaultValue: 'text' },
+            delivery_status: { type: DataTypes.ENUM('sent', 'delivered', 'read'), defaultValue: 'sent' },
+            is_read: { type: DataTypes.BOOLEAN, allowNull: true },
+            is_active: { type: DataTypes.BOOLEAN, defaultValue: true },
+        },
+        {
+            sequelize,
+            tableName: 'chatMessage',
+            timestamps: true,
+            paranoid: true,
+        }
+    );
+    return chatMessage;
+};
diff --git a/src/models/chatParticipantLink.model.js b/src/models/chatParticipantLink.model.js
new file mode 100644
index 0000000..0704d1c
--- /dev/null
+++ b/src/models/chatParticipantLink.model.js
@@ -0,0 +1,79 @@
+const { Model, DataTypes } = require('sequelize');
+
+module.exports = (sequelize) => {
+    class chat_participant_link extends Model {
+        static associate(models) {
+            // Belongs to chat
+            this.belongsTo(models.chat, {
+                foreignKey: 'chat_xid',
+                as: 'chat'
+            });
+
+            // Belongs to iam_principal
+            this.belongsTo(models.iam_principal, {
+                foreignKey: 'principal_xid',
+                as: 'participant'
+            });
+        }
+    }
+
+    chat_participant_link.init(
+        {
+            id: {
+                type: DataTypes.BIGINT,
+                primaryKey: true,
+                autoIncrement: true,
+            },
+            chat_xid: {
+                type: DataTypes.BIGINT,
+                allowNull: false,
+            },
+            principal_xid: {
+                type: DataTypes.BIGINT,
+                allowNull: false,
+            },
+            role: {
+                type: DataTypes.STRING(50),
+                allowNull: true,
+                comment: 'e.g., "admin", "member", etc.'
+            },
+            joined_at: {
+                type: DataTypes.DATE,
+                allowNull: false,
+                defaultValue: DataTypes.NOW
+            },
+            left_at: {
+                type: DataTypes.DATE,
+                allowNull: true
+            },
+            is_active: {
+                type: DataTypes.BOOLEAN,
+                allowNull: false,
+                defaultValue: true
+            },
+            is_requested:{
+                type: DataTypes.BOOLEAN,
+                allowNull: false,
+                defaultValue: false,
+                comment: 'Indicates if the participant has requested to join the chat'
+            },
+            added_by: {
+                type: DataTypes.INTEGER,
+                allowNull: true
+            },
+            removed_by: {
+                type: DataTypes.INTEGER,
+                allowNull: true
+            }
+        },
+        {
+            sequelize,
+            tableName: 'chat_participant_link',
+            timestamps: true,
+            paranoid: true,
+            underscored: true
+        }
+    );
+
+    return chat_participant_link;
+};
\ No newline at end of file
diff --git a/src/models/iam_principal.model.js b/src/models/iam_principal.model.js
new file mode 100644
index 0000000..42204b4
--- /dev/null
+++ b/src/models/iam_principal.model.js
@@ -0,0 +1,107 @@
+const { Model, DataTypes } = require('sequelize');
+
+module.exports = (sequelize) => {
+  class iam_principal extends Model {
+    static associate(models) {
+        this.belongsToMany(models.chat, {
+            through: models.chat_participant_link,
+            foreignKey: 'principal_xid',
+            otherKey: 'chat_xid',
+            as: 'chats'
+        });
+        
+        // Direct hasMany relationship with the link table
+        this.hasMany(models.chat_participant_link, {
+            foreignKey: 'principal_xid',
+            as: 'chatParticipations'
+        });
+    }
+  }
+
+  iam_principal.init(
+    {
+      id: {
+        type: DataTypes.BIGINT,
+        allowNull: false,
+        primaryKey: true,
+        autoIncrement: true
+      },
+      principal_type_xid: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+      },
+      principal_source_xid: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+      },
+      google_id: { type: DataTypes.STRING, allowNull: true },
+      apple_id: { type: DataTypes.STRING, allowNull: true },
+      facebook_id: { type: DataTypes.STRING, allowNull: true },
+      microsoft_id: { type: DataTypes.STRING, allowNull: true },
+      user_name: { type: DataTypes.STRING, allowNull: true },
+      password_hash: { type: DataTypes.STRING, allowNull: true },
+      pin: { type: DataTypes.STRING(4), allowNull: true },
+      full_name: { type: DataTypes.STRING, allowNull: true },
+      gender: { type: DataTypes.STRING, allowNull: true },
+      date_of_birth: { type: DataTypes.DATEONLY, allowNull: true },
+      phone_number: { type: DataTypes.STRING(15), allowNull: true },
+      other_phone_number: { type: DataTypes.STRING(15), allowNull: true },
+      email_address: { type: DataTypes.STRING(50), allowNull: true },
+      address_line1: { type: DataTypes.STRING(255), allowNull: true },
+      address_line2: { type: DataTypes.STRING(255), allowNull: true },
+      lat: { type: DataTypes.STRING(100), allowNull: true },
+      long: { type: DataTypes.STRING(100), allowNull: true },
+      city_xid: { type: DataTypes.BIGINT, allowNull: true },
+      state_xid: { type: DataTypes.BIGINT, allowNull: true },
+      country_xid: { type: DataTypes.BIGINT, allowNull: true },
+      post_code: { type: DataTypes.STRING(10), allowNull: true },
+      last_login_datetime: { type: DataTypes.DATE, allowNull: true },
+      profile_photo: { type: DataTypes.STRING, allowNull: true },
+      banner_photo: { type: DataTypes.STRING, allowNull: true },
+      referral_code: { type: DataTypes.STRING, allowNull: true },
+      description: { type: DataTypes.STRING, allowNull: true },
+      about: { type: DataTypes.STRING, allowNull: true },
+      position: { type: DataTypes.STRING, allowNull: true },
+      training_scores: { type: DataTypes.STRING, allowNull: true },
+      height: { type: DataTypes.STRING, allowNull: true },
+      weight: { type: DataTypes.STRING, allowNull: true },
+      batting_average: { type: DataTypes.STRING, allowNull: true },
+      is_active: {
+        type: DataTypes.ENUM('1', '0'),
+        defaultValue: '1',
+        comment: '1=Active, 0=InActive',
+      },
+      group_notification: {
+        type: DataTypes.BOOLEAN,
+        defaultValue: true,
+        comment: '1=Active, 0=InActive',
+      },
+      community_notification: {
+        type: DataTypes.BOOLEAN,
+        defaultValue: true,
+        comment: '1=Active, 0=InActive',
+      },
+      new_follower_notification: {
+        type: DataTypes.BOOLEAN,
+        defaultValue: true,
+        comment: '1=Active, 0=InActive',
+      },
+      direct_message_notification: {
+        type: DataTypes.BOOLEAN,
+        defaultValue: true,
+        comment: '1=Active, 0=InActive',
+      },
+      created_by: { type: DataTypes.INTEGER, allowNull: true },
+      modified_by: { type: DataTypes.INTEGER, allowNull: true },
+    },
+    {
+      sequelize,
+      tableName: 'iam_principal',
+      timestamps: true,
+      paranoid: true,
+      underscored: true,
+    }
+  );
+
+  return iam_principal;
+};
\ No newline at end of file
diff --git a/src/models/index.js b/src/models/index.js
new file mode 100644
index 0000000..3ac6e65
--- /dev/null
+++ b/src/models/index.js
@@ -0,0 +1,53 @@
+'use strict';
+
+const { Sequelize } = require('sequelize');
+const config = require('../config/config');
+const logger = require('../config/logger');
+
+// Initialize Sequelize instance
+const sequelize = new Sequelize(
+    config.mysql[config.env].database,
+    config.mysql[config.env].username,
+    config.mysql[config.env].password,
+    config.mysql[config.env]
+);
+
+// Test database connection
+sequelize
+    .authenticate()
+    .then(() => logger.info('Connection has been established successfully.'))
+    .catch((error) => logger.error('Unable to connect to the database: ', error));
+
+// Load models
+const db = {};
+
+db.iam_principal = require('./iam_principal.model')(sequelize);
+db.chat = require('./chat.model')(sequelize);
+db.chat_participant_link = require('./chatParticipantLink.model')(sequelize);
+db.chatMessage = require('./chatMessage.model')(sequelize);
+db.chatMedia = require('./chatMedia.model')(sequelize);
+
+
+// Handle model associations
+
+(async () => {
+    for (const modelName of Object.keys(db)) {
+        if (db[modelName].associate) {
+            await db[modelName].associate(db);
+        }
+    }
+})();
+
+// Initialize plugins after models are set up to avoid circular dependencies
+// const Transaction = require('./plugins/Transaction');
+// const Pagination = require('./plugins/Pagination');
+// const BulkUpsert = require('./plugins/BulkUpsert');
+
+// db.transaction = new Transaction(sequelize);
+// db.bulkUpsert = new BulkUpsert(sequelize);
+// db.pagination = Pagination;
+
+db.sequelize = sequelize;
+db.Sequelize = Sequelize;
+
+module.exports = db;
diff --git a/src/routes/chat/admin.routes.js b/src/routes/chat/admin.routes.js
new file mode 100644
index 0000000..cf4a908
--- /dev/null
+++ b/src/routes/chat/admin.routes.js
@@ -0,0 +1,45 @@
+const router = require('express').Router();
+
+const { chatController } = require('../../controller');
+const fileUpload = require('../../middlewares/fileUpload');
+const multer = require('multer');
+const maxFileSize = 2 * 1024 * 1024; // 10 MB (in bytes)
+const allowedFileTypes = ["image/jpeg", "image/png", "image/gif"];
+
+const Store = multer({
+  storage: fileUpload("images"),
+  limits: { fileSize: maxFileSize },
+  fileFilter: function (req, file, cb) {
+    const allowedTypes = allowedFileTypes;
+    if (allowedTypes.includes(file.mimetype)) {
+      cb(null, true); // Allow the file
+    } else {
+      cb(new Error("File type not allowed")); // Reject the file
+    }
+  },
+});
+
+const profileUpload = Store.fields([{ name: "chat_images", maxCount: 1 }]);
+
+/**
+ * Created By: Pradyumn Dwivedi
+ * Created At: 02 May 2024
+ * Use: Create chat route
+ */
+router.post('/createNewChat', (req, res)=> {
+    res.send('Chat endpoint');
+});
+router.get('/getAllChats', (req, res)=> {
+    res.send('Chat endpoint');
+});
+router.get('/getAllChatsNotificationCount', (req, res)=> {
+    res.send('Chat endpoint');
+});
+router.post('/acceptGroupJoinRequest/:userId', chatController.acceptGroupJoinRequest);
+router.post('/rejectGroupJoinRequest/:userId', chatController.rejectGroupJoinRequest);
+router.get('/group/:chatId', chatController.getAllRequestsForGroupAdmin);
+    
+//export chat route
+module.exports = router;
+
+
diff --git a/src/routes/chat/index.js b/src/routes/chat/index.js
new file mode 100644
index 0000000..109be06
--- /dev/null
+++ b/src/routes/chat/index.js
@@ -0,0 +1,7 @@
+const chatRouter = require('express').Router();
+
+chatRouter.use('/user', require('./user.routes'));
+chatRouter.use('/admin', require('./admin.routes'));
+
+module.exports = chatRouter;
+         
\ No newline at end of file
diff --git a/src/routes/chat/user.routes.js b/src/routes/chat/user.routes.js
new file mode 100644
index 0000000..fcd2839
--- /dev/null
+++ b/src/routes/chat/user.routes.js
@@ -0,0 +1,60 @@
+const router = require('express').Router();
+const { chatController } = require('../../controller');
+const fileUpload = require('../../middlewares/fileUpload');
+const multer = require('multer');
+const { chatValidations, addParticipantsValidations } = require('../../validation');
+const validate = require('../../middlewares/validate');
+const maxFileSize = 2 * 1024 * 1024; // 10 MB (in bytes)
+const allowedFileTypes = [
+  "image/jpeg",
+  "image/png",
+  "image/gif",
+  "application/pdf",
+  "video/mp4",
+  "video/mpeg",
+  "video/quicktime",
+  "video/x-msvideo",
+  "video/x-matroska"
+];
+
+const Store = multer({
+  storage: fileUpload("media"),
+  limits: { fileSize: maxFileSize },
+  fileFilter: function (req, file, cb) {
+    const allowedTypes = allowedFileTypes;
+    if (allowedTypes.includes(file.mimetype)) {
+      cb(null, true); // Allow the file
+    } else {
+      cb(new Error("File type not allowed")); // Reject the file
+    }
+  },
+});
+
+const mediaUpload = Store.fields([{ name: "files", maxCount: 5 }]);
+
+/**
+ * Created By: Pradyumn Dwivedi
+ * Created At: 02 May 2024
+ * Use: Create chat route
+ */
+router.post('/createNewChat', validate(chatValidations.chat), chatController.createChat);
+router.post('/addParticipant/:userId', validate(addParticipantsValidations.addParticipant), chatController.addParticipant);
+router.post('/removeParticipant/:userId', validate(addParticipantsValidations.removeParticipant), chatController.removeParticipant);
+router.get('/getChatParticipants/:chatId', chatController.getAllChatParticipants);
+
+// ANGAD
+router.get('/get-all-chat-group-request', chatController.getAllRequestForGroup);
+router.post('/share-files', mediaUpload, chatController.shareFilesInChats);
+router.post('/send-message', chatController.sendMessage);
+
+// router.get('/getAllChats', (req, res)=> {
+//     res.send('Chat endpoint');
+// });
+// router.get('/getAllChatsNotificationCount', (req, res)=> {
+//     res.send('Chat endpoint');
+// });
+
+//export chat route
+module.exports = router;
+
+
diff --git a/src/routes/index.js b/src/routes/index.js
new file mode 100644
index 0000000..5c3add3
--- /dev/null
+++ b/src/routes/index.js
@@ -0,0 +1,6 @@
+const appRouter = require("express").Router();
+
+appRouter.use("/chat", require("./chat"));
+// appRouter.use("/message", require("./messageRouter"));
+
+module.exports = appRouter
\ No newline at end of file
diff --git a/src/services/chat.service.js b/src/services/chat.service.js
new file mode 100644
index 0000000..a873d3e
--- /dev/null
+++ b/src/services/chat.service.js
@@ -0,0 +1,298 @@
+const { Op } = require("sequelize");
+const db = require("../models");
+const chatConstant = require("../utils/constant/chat.constant");
+
+module.exports = {
+    findOneToOneChat: async (userId, otherUserId) => {
+        // Step 1: Find chat ID that has exactly both users
+        const chatIds = await db.chat_participant_link.findAll({
+            where: {
+                principal_xid: {
+                    [Op.in]: [userId, otherUserId]
+                }
+            },
+            attributes: ['chat_xid'],
+            group: ['chat_xid'],
+            having: db.sequelize.literal('COUNT(DISTINCT principal_xid) = 2'),
+            raw: true
+        });
+
+        const targetChatId = chatIds.length > 0 ? chatIds[0].chat_xid : null;
+
+        if (!targetChatId) return null;
+
+        // Step 2: Fetch full chat with participant links
+        const chat = await db.chat.findOne({
+            where: {
+                id: targetChatId,
+                is_group: false
+            },
+            include: [{
+                model: db.chat_participant_link,
+                as: 'participantLinks'
+            }]
+        });
+
+        return chat;
+    },
+
+
+    createOneToOneChat: async (creatorId, otherUserId, profilePhoto) => {
+        const transaction = await db.sequelize.transaction();
+        try {
+            const chat = await db.chat.create({
+                chat_name: null,
+                is_group: false,
+                group_type: null,
+                profile_photo: profilePhoto,
+                created_by: creatorId,
+                is_active: true
+            }, { transaction });
+
+            await db.chat_participant_link.bulkCreate([
+                { chat_xid: chat.id, principal_xid: creatorId, role: 'member' },
+                { chat_xid: chat.id, principal_xid: otherUserId, role: 'member' }
+            ], { transaction });
+
+            await transaction.commit();
+            return chat;
+        } catch (error) {
+            await transaction.rollback();
+            throw error;
+        }
+    },
+
+    createGroupChat: async (creatorId,
+        {
+            chat_name,
+            group_type,
+            max_participants,
+            description,
+            profile_photo
+        }, participants) => {
+        const transaction = await db.sequelize.transaction();
+        try {
+            const chat = await db.chat.create({
+                chat_name,
+                is_group: true,
+                group_type,
+                max_participants,
+                description,
+                profile_photo,
+                group_admin_id: creatorId,
+                created_by: creatorId,
+                is_active: true
+            }, { transaction });
+
+            const participantLinks = participants.map(participantId => ({
+                chat_xid: chat.id,
+                principal_xid: participantId,
+                role: participantId === creatorId ? 'admin' : 'member',
+                added_by: creatorId
+            }));
+
+            await db.chat_participant_link.bulkCreate(participantLinks, { transaction });
+            await transaction.commit();
+            return chat;
+        } catch (error) {
+            await transaction.rollback();
+            throw error;
+        }
+    },
+
+    getChatWithParticipants: async (chatId, includeRequested = false) => {
+        const throughOptions = {
+            attributes: ['role']
+        };
+
+        if (!includeRequested) {
+            throughOptions.where = { is_requested: false };
+        }
+
+        return db.chat.findByPk(chatId, {
+            include: [{
+                model: db.iam_principal,
+                as: 'participants',
+                through: throughOptions
+            }]
+        });
+    },
+
+    getChatDetails: async (chatId) => {
+        return db.chat.findByPk(chatId)
+    },
+
+    validateParticipants: async (participantIds) => {
+        const idsAsStrings = participantIds.map(String);
+        const existingUsers = await db.iam_principal.findAll({
+            where: { id: { [Op.in]: idsAsStrings } },
+            attributes: ['id']
+        });
+
+        const existingIds = existingUsers.map(user => user.id.toString());
+        return idsAsStrings.filter(id => !existingIds.includes(id));
+    },
+
+    addParticipantToGroup: async (chatId, newParticipantId, userId) => {
+        const addParticipant = await db.chat_participant_link.create({
+            chat_xid: chatId,
+            principal_xid: newParticipantId,
+            role: chatConstant.roles.MEMBER,
+            added_by: userId,
+            joined_at: new Date()
+        })
+        return addParticipant;
+    },
+
+    removeParticipantToGroup: async (chatId, newParticipantId) => {
+        return await db.chat_participant_link.destroy({
+            where: {
+                chat_xid: chatId,
+                principal_xid: newParticipantId
+            }
+        })
+    },
+
+    getAllRequest: async (chatId) => {
+        return await db.chat_participant_link.findAll({
+            where: {
+                chat_xid: chatId,
+                is_requested: true,
+                is_active: true
+            },
+            include: [{
+                model: db.iam_principal,
+                as: 'participant',
+                attributes: ['id', 'name', 'profile_photo']
+            }]
+        });
+    },
+
+    saveChatMedia: async (chatId, fileNames) => {
+
+        const mediaRecords = fileNames.map(name => ({
+            chat_xid: chatId,
+            image_file_name: name,
+            is_active: true,
+            is_read: false
+        }));
+        return await db.chatMedia.bulkCreate(mediaRecords);
+    },
+    createJoinRequest: async (chatId, userId) => {
+        // Check if already requested
+        const existing = await db.chat_participant_link.findOne({
+            where: {
+                chat_xid: chatId,
+                principal_xid: userId
+            }
+        });
+
+        if (existing) {
+            // If already requested or already a member, do nothing or update as needed
+            if (existing.is_requested) {
+                return existing;
+            }
+            // If already a member, don't create a new request
+            throw new Error("User is already a participant or has a pending request.");
+        }
+
+        // Create a new participant link with is_requested = true
+        return await db.chat_participant_link.create({
+            chat_xid: chatId,
+            principal_xid: userId,
+            role: chatConstant.roles.MEMBER,
+            is_requested: true,
+            is_active: true,
+            joined_at: new Date()
+        });
+    },
+    // ...existing code...
+
+    getAllJoinRequestsForGroup: async (chatId) => {
+        // Returns all users who have requested to join (is_requested: true)
+        const requests = await db.chat_participant_link.findAll({
+            where: {
+                chat_xid: chatId,
+                is_requested: true
+            },
+            include: [
+                {
+                    model: db.iam_principal,
+                    as: 'participant', // adjust if your association uses a different alias
+                    attributes: ['id', 'user_name', 'full_name', 'profile_photo']
+                }
+            ]
+        });
+        return requests.map(r => ({
+            id: r.principal_xid,
+            user_name: r.principal?.user_name,
+            full_name: r.principal?.full_name,
+            profile_photo: r.principal?.profile_photo,
+            requested_at: r.createdAt
+        }));
+    },
+
+    hasPendingJoinRequest: async (chatId, participantId) => {
+        const request = await db.chat_participant_link.findOne({
+            where: {
+                chat_xid: chatId,
+                principal_xid: participantId,
+                is_requested: true
+            }
+        });
+        return !!request;
+    },
+    acceptJoinRequest: async (chatId, participantId) => {
+        const transaction = await db.sequelize.transaction();
+        try {
+            // Update the participant link to mark as accepted
+            await db.chat_participant_link.update({
+                is_requested: false,
+                is_active: true,
+                joined_at: new Date()
+            }, {
+                where: {
+                    chat_xid: chatId,
+                    principal_xid: participantId
+                },
+                transaction
+            });
+
+            await transaction.commit();
+        } catch (error) {
+            await transaction.rollback();
+            throw error;
+        }
+    },
+
+    rejectJoinRequest: async (chatId, participantId) => {
+        const transaction = await db.sequelize.transaction();
+        try {
+            // Either delete the request or mark it as rejected
+            await db.chat_participant_link.destroy({
+                where: {
+                    chat_xid: chatId,
+                    principal_xid: participantId,
+                    is_requested: true
+                },
+                transaction
+            });
+
+            await transaction.commit();
+        } catch (error) {
+            await transaction.rollback();
+            throw error;
+        }
+    },
+
+    saveMessage: async ({ chat_xid, sender_xid, receiver_xid, message, message_type }) => {
+        return await db.chatMessage.create({
+            chat_xid,
+            sender_xid,
+            receiver_xid,
+            message,
+            message_type
+        });
+
+    },
+}
\ No newline at end of file
diff --git a/src/services/iam_principal.service.js b/src/services/iam_principal.service.js
new file mode 100644
index 0000000..159459f
--- /dev/null
+++ b/src/services/iam_principal.service.js
@@ -0,0 +1,19 @@
+const { Op } = require("sequelize")
+const db = require("../models")
+
+module.exports = {
+    create: async (data) => await db.iam_principal.create(data),
+    getAll: async () => await db.iam_principal.findAll(),
+    getById: async (id) => await db.iam_principal.findByPk(id),
+    getParticipantsDetails: async (participants) => {
+        return await db.iam_principal.findAll({
+            where: { id: { [Op.in]: participants } },
+            attributes: ['id', 'full_name', 'user_name', 'profile_photo']
+        })
+    },
+    findUser: async(userId)=> {
+        return await db.iam_principal.findByPk(userId, {
+            attributes: ['id', 'full_name', 'user_name', 'profile_photo']
+        })
+    }
+}
\ No newline at end of file
diff --git a/src/services/index.js b/src/services/index.js
new file mode 100644
index 0000000..7f888d1
--- /dev/null
+++ b/src/services/index.js
@@ -0,0 +1,4 @@
+module.exports = {
+    iamprincipalService: require("./iam_principal.service"),
+    chatService: require("./chat.service")
+}
\ No newline at end of file
diff --git a/src/socket/index.js b/src/socket/index.js
new file mode 100644
index 0000000..74a5a80
--- /dev/null
+++ b/src/socket/index.js
@@ -0,0 +1,45 @@
+const JWT = require("jsonwebtoken");
+const db = require("../models");
+const { CONNECTED_EVENT, DISCONNECT_EVENT, SOCKET_ERROR_EVENT } = require("../utils/constant/socket.constant");
+require("dotenv").config();
+
+const verfiedAccessToken = (token) => {
+  return JWT.decode(token);
+};
+
+module.exports = {
+  initializeSocketIO: (io) => {
+    io.on("connection", async (socket) => {
+      try {
+        socket.emit(CONNECTED_EVENT);
+
+        // Join a chat room (for both one-to-one and group)
+        socket.on('join-room', ({ chatId }) => {
+          socket.join(chatId);
+          console.log(`User with socket ID ${socket.id} joined room: ${chatId}`);
+          socket.emit('joined-room', { chatId });
+        });
+
+        // Send message to a chat room
+        socket.on('chat-message', (data) => {
+          console.log("New message data:", data);
+          if (data.chatId) {
+            io.to(data.chatId).emit('chat-message', data);
+          }
+        });
+
+        console.log("User connected 🗼", socket.id);
+
+        socket.on(DISCONNECT_EVENT, () => {
+          console.log("user has disconnected 🚫. socketId:", socket.id);
+        });
+      } catch (error) {
+        socket.emit(
+          SOCKET_ERROR_EVENT,
+          error?.message ||
+          "Something went wrong while connecting to the socket."
+        );
+      }
+    });
+  },
+};
diff --git a/src/utils/constant/chat.constant.js b/src/utils/constant/chat.constant.js
new file mode 100644
index 0000000..bc163e6
--- /dev/null
+++ b/src/utils/constant/chat.constant.js
@@ -0,0 +1,10 @@
+module.exports = {
+	GROUP_CHAT: 'group_chat',
+	PUBLIC_GROUP: '1',
+	PRIVATE_GROUP: '2',
+
+	roles: {
+		ADMIN: 'admin',
+		MEMBER: 'member'
+	}
+};
diff --git a/src/utils/constant/socket.constant.js b/src/utils/constant/socket.constant.js
new file mode 100644
index 0000000..0eab3cd
--- /dev/null
+++ b/src/utils/constant/socket.constant.js
@@ -0,0 +1,29 @@
+module.exports = {
+    // ? once user is ready to go
+    CONNECTED_EVENT: "connected",
+    // ? when user gets disconnected
+    DISCONNECT_EVENT: "disconnect",
+    // ? when user joins a socket room
+    JOIN_CHAT_EVENT: "joinChat",
+    // ? when participant gets removed from group, chat gets deleted or leaves a group
+    LEAVE_CHAT_EVENT: "leaveChat",
+    // ? when admin updates a group name
+    UPDATE_GROUP_NAME_EVENT: "updateGroupName",
+    // ? when message send to server
+    MESSAGE_SENT_EVENT: "messageSent",
+    // ? when new message is received
+    MESSAGE_RECEIVED_EVENT: "messageReceived",
+    // ? when there is new one on one chat, new group chat or user gets added in the group
+    NEW_CHAT_EVENT: "newChat",
+    // ? when there is an error in socket
+    SOCKET_ERROR_EVENT: "socketError",
+    // ? when participant stops typing
+    STOP_TYPING_EVENT: "stopTyping",
+    // ? when participant starts typing
+    TYPING_EVENT: "typing",
+    // ? when participant sent message
+    REFRESH_CHAT_EVENT: "refreshChat",
+    //for sending notification for unread messages to reciever
+    REFRESH_NOTIFICATION_COUNT_EVENT: "refreshNotificationCount",
+  };
+  
\ No newline at end of file
diff --git a/src/utils/handler/ApiError.handler.js b/src/utils/handler/ApiError.handler.js
new file mode 100644
index 0000000..39de1a3
--- /dev/null
+++ b/src/utils/handler/ApiError.handler.js
@@ -0,0 +1,41 @@
+/**
+ * Custom error class for handling API errors. Extends the native Error class.
+ * @class ApiError
+ * @extends Error
+ *
+ * @param {number} statusCode - HTTP status code associated with the error.
+ * @param {string} [message="Something went wrong"] - Error message (default is a generic message).
+ * @param {Array} [errors=[]] - Array containing specific error details or additional information.
+ * @param {boolean} [isOperational=true] - Indicates if the error is operational or not.
+ * @param {string} [stack=""] - Stack trace for the error (optional, defaults to an empty string).
+ */
+class ApiError extends Error {
+	constructor(
+		statusCode,
+		message = 'Something went wrong',
+		errors = [],
+		isOperational = true,
+		stack = ''
+	) {
+		// Call the constructor of the parent class (Error)
+		super(message);
+
+		// Custom properties for API error handling
+		this.statusCode = statusCode; // HTTP status code associated with the error.
+		this.data = null; // Additional data associated with the error (initially set to null).
+		this.message = message; // Error message for the API response.
+		this.success = false; // Indicates the failure nature of the API request.
+		this.errors = errors; // Specific error details or additional information.
+		this.isOperational = isOperational; // Indicates if the error is operational or not.
+
+		// Set the stack trace if provided; otherwise, capture the current stack trace.
+		if (stack) {
+			this.stack = stack; // Provided stack trace.
+		} else {
+			Error.captureStackTrace(this, this.constructor); // Capture the current stack trace.
+		}
+	}
+}
+
+// Export the ApiError class for use in other modules.
+module.exports = ApiError;
diff --git a/src/utils/handler/ApiResponse.handler.js b/src/utils/handler/ApiResponse.handler.js
new file mode 100644
index 0000000..40865f8
--- /dev/null
+++ b/src/utils/handler/ApiResponse.handler.js
@@ -0,0 +1,19 @@
+/**
+ * Class representing a standard API response.
+ * @class ApiResponse
+ *
+ * @param {number} statusCode - HTTP status code associated with the response.
+ * @param {any} data - Data to be returned in the response.
+ * @param {string} [message="Success"] - Response message (default is "Success").
+ */
+class ApiResponse {
+	constructor(statusCode, data, message = 'Success') {
+		this.statusCode = statusCode; // HTTP status code associated with the response.
+		this.data = data; // Data to be returned in the response.
+		this.message = message; // Response message (default is "Success").
+		this.success = statusCode < 400; // Indicates if the response is successful based on the status code.
+	}
+}
+
+// Export the ApiResponse class for use in other modules.
+module.exports = ApiResponse;
diff --git a/src/utils/handler/Async.handler.js b/src/utils/handler/Async.handler.js
new file mode 100644
index 0000000..0f682d4
--- /dev/null
+++ b/src/utils/handler/Async.handler.js
@@ -0,0 +1,11 @@
+/**
+ * Asynchronous error handler for Express routes.
+ * @function AsyncHandler
+ *
+ * @param {Function} fn - Asynchronous function to be executed.
+ * @returns {Function} Middleware function that handles errors for asynchronous routes.
+ */
+module.exports.AsyncHandler = (fn) => (req, res, next) => {
+	// Wrap the asynchronous function in a promise and handle any errors by passing them to the next middleware.
+	Promise.resolve(fn(req, res, next)).catch(next);
+};
diff --git a/src/utils/handler/pick.handler.js b/src/utils/handler/pick.handler.js
new file mode 100644
index 0000000..f59f956
--- /dev/null
+++ b/src/utils/handler/pick.handler.js
@@ -0,0 +1,20 @@
+/**
+ * Create an object composed of the picked object properties.
+ * @function pick
+ *
+ * @param {Object} object - The source object to pick properties from.
+ * @param {string[]} keys - The array of property names to pick from the source object.
+ * @returns {Object} New object with only the picked properties.
+ */
+const pick = (object, keys) => {
+	return keys.reduce((obj, key) => {
+		// Check if the object has the specified property
+		if (object && Object.prototype.hasOwnProperty.call(object, key)) {
+			obj[key] = object[key]; // Assign the property to the new object
+		}
+		return obj; // Return the new object
+	}, {}); // Initialize the new object as an empty object
+};
+
+// Export the pick function for use in other modules.
+module.exports = pick;
diff --git a/src/utils/helper/aesCrypto.helper.js b/src/utils/helper/aesCrypto.helper.js
new file mode 100644
index 0000000..413be65
--- /dev/null
+++ b/src/utils/helper/aesCrypto.helper.js
@@ -0,0 +1,22 @@
+const { Buffer } = require('buffer');
+const crypto = require('crypto');
+
+// AES encryption function using crypto
+function aesEncrypt(trandata, key) {
+	const iv = Buffer.from('PGKEYENCDECIVSPC'); // 16-byte IV for AES
+	const cipher = crypto.createCipheriv('aes-256-cbc', Buffer.from(key), iv);
+	let encrypted = cipher.update(trandata, 'utf8', 'hex');
+	encrypted += cipher.final('hex');
+	return encrypted;
+}
+
+// AES decryption function using crypto
+function aesDecryption(encryptedHex, key) {
+	const iv = Buffer.from('PGKEYENCDECIVSPC');
+	const decipher = crypto.createDecipheriv('aes-256-cbc', Buffer.from(key), iv);
+	let decrypted = decipher.update(encryptedHex, 'hex', 'utf8');
+	decrypted += decipher.final('utf8');
+	return decrypted;
+}
+
+module.exports = { aesEncrypt, aesDecryption };
diff --git a/src/utils/helper/emailValidator.helper.js b/src/utils/helper/emailValidator.helper.js
new file mode 100644
index 0000000..6020a4f
--- /dev/null
+++ b/src/utils/helper/emailValidator.helper.js
@@ -0,0 +1,32 @@
+const dns = require('node:dns');
+const logger = require('../../config/logger');
+// Async function to resolve MX records for a domain
+async function resolveMx(domain) {
+	return new Promise((resolve, reject) => {
+		dns.resolveMx(domain, (err, mxRecords) => {
+			if (err) {
+				reject(err);
+				return;
+			}
+			const addresses = mxRecords.map((mxRecord) => mxRecord.exchange);
+			resolve(addresses);
+		});
+	});
+}
+// Async function to check email address validity
+async function checkEmailValidity(email) {
+	try {
+		const domain = email?.split('@')[1];
+		const addresses = await resolveMx(domain, 'MX');
+
+		if (addresses && addresses?.length > 0) {
+			return true;
+		}
+		return false; // No MX record exists
+	} catch (err) {
+		logger.warn(err);
+		return false; // Error occurred
+	}
+}
+
+module.exports = checkEmailValidity;
diff --git a/src/utils/helper/fileValidator.helper.js b/src/utils/helper/fileValidator.helper.js
new file mode 100644
index 0000000..c413bff
--- /dev/null
+++ b/src/utils/helper/fileValidator.helper.js
@@ -0,0 +1,12 @@
+function isValidFileSize(value) {
+	// Check the file size here, e.g., to ensure it's not larger than a specific limit.
+	// Adjust the maximum size as needed (in bytes).
+	const maxSizeInBytes = 10 * 1024 * 1024; // 10 MB
+
+	if (value && value.size <= maxSizeInBytes) {
+		return true; // Valid file size
+	}
+
+	return false; // Invalid file size
+}
+module.exports = isValidFileSize;
diff --git a/src/utils/helper/generateExcel.helper.js b/src/utils/helper/generateExcel.helper.js
new file mode 100644
index 0000000..6823ffe
--- /dev/null
+++ b/src/utils/helper/generateExcel.helper.js
@@ -0,0 +1,85 @@
+const ExcelJS = require('exceljs');
+const fs = require('fs');
+const logger = require('../../config/logger');
+
+/**
+ * Generates an Excel file using provided headers and data, and streams it directly in the HTTP response.
+ *
+ * @param {Array} headers - An array of objects where each object defines a column in the Excel file.
+ * Each object should have the following structure:
+ *   - header: {string} The column name to be displayed in the Excel sheet.
+ *   - key: {string} The key that maps to the data in the data array.
+ *   - width: {number} The width of the column in the Excel sheet.
+ *
+ * Example:
+ * const headers = [
+ *   { header: 'ID', key: 'id', width: 10 },
+ *   { header: 'Name', key: 'name', width: 30 },
+ *   { header: 'Age', key: 'age', width: 10 }
+ * ];
+ *
+ * @param {Array} data - An array of objects where each object represents a row in the Excel file.
+ * The keys in each object must correspond to the keys defined in the headers array.
+ *
+ * Example:
+ * const data = [
+ *   { id: 1, name: 'John Doe', age: 30 },
+ *   { id: 2, name: 'Jane Smith', age: 25 },
+ *   { id: 3, name: 'Mike Johnson', age: 35 }
+ * ];
+ *
+ * @param {Object} res - The HTTP response object, used to stream the generated Excel file back to the client.
+ *
+ * @returns {Promise<void>} - A promise that resolves once the Excel file has been fully written to the response.
+ */
+async function generateExcelWithResponse(headers, data, res) {
+	const workbook = new ExcelJS.Workbook();
+	const worksheet = workbook.addWorksheet('Sheet1');
+
+	// Set headers (columns)
+	worksheet.columns = headers;
+
+	// Add data rows
+	data.forEach((row) => {
+		worksheet.addRow(row);
+	});
+
+	// Set the headers for the response to trigger a file download
+	res.setHeader(
+		'Content-Type',
+		'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
+	);
+	res.setHeader('Content-Disposition', 'attachment; filename="data.xlsx"');
+
+	// Stream the workbook directly to the response
+	await workbook.xlsx.write(res);
+	res.end(); // Close the stream after writing the file
+}
+
+async function generateExcelWithFilepath(headers, data, outputPath) {
+	const workbook = new ExcelJS.Workbook();
+	const worksheet = workbook.addWorksheet('Sheet1');
+
+	// Set the headers (columns) dynamically
+	worksheet.columns = headers;
+
+	// Add rows from the data array
+	data.forEach((row) => {
+		worksheet.addRow(row);
+	});
+
+	// Create a writable stream to save the file
+	const writeStream = fs.createWriteStream(outputPath);
+
+	// Stream workbook to the write stream
+	await workbook.xlsx
+		.write(writeStream)
+		.then(() => {
+			logger.info(`Excel file generated at ${outputPath}`);
+		})
+		.catch((err) => {
+			logger.error('Error generating Excel:', err);
+		});
+}
+
+module.exports = { generateExcelWithResponse, generateExcelWithFilepath };
diff --git a/src/utils/helper/maskemail.helper.js b/src/utils/helper/maskemail.helper.js
new file mode 100644
index 0000000..18e23c7
--- /dev/null
+++ b/src/utils/helper/maskemail.helper.js
@@ -0,0 +1,14 @@
+function maskEmail(email) {
+	const [localPart, domain] = email.split('@');
+	const maskedLocal =
+		localPart[0] +
+		'*'.repeat(Math.max(localPart.length - 2, 1)) +
+		localPart.slice(-1);
+	const [domainName, domainExtension] = domain.split('.');
+	const maskedDomain =
+		domainName[0] +
+		'*'.repeat(Math.max(domainName.length - 2, 1)) +
+		domainName.slice(-1);
+	return `${maskedLocal}@${maskedDomain}.${domainExtension}`;
+}
+module.exports = maskEmail;
diff --git a/src/utils/helper/notificationMsg.helper.js b/src/utils/helper/notificationMsg.helper.js
new file mode 100644
index 0000000..9835e62
--- /dev/null
+++ b/src/utils/helper/notificationMsg.helper.js
@@ -0,0 +1,495 @@
+const {
+	sendNotification,
+} = require('../../services/push_notification/onesignal.service');
+
+// Function to get deposit received message
+// const getDepositReceivedMessage = amount => ({
+//     en: `Funds Added to Your Wallet: A deposit of $${amount} has been credited to your account.`,
+//     ar: `تمت إضافة أموال إلى محفظتك: تمت إضافة إيداع بقيمة ${amount} دولار إلى حسابك.`
+// });
+
+// // Function to get educational material published message
+// const getEducationalMaterialPublishedMessage = () => ({
+//     en: 'Learn and Grow! Expand your knowledge with new educational material in our Academy.',
+//     ar: 'تعلم ونم! وسع معرفتك من خلال المواد التعليمية الجديدة في أكاديميتنا.'
+// });
+
+// // Function to get investment opportunity cancelled message
+// const investmentOpportunityCancelled = investmentName => ({
+//     en: `Investment Opportunity Cancelled: ${investmentName} has been cancelled.`,
+//     ar: `تم إلغاء فرصة الاستثمار: ${investmentName} قد تم إلغاؤه.`
+// });
+
+// Function to get investor qualification upgrade message
+// const investorQualificationUpgrade = () => ({
+//     en: 'Congratulations, Investor! Your Investor Qualification has been upgraded. Enjoy enhanced benefits!',
+//     ar: 'تهانينا، مستثمر! تم ترقية مؤهلاتك كمستثمر. استمتع بالمزايا المعززة!'
+// });
+
+// // Function to get KYC status approved message
+// const kycStatusApproved = () => ({
+//     en: 'KYC Approved: Great news! Your KYC verification is successful.',
+//     ar: 'تمت الموافقة على KYC: أخبار رائعة! تم التحقق من KYC بنجاح.'
+// });
+
+// Function to get KYC status declined message
+// const kycStatusDeclined = () => ({
+//     en: 'KYC Update: Your KYC status requires attention. Please pass the verification again.',
+//     ar: 'تحديث KYC: حالة KYC الخاصة بك تتطلب انتباهاً. يرجى إعادة إجراء التحقق.'
+// });
+
+// // Function to get new investment opportunity message
+// const newInvestmentOpportunity = () => ({
+//     en: 'Discover New Opportunities! A fresh investment opportunity awaits you. Dive in now!',
+//     ar: 'اكتشف الفرص الجديدة! تنتظرك فرصة استثمارية جديدة. ابدأ الآن!'
+// });
+
+// // Function to get subscription investment closed message
+// const subscriptionInvestmentClosed = () => ({
+//     en: 'Investment Update: Your investment opportunity has just closed.',
+//     ar: 'تحديث الاستثمار: لقد تم إغلاق فرصة استثمارك للتو.'
+// });
+
+// // Function to get subscription investment updated message
+// const subscriptionInvestmentUpdated = () => ({
+//     en: 'Investment Status Alert: Your investment subscription details have been updated.',
+//     ar: 'تنبيه حالة الاستثمار: تمت تحديث تفاصيل اشتراكك في الاستثمار.'
+// });
+
+// Function to get withdrawal completed message
+// const withdrawalCompleted = async () => {
+//     title = 'Withdrawal Complete';
+//     message = "Withdrawal Complete: Your withdrawal is processed. Check your bank for funds!',"
+//     return await sendNotification(title, message, playerIds, imageUrl, additionalData);
+
+// };
+// const investmentOpportunityCancelled = async (investmentName, playerIds = [], imageUrl, additionalData = {}) => {
+//     title = `Investment Opportunity Cancellation Notification`,
+//     message = `Investment Opportunity Cancelled: ${investmentName} has been cancelled.`;
+//     return await sendNotification(title, message, playerIds, imageUrl, additionalData);
+
+// };
+
+// // Function to send new investment opportunity notification
+// const sendNewInvestmentOpportunityNotification = async (investmentName, manualDate, manualTime, expectedReturn, playerIds = [], imageUrl = '', additionalData = {}) => {
+//     const title = 'New investment opportunity';
+//     const message = `${investmentName} launching on ${manualDate} at ${manualTime} with an expected return of ${expectedReturn}%. Tap for more details.`;
+//     return await sendNotification(title, message, playerIds, imageUrl, additionalData);
+// };
+
+// // Function to send investment open notification
+// const sendInvestmentOpenNotification = async (investmentName, playerIds = [], imageUrl = '', additionalData = {}) => {
+//     const title = `${investmentName} is LIVE`;
+//     const message = `${investmentName} is now open for investment! Tap for more details.`;
+//     return await sendNotification(title, message, playerIds, imageUrl, additionalData);
+// };
+
+// // Function to send investment fully subscribed notification
+// const sendInvestmentFullySubscribedNotification = async (investmentName, playerIds = [], imageUrl = '', additionalData = {}) => {
+//     const title = `${investmentName} fully subscribed`;
+//     const message = `${investmentName} has been fully subscribed and is now closed to new investors.`;
+//     return await sendNotification(title, message, playerIds, imageUrl, additionalData);
+// };
+
+// // Function to send deposit received notification
+// const sendDepositReceivedNotification = async (playerIds = [], imageUrl = '', additionalData = {}) => {
+//     const title = 'Deposit received';
+//     const message = 'A new deposit has been made into your Tanami wallet. Explore exclusive investment opportunities only at Tanami.';
+//     return await sendNotification(title, message, playerIds, imageUrl, additionalData);
+// };
+// const sendFawateerDepositReceivedNotification = async (playerIds = [], imageUrl = '', additionalData = {}) => {
+//     const title = 'Deposit received';
+//     const message = 'A new deposit has been made into your Tanami wallet. Explore exclusive investment opportunities only at Tanami.';
+//     return await sendNotification(title, message, playerIds, imageUrl, additionalData);
+// };
+
+// // Function to send distribution notice notification
+// const sendDistributionNoticeNotification = async (investmentName, playerIds = [], imageUrl = '', additionalData = {}) => {
+//     const title = 'Distribution notice';
+//     const message = `New distribution received regarding your investment in ${investmentName}. Tap for more details.`;
+//     return await sendNotification(title, message, playerIds, imageUrl, additionalData);
+// };
+// // Function to send distribution notice notification
+// const sendExitedNoticeNotification = async (investmentName, playerIds = [], imageUrl = '', additionalData = {}) => {
+//     const title = `${investmentName} has exited`;
+//     const message = `Big news! We've successfully exited our investment in ${investmentName}. Tap for more details.`;
+//     return await sendNotification(title, message, playerIds, imageUrl, additionalData);
+// };
+
+// // Function to send KYC approved notification
+// const sendKYCApprovedNotification = async (playerIds = [], imageUrl = '', additionalData = {}) => {
+//     const title = 'You\'re verified!';
+//     const message = 'KYC approved - You\'re all set to start investing! Tap to explore the latest exclusive opportunities available.';
+//     return await sendNotification(title, message, playerIds, imageUrl, additionalData);
+// };
+
+// // Function to send investor status upgrade notification
+// const sendInvestorStatusUpgradeNotification = async (playerIds = [], imageUrl = '', additionalData = {}) => {
+//     const title = 'You\'ve been upgraded!';
+//     const message = 'Congrats! You can now enjoy investing with no limits! Tap to explore the latest exclusive opportunities available.';
+//     return await sendNotification(title, message, playerIds, imageUrl, additionalData);
+// };
+
+const sendLocalizedNotifications = async (
+	playerIds = { playerIdsForArebic: [], playerIdsEnglish: [] },
+	title,
+	message,
+	imageUrl = '',
+	additionalData = {}
+) => {
+	return await Promise.all([
+		playerIds.playerIdsEnglish?.length > 0 &&
+			sendNotification(
+				title,
+				message,
+				playerIds.playerIdsEnglish,
+				imageUrl,
+				additionalData
+			),
+
+		playerIds.playerIdsForArebic?.length > 0 &&
+			sendNotification(
+				{ en: title.ar, ar: title.ar }, // Correctly set Arabic title
+				{ en: message.ar, ar: message.ar }, // Correctly set Arabic message
+				playerIds.playerIdsForArebic,
+				imageUrl,
+				additionalData
+			),
+	]);
+};
+
+const _withdrawalCompleted = async (
+	playerIds = [],
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = { en: 'Withdrawal Complete', ar: 'اكتمال السحب' };
+	const message = {
+		en: 'Withdrawal Complete: Your withdrawal is processed. Check your bank for funds.',
+		ar: 'اكتمال السحب: تم معالجة السحب الخاص بك. تحقق من البنك للحصول على الأموال.',
+	};
+	return await sendNotification(
+		title,
+		message,
+		playerIds,
+		imageUrl,
+		additionalData
+	);
+};
+
+const withdrawalCompleted = async (
+	playerIds = {
+		playerIdsForArebic: [],
+		playerIdsEnglish: [],
+	},
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = { en: 'Withdrawal Complete', ar: 'اكتمال السحب' };
+	const message = {
+		en: 'Withdrawal Complete: Your withdrawal is processed. Check your bank for funds.',
+		ar: 'اكتمال السحب: تم معالجة السحب الخاص بك. تحقق من البنك للحصول على الأموال.',
+	};
+	return await sendLocalizedNotifications(
+		playerIds,
+		title,
+		message,
+		imageUrl,
+		additionalData
+	);
+};
+
+const _investmentOpportunityCancelled = async (
+	investmentName,
+	playerIds = [],
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = {
+		en: 'Investment Opportunity Cancellation Notification',
+		ar: 'إشعار إلغاء فرصة استثمار',
+	};
+	const message = {
+		en: `Investment Opportunity Cancelled: ${investmentName} has been cancelled.`,
+		ar: `تم إلغاء فرصة الاستثمار: "${investmentName}".`,
+	};
+	return await sendNotification(
+		title,
+		message,
+		playerIds,
+		imageUrl,
+		additionalData
+	);
+};
+const investmentOpportunityCancelled = async (
+	investmentName,
+	playerIds = {
+		playerIdsForArebic: [],
+		playerIdsEnglish: [],
+	},
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = {
+		en: 'Investment Opportunity Cancellation Notification',
+		ar: 'إشعار إلغاء فرصة استثمار',
+	};
+	const message = {
+		en: `Investment Opportunity Cancelled: ${investmentName} has been cancelled.`,
+		ar: `تم إلغاء فرصة الاستثمار: ${investmentName}.`,
+	};
+	return await sendLocalizedNotifications(
+		playerIds,
+		title,
+		message,
+		imageUrl,
+		additionalData
+	);
+};
+
+const sendNewInvestmentOpportunityNotification = async (
+	investmentName,
+	manualDate,
+	manualTime,
+	expectedReturn,
+	playerIds = [],
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = {
+		en: 'New investment opportunity',
+		ar: 'فرصة استثمارية جديدة',
+	};
+	const message = {
+		en: `${investmentName} launching on ${manualDate} at ${manualTime} with an expected return of ${expectedReturn}%. Tap for more details.`,
+		ar: `${investmentName} سيتم إطلاقها في ${manualDate} في ${manualTime} مع عائد متوقع بنسبة ${expectedReturn}%. اضغط لمزيد من التفاصيل.`,
+	};
+	return await sendNotification(
+		title,
+		message,
+		playerIds,
+		imageUrl,
+		additionalData
+	);
+};
+
+const sendInvestmentOpenNotification = async (
+	investmentName,
+	playerIds = [],
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = {
+		en: `${investmentName} is LIVE`,
+		ar: `${investmentName} مفتوح الآن`,
+	};
+	const message = {
+		en: `${investmentName} is now open for investment! Tap for more details.`,
+		ar: `${investmentName} مفتوح الآن للاستثمار! اضغط لمزيد من التفاصيل.`,
+	};
+	return await sendLocalizedNotifications(
+		playerIds,
+		title,
+		message,
+		imageUrl,
+		additionalData
+	);
+};
+
+const sendInvestmentFullySubscribedNotification = async (
+	investmentName,
+	playerIds = [],
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = {
+		en: `${investmentName} fully subscribed`,
+		ar: `${investmentName} تم الاشتراك فيه بالكامل`,
+	};
+	const message = {
+		en: `${investmentName} has been fully subscribed and is now closed to new investors.`,
+		ar: `${investmentName} تم الاشتراك فيه بالكامل وهو مغلق الآن للمستثمرين الجدد.`,
+	};
+	return await sendLocalizedNotifications(
+		playerIds,
+		title,
+		message,
+		imageUrl,
+		additionalData
+	);
+};
+
+const sendDepositReceivedNotification = async (
+	playerIds = [],
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = { en: 'Deposit received', ar: 'تم استلام الإيداع' };
+	const message = {
+		en: 'A new deposit has been made into your Tanami wallet. Explore exclusive investment opportunities only at Tanami.',
+		ar: 'تم إجراء إيداع جديد في محفظة تنامي الخاصة بك. استكشف فرص الاستثمار الحصرية فقط مع تنامي.',
+	};
+	return await sendLocalizedNotifications(
+		playerIds,
+		title,
+		message,
+		imageUrl,
+		additionalData
+	);
+};
+
+const sendFawateerDepositReceivedNotification = async (
+	playerIds = [],
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = { en: 'Deposit received', ar: 'تم استلام الإيداع' };
+	const message = {
+		en: 'A new deposit has been made into your Tanami wallet. Explore exclusive investment opportunities only at Tanami.',
+		ar: 'تم إجراء إيداع جديد في محفظة تنامي الخاصة بك. استكشف فرص الاستثمار الحصرية فقط مع تنامي.',
+	};
+	return await sendLocalizedNotifications(
+		playerIds,
+		title,
+		message,
+		imageUrl,
+		additionalData
+	);
+};
+
+const sendDistributionNoticeNotification = async (
+	investmentName,
+	playerIds = [],
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = { en: 'Distribution notice', ar: 'إشعار التوزيع' };
+	const message = {
+		en: `New distribution received regarding your investment in ${investmentName}.Tap for more details.`,
+		ar: `تم استلام توزيع جديد يتعلق باستثمارك في ${investmentName}. انقر لمزيد من التفاصيل.`,
+	};
+	return await sendLocalizedNotifications(
+		playerIds,
+		title,
+		message,
+		imageUrl,
+		additionalData
+	);
+
+	// return await sendNotification(
+	// 	title,
+	// 	message,
+	// 	playerIds,
+	// 	imageUrl,
+	// 	additionalData
+	// );
+};
+
+const _sendExitedNoticeNotification = async (
+	investmentName,
+	playerIds = [],
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = {
+		en: `${investmentName} has exited`,
+		ar: `${investmentName} تم الخروج منه`,
+	};
+	const message = {
+		en: `We've successfully exited our investment in ${investmentName}.`,
+		ar: `لقد نجحنا في الخروج من استثمارنا في ${investmentName}.`,
+	};
+	return await sendNotification(
+		title,
+		message,
+		playerIds,
+		imageUrl,
+		additionalData
+	);
+};
+const sendExitedNoticeNotification = async (
+	investmentName,
+	playerIds = {
+		playerIdsForArebic: [],
+		playerIdsEnglish: [],
+	},
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = {
+		en: `${investmentName} has exited`,
+		ar: `${investmentName} تم الخروج منه`,
+	};
+	const message = {
+		en: `We've successfully exited our investment in ${investmentName}.Tap for more details.`,
+		ar: `لقد نجحنا في إنهاء استثمارنا في ${investmentName}. انقر لمزيد من التفاصيل.`,
+	};
+	return await sendLocalizedNotifications(
+		playerIds,
+		title,
+		message,
+		imageUrl,
+		additionalData
+	);
+};
+
+const sendKYCApprovedNotification = async (
+	playerIds = [],
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = { en: "You're verified!", ar: 'تم التحقق منك!' };
+	const message = {
+		en: "You're all set to start investing! Tap to explore the latest exclusive opportunities available.",
+		ar: 'أنت جاهز تمامًا لبدء الاستثمار! انقر لاستكشاف أحدث الفرص الحصرية المتاحة',
+	};
+	return await sendLocalizedNotifications(
+		playerIds,
+		title,
+		message,
+		imageUrl,
+		additionalData
+	);
+};
+
+const sendInvestorStatusUpgradeNotification = async (
+	playerIds = [],
+	imageUrl = '',
+	additionalData = {}
+) => {
+	const title = { en: 'Investor status upgrade', ar: 'ترقية حالة المستثم' };
+	const message = {
+		en: 'You can now enjoy investing with no limits! Tap to explore the latest exclusive opportunities available.',
+		ar: 'مبروك! يمكنك الآن الاستمتاع بالاستثمار بلا حدود!',
+	};
+	return await sendLocalizedNotifications(
+		playerIds,
+		title,
+		message,
+		imageUrl,
+		additionalData
+	);
+};
+
+// Exporting functions
+module.exports = {
+	// getDepositReceivedMessage,
+	// getEducationalMaterialPublishedMessage,
+	investmentOpportunityCancelled,
+	// investorQualificationUpgrade,
+	// kycStatusApproved,
+	// kycStatusDeclined,
+	// newInvestmentOpportunity,
+	// subscriptionInvestmentClosed,
+	// subscriptionInvestmentUpdated,
+	withdrawalCompleted,
+	sendNewInvestmentOpportunityNotification,
+	sendInvestmentOpenNotification,
+	sendInvestmentFullySubscribedNotification,
+	sendDepositReceivedNotification,
+	sendDistributionNoticeNotification,
+	sendKYCApprovedNotification,
+	sendInvestorStatusUpgradeNotification,
+	sendExitedNoticeNotification,
+	sendFawateerDepositReceivedNotification,
+};
diff --git a/src/utils/helper/otpGenrator.helper.js b/src/utils/helper/otpGenrator.helper.js
new file mode 100644
index 0000000..02b137a
--- /dev/null
+++ b/src/utils/helper/otpGenrator.helper.js
@@ -0,0 +1,15 @@
+const config = require('../../config/config');
+
+const generateOTP = () => {
+	var digits = '0123456789';
+	let OTP = '';
+	if (config.byPassOTP) {
+		OTP = '123456';
+	} else {
+		for (let i = 0; i < 6; i++) {
+			OTP += digits[Math.floor(Math.random() * 10)];
+		}
+	}
+	return OTP;
+};
+module.exports = generateOTP;
diff --git a/src/utils/helper/passwordGenrator.js b/src/utils/helper/passwordGenrator.js
new file mode 100644
index 0000000..8f4c1a2
--- /dev/null
+++ b/src/utils/helper/passwordGenrator.js
@@ -0,0 +1,19 @@
+// Function to generate a random password with a specified length
+function generatePassword(length) {
+	const charset =
+		'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()_+';
+	let password = '';
+
+	for (let i = 0; i < length; i++) {
+		const randomIndex = Math.floor(Math.random() * charset.length);
+		password += charset.charAt(randomIndex);
+	}
+
+	return password;
+}
+
+// Generate an 8-character password
+// const password = generatePassword(8);
+// console.log("Generated Password:", password);
+
+module.exports = generatePassword;
diff --git a/src/utils/helper/transactionNumberGenrator.helper.js b/src/utils/helper/transactionNumberGenrator.helper.js
new file mode 100644
index 0000000..3cfb4ec
--- /dev/null
+++ b/src/utils/helper/transactionNumberGenrator.helper.js
@@ -0,0 +1,57 @@
+const moment = require('moment');
+
+class TransactionNumberGenerator {
+	constructor() {
+		this.timestampMap = new Map();
+		this.lock = { isLocked: false };
+	}
+
+	_acquireLock() {
+		while (this.lock.isLocked) {
+			/* Busy wait */
+		}
+		this.lock.isLocked = true;
+	}
+
+	_releaseLock() {
+		this.lock.isLocked = false;
+	}
+
+	// Convert date and time to Unix timestamp, handling 'YYYY-MM-DD' and 'YYYY-MM-DD HH:mm:ss'
+	_getUnixTimestamp(dateTime) {
+		if (dateTime instanceof Date) {
+			// Convert Date object to 'YYYY-MM-DD HH:mm:ss'
+			dateTime = moment(dateTime).format('YYYY-MM-DD HH:mm:ss');
+		}
+
+		// Determine whether the input includes time
+		const format = dateTime.includes(' ')
+			? 'YYYY-MM-DD HH:mm:ss'
+			: 'YYYY-MM-DD';
+
+		// Parse based on the format and return Unix timestamp
+		return moment(dateTime, format).unix();
+	}
+
+	generateUniqueTransactionNumber(dateTime = new Date()) {
+		this._acquireLock();
+
+		const timestamp = this._getUnixTimestamp(dateTime);
+		if (!this.timestampMap.has(timestamp)) {
+			this.timestampMap.set(timestamp, 0);
+		}
+		let counter = this.timestampMap.get(timestamp) + 1;
+		this.timestampMap.set(timestamp, counter);
+
+		this._releaseLock();
+
+		// Create unique number with timestamp and counter
+		const uniqueNumber = ((timestamp % 10000000000) * 1000 + counter)
+			.toString()
+			.padStart(11, '0');
+
+		return uniqueNumber;
+	}
+}
+
+module.exports = TransactionNumberGenerator;
diff --git a/src/utils/helper/uniqueNumberGeneratorInvestor.helper.js b/src/utils/helper/uniqueNumberGeneratorInvestor.helper.js
new file mode 100644
index 0000000..617bdf7
--- /dev/null
+++ b/src/utils/helper/uniqueNumberGeneratorInvestor.helper.js
@@ -0,0 +1,30 @@
+class uniqueNumberGeneratorInvestor {
+	constructor(existingNumbers) {
+		this.existingNumbers = existingNumbers; // Store existing numbers
+		this.currentYear = new Date().getFullYear().toString().slice(-2); // Get last two digits of the current year
+	}
+
+	generate() {
+		let uniqueNumber;
+		let attempts = 0; // Track the number of attempts to find a unique number
+
+		while (attempts < 10000) {
+			// Limit attempts to avoid infinite loops
+			const randomPart = Math.floor(Math.random() * 100000); // Generate a random number
+			uniqueNumber = this.currentYear + randomPart.toString().padStart(5, '0'); // Create the unique number
+
+			// Check if the generated number is unique
+			if (!this.existingNumbers.includes(uniqueNumber)) {
+				this.existingNumbers.push(uniqueNumber); // Add to existing numbers to avoid future collisions
+				return uniqueNumber; // Return the unique number found
+			}
+			attempts++; // Increment attempts
+		}
+
+		throw new Error(
+			'Unable to generate a unique number after 10,000 attempts.'
+		); // Error if unable to generate
+	}
+}
+
+module.exports = uniqueNumberGeneratorInvestor;
diff --git a/src/validation/addParticipant.validation.js b/src/validation/addParticipant.validation.js
new file mode 100644
index 0000000..ee58fd5
--- /dev/null
+++ b/src/validation/addParticipant.validation.js
@@ -0,0 +1,12 @@
+const yup = require('yup');
+
+const addParticipant = yup.object().shape({
+    newParticipantId: yup.number().required(),
+    chatId: yup.string().required(),
+});
+const removeParticipant = yup.object().shape({
+    participantId: yup.number().required(),
+    chatId: yup.string().required(),   
+});
+
+module.exports = { addParticipant, removeParticipant };
diff --git a/src/validation/chat.validation.js b/src/validation/chat.validation.js
new file mode 100644
index 0000000..a16d708
--- /dev/null
+++ b/src/validation/chat.validation.js
@@ -0,0 +1,42 @@
+const yup = require('yup');
+
+const chat = yup.object().shape({
+    receiver_xid: yup.number().required(),
+    chat_name: yup.string().required(),
+    is_group: yup.boolean().required(),
+    group_type: yup.string().optional(),
+    max_participants: yup.number().optional(),
+    description: yup.string().optional(),
+    //   profile_photo: yup
+    //     .string()
+    //     .of(
+    //       yup.mixed().test("isFile", "Invalid file format", (value) => {
+    //         if (!value) return true; // No attachment provided is allowed.
+    //         return isValidFileSize(value); // Implement custom validation for file size here.
+    //       })
+    //     )
+    //     .default([])
+    //     .optional()
+    //     .notRequired(),
+});
+
+const message = yup.object().shape({
+    chat_xid: yup.number().required(),
+    message: yup.string().max(1000).optional(),
+    message_type: yup.string().optional(),
+    sender_xid: yup.number().optional(),
+    receiver_xid: yup.number().optional(),
+    // attachment: yup
+    //     .array()
+    //     .of(
+    //         yup.mixed().test("isFile", "Invalid file format", (value) => {
+    //             if (!value) return true; // No attachment provided is allowed.
+    //             return isValidFileSize(value); // Implement custom validation for file size here.
+    //         })
+    //     )
+    //     .default([])
+    //     .optional()
+    //     .notRequired(),
+});
+
+module.exports = { chat, message };
diff --git a/src/validation/index.js b/src/validation/index.js
new file mode 100644
index 0000000..42bb243
--- /dev/null
+++ b/src/validation/index.js
@@ -0,0 +1,4 @@
+module.exports = {
+    chatValidations: require("./chat.validation"),
+    addParticipantsValidations: require("./addParticipant.validation"),
+}
\ No newline at end of file