NestJS 수정2..

src/main.ts

@@ -1,12 +1,37 @@
 //참고 : https://wikidocs.net/book/7059
 
+import { HttpException, HttpStatus } from '@nestjs/common'
 import { NestFactory } from '@nestjs/core'
 import { AppModule } from './app.module'
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule)
+  //Enable All CORS Requests : https://docs.nestjs.com/security/cors
+  app.enableCors({
+    origin: (origin, callback) => {
+      //origin URL이 허용된 경우 또는 orgin자체가 없는 경우(postman tool) 통과
+      if (process.env.CORS_ALLOW_ORIGINS.indexOf(origin) !== -1 || !origin) {
+        console.log('Allowed Origin URL: ' + origin)
+        callback(null, true)
+      } else {
+        callback(
+          new HttpException(
+            {
+              status: HttpStatus.FORBIDDEN,
+              error: origin + '에서는 접근이 허용되지 않습니다.'
+            },
+            HttpStatus.FORBIDDEN
+          )
+        )
+      }
+    },
+    methods: process.env.CORS_ALLOW_METHOD,
+    credentials: true
+  })
   await app.listen(3000, function () {
-    console.log('listening on port 3000')
+    console.log(
+      '[CORS-enabled->npm install -g webpack webpack-cli] web server listening on port 3000'
+    )
   })
 }
 bootstrap()