[CHORE] nestjs logger 개선 #26

server/src/app.module.ts

@@ -1,4 +1,4 @@
-import { Module } from '@nestjs/common';
+import { MiddlewareConsumer, Module } from '@nestjs/common';
 import { TypeOrmModule } from '@nestjs/typeorm';
 import { MeetingModule } from './meeting/meeting.module';
 import { ConfigModule, ConfigService } from '@nestjs/config';
@@ -10,6 +10,7 @@ import { TransformInterceptor } from './common/interceptor/transform.interceptor
 import { NoticeModule } from './notice/notice.module';
 import { PostModule } from './post/post.module';
 import { CommentModule } from './comment/comment.module';
+import { LoggerMiddleware } from './common/middleware/logger.middleware';
 
 @Module({
   imports: [
@@ -46,4 +47,8 @@ import { CommentModule } from './comment/comment.module';
     },
   ],
 })
-export class AppModule {}
+export class AppModule {
+  configure(consumer: MiddlewareConsumer) {
+    consumer.apply(LoggerMiddleware).forRoutes('*');
+  }
+}

server/src/common/middleware/logger.middleware.ts

@@ -0,0 +1,31 @@
+import { Injectable, Logger, NestMiddleware } from '@nestjs/common';
+import { NextFunction, Request, Response } from 'express';
+
+@Injectable()
+export class LoggerMiddleware implements NestMiddleware {
+  private readonly logger = new Logger('HTTP');
+
+  use(request: Request, response: Response, next: NextFunction) {
+    const start = Date.now();
+
+    response.on('finish', () => {
+      const { method, originalUrl } = request;
+      const { statusCode, statusMessage } = response;
+      const duration = Date.now() - start;
+
+      const message = `[${duration}ms] ${method} ${originalUrl} ${statusCode} ${statusMessage}`;
+
+      if (statusCode >= 500) {
+        return this.logger.error(message);
+      }
+
+      if (statusCode >= 400) {
+        return this.logger.warn(message);
+      }
+
+      return this.logger.log(message);
+    });
+
+    next();
+  }
+}

server/src/main.ts

@@ -6,8 +6,12 @@ import { setupSwagger } from './common/utils/swagger';
 async function bootstrap() {
   const app = await NestFactory.create(AppModule, {
     cors: true,
-    bufferLogs: true,
+    logger:
+      process.env.NODE_ENV === 'production'
+        ? ['log', 'error', 'warn']
+        : ['log', 'error', 'warn', 'debug', 'verbose'],
   });
+
   setupSwagger(app);
   app.useGlobalPipes(
     new ValidationPipe({
@@ -23,4 +27,5 @@ async function bootstrap() {
   const port = process.env.PORT || 3000;
   await app.listen(port);
 }
+
 bootstrap();