first commit

src/app.ts

@@ -0,0 +1,53 @@
+import requestId from 'request-ip';
+import express, { Application, NextFunction, Request, Response } from "express";
+import config from "./config/config";
+import morgan from "./config/morgan";
+import path from 'path';
+import ApiError from './utils/helper/ApiError';
+import { errorConverter, errorHandler } from './middleware/error';
+import logger from './config/logger';
+import productRouter from "./routes/productRoutes";
+
+class App {
+    private app: Application;
+
+    constructor() {
+        this.app = express();
+        this.initializeMiddlewares();
+        this.initializeRoutes();
+        this.initializeErrorHandling();
+    }
+
+    private initializeMiddlewares(): void {
+        if (config.env !== "test") {
+            this.app.use(morgan.successHandler);
+            this.app.use(morgan.errorHandler);
+        }
+        this.app.use(requestId.mw());
+        this.app.use(express.json());
+        this.app.use(express.urlencoded({ extended: true }));
+        this.app.use("/public", express.static(path.join(__dirname, "../public")));
+    }
+
+    private initializeRoutes(): void {
+        this.app.use('/api', productRouter);
+        // Define our routes
+        this.app.use((req: Request, res: Response, next: NextFunction) => {
+            next(new ApiError(404, "Not found"));
+        })
+    }
+
+    private initializeErrorHandling(): void {
+        this.app.use(errorConverter);
+        this.app.use(errorHandler);
+    }
+
+    public listen(port: number): ReturnType<typeof this.app.listen> {
+       return this.app.listen(port, () => {
+            logger.info(`Server listening on port ${config.port}`);
+            logger.info(`Enviorment :- ${config.env}`);
+        })
+    }
+}
+
+export default new App();