swagger code fixed for server url

src/main.ts

@@ -4,6 +4,8 @@ import { SwaggerModule, DocumentBuilder } from '@nestjs/swagger';
 import { ConfigService } from '@nestjs/config';
 import helmet from 'helmet';
 import { AppModule } from './app.module';
+import { writeFileSync } from 'fs';
+import { join } from 'path';
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
@@ -12,12 +14,17 @@ async function bootstrap() {
   // Security
   app.use(helmet());
   app.enableCors({
-    origin: configService.get('CORS_ORIGIN', 'http://localhost:3000'),
+    origin: [
+      'http://localhost:3000',     // local Swagger UI
+      'https://editor.swagger.io', // Swagger Editor online
+    ],
+    methods: 'GET,HEAD,PUT,PATCH,POST,DELETE,OPTIONS',
     credentials: true,
   });
 
-  // Global prefix
-  app.setGlobalPrefix(configService.get('API_PREFIX', 'api/v1'));
+  // ✅ Global prefix
+  const globalPrefix = configService.get('API_PREFIX', 'api/v1');
+  app.setGlobalPrefix(globalPrefix);
 
   // Request logging middleware
   app.use((req, res, next) => {
@@ -36,6 +43,7 @@ async function bootstrap() {
       },
     }),
   );
+  const port = configService.get('PORT', 3000);
 
   // Swagger documentation (only in development)
   if (configService.get('NODE_ENV') !== 'production') {
@@ -44,13 +52,18 @@ async function bootstrap() {
       .setDescription('Professional NestJS serverless application with user CRUD and authentication')
       .setVersion(configService.get('API_VERSION', '1.0.0'))
       .addBearerAuth()
+      .addServer(`${process.env.SERVER_URL}/`, 'Local Server')
       .build();
 
     const document = SwaggerModule.createDocument(app, config);
     SwaggerModule.setup('api/docs', app, document);
+
+    const outputPath = join(process.cwd(), 'swagger.json');
+    writeFileSync(outputPath, JSON.stringify(document, null, 2), 'utf8');
+    console.log(`✅ Swagger JSON file generated at: ${outputPath}`);
   }
 
-  const port = configService.get('PORT', 3000);
+  // const port = configService.get('PORT', 3000);
   await app.listen(port);
 
   console.log(`🚀 Application is running on: http://localhost:${port}`);