feat: add logging

src/main.ts

@@ -1,23 +1,39 @@
-import { ValidationPipe } from '@nestjs/common';
+import { INestApplication, ValidationPipe } from '@nestjs/common';
 import { NestFactory } from '@nestjs/core';
 import cookieParser from 'cookie-parser';
 import { ConfigService } from '@nestjs/config';
 import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
+import { Logger } from 'nestjs-pino';
 import { AppModule } from './app.module';
 import { HttpExceptionFilter } from './common/filters/http-exception.filter';
+import { RequestLoggingMiddleware } from './common/logging/request-logging.middleware';
+import { StructuredLogger } from './common/logging/structured-logger.service';
 import { Environment } from './config/env.validation';
 import { shouldExposeSwagger } from './config/swagger.config';
 
-async function bootstrap() {
-  const app = await NestFactory.create(AppModule);
+export function configureApp(app: INestApplication): void {
   const config = app.get<ConfigService<Environment, true>>(ConfigService);
   const frontendOrigin = config.getOrThrow<string>('FRONTEND_ORIGIN');
 
-  app.enableCors({ origin: frontendOrigin, credentials: true });
+  app.useLogger(app.get(Logger));
+  app.enableCors({
+    origin: frontendOrigin,
+    credentials: true,
+    exposedHeaders: ['X-Request-ID'],
+  });
   app.setGlobalPrefix('api/v1');
   app.use(cookieParser());
+  const requestLogging = app.get(RequestLoggingMiddleware);
+  app.use(requestLogging.use.bind(requestLogging));
   app.useGlobalPipes(new ValidationPipe({ transform: true, whitelist: true }));
   app.useGlobalFilters(new HttpExceptionFilter());
+  app.enableShutdownHooks();
+}
+
+async function bootstrap() {
+  const app = await NestFactory.create(AppModule, { bufferLogs: true });
+  configureApp(app);
+  const config = app.get<ConfigService<Environment, true>>(ConfigService);
 
   if (shouldExposeSwagger(process.env['NODE_ENV'])) {
     const document = SwaggerModule.createDocument(
@@ -31,5 +47,9 @@ async function bootstrap() {
   }
 
   await app.listen(config.getOrThrow('PORT'));
+  app.get(StructuredLogger).info('application.started', {
+    service: 'wealth-ledger-backend',
+    environment: process.env['NODE_ENV'] ?? 'development',
+  });
 }
-void bootstrap();
+if (require.main === module) void bootstrap();