Update main.ts

Author: dbruidb

src/main.ts

@@ -7,7 +7,7 @@ async function bootstrap() {
   const app = await NestFactory.create(AppModule);
   app.enableCors();
   const configService = app.get(ConfigService);
-  const port = configService.get<number>(3000);
+  const port = configService.get<number>('3000');
   await app.listen(port);
 
 }