Custom port supported

src/main.ts

@@ -1,8 +1,10 @@
 import { NestFactory } from '@nestjs/core';
 import { AppModule } from './app.module';
 
+process.env['NODE_TLS_REJECT_UNAUTHORIZED'] = "0";
+
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
-  await app.listen(3000);
+  await app.listen(process.env['PORT'] || 3000);
 }
 bootstrap();