chore: adding access log

apps/vc-api/src/app.module.ts

@@ -15,7 +15,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-import { DynamicModule, Module } from '@nestjs/common';
+import { DynamicModule, MiddlewareConsumer, Module } from '@nestjs/common';
 import { ConfigModule } from '@nestjs/config';
 import { KeyModule } from './key/key.module';
 import { DidModule } from './did/did.module';
@@ -25,6 +25,7 @@ import { ServeStaticModule } from '@nestjs/serve-static';
 import { join } from 'path';
 import { SeederModule } from './seeder/seeder.module';
 import { envVarsValidationSchema } from './config/env-vars-validation-schema';
+import { HttpLoggerMiddleware } from './middlewares';
 
 let config: DynamicModule;
 
@@ -61,4 +62,10 @@ try {
     SeederModule
   ]
 })
-export class AppModule {}
+export class AppModule {
+  configure(consumer: MiddlewareConsumer) {
+    consumer
+      .apply(HttpLoggerMiddleware) //, HttpsRedirectMiddleware) - Disabling for now, doesn't work as expected
+      .forRoutes('*');
+  }
+}

apps/vc-api/src/middlewares/http-logger.middleware.ts

@@ -0,0 +1,47 @@
+import { Injectable, Logger, NestMiddleware } from '@nestjs/common';
+import { NextFunction, Request, Response } from 'express';
+
+@Injectable()
+export class HttpLoggerMiddleware implements NestMiddleware {
+  private readonly logger = new Logger(HttpLoggerMiddleware.name, { timestamp: true });
+
+  use(req: Request, res: Response, next: NextFunction) {
+    const requestStarted = Date.now();
+    const { method } = req;
+    const url = req.originalUrl;
+
+    let finished = false;
+
+    res.on('finish', () => {
+      const message = `${res.statusCode} ${res.statusMessage} | [${method}] ${url} - ${
+        Date.now() - requestStarted
+      }ms`;
+
+      finished = true;
+
+      if (this.is4xxErrorCode(res.statusCode)) {
+        this.logger.warn(message);
+      } else if (this.is5xxErrorCode(res.statusCode)) {
+        this.logger.error(message);
+      } else {
+        this.logger.log(message);
+      }
+    });
+
+    res.on('close', () => {
+      if (!finished) {
+        this.logger.warn(`connection closed | [${method}] ${url} - ${Date.now() - requestStarted}ms`);
+      }
+    });
+
+    next();
+  }
+
+  is4xxErrorCode(statusCode: number): boolean {
+    return statusCode >= 400 && statusCode < 500;
+  }
+
+  is5xxErrorCode(statusCode: number): boolean {
+    return statusCode >= 500 && statusCode < 600;
+  }
+}

apps/vc-api/src/middlewares/index.ts

@@ -0,0 +1 @@
+export * from './http-logger.middleware';