Refactor app shutdown process to use async/await for disconnecting se…

…rvices and improve logging level in logger configuration

backend/src/app.ts

@@ -52,14 +52,10 @@ class App {
     }
   }
 
-  public stop() {
-    whyIsNodeRunning()
-    this.database.disconnect();
-    this.github.disconnect();
-    this.eListener?.close(() => {
-      logger.info('Server closed');
-      process.exit(0);
-    });
+  public async stop() {
+    await new Promise(resolve => this.eListener?.close(resolve));
+    await this.database.disconnect();
+    await this.github.disconnect();
   }
 
   private setupExpress() {
@@ -78,15 +74,17 @@ class App {
     const __dirname = dirname(__filename);
     const frontendPath = path.resolve(__dirname, '../../frontend/dist/github-value/browser');
     this.e.use(express.static(frontendPath));
-    this.e.get('*', rateLimit({
-      windowMs: 15 * 60 * 1000, max: 5000,
-    }), (_, res) => res.sendFile(path.join(frontendPath, 'index.html')));
+    this.e.get(
+      '*',
+      rateLimit({
+        windowMs: 15 * 60 * 1000, max: 5000,
+      }),
+      (_, res) => res.sendFile(path.join(frontendPath, 'index.html'))
+    );
 
-    const listener = this.e.listen(this.port, () => {
-      const address = listener.address() as AddressInfo;
-      logger.info(`Server is running at http://${address.address === '::' ? 'localhost' : address.address}:${address.port} 🚀`);
-    });
-    this.eListener = listener;
+    this.eListener = this.e.listen(this.port, () => {
+      logger.info(`Server is running 🚀`);
+    });;
   }
 
   private initializeSettings() {
@@ -162,9 +160,10 @@ logger.info('App started');
 export default app;
 
 ['SIGTERM', 'SIGINT', 'SIGQUIT'].forEach(signal => {
-  process.on(signal, () => {
+  process.on(signal, async () => {
     logger.info(`Received ${signal}. Stopping the app...`);
-    app.stop();
-    process.exit(signal === 'uncaughtException' ? 1 : 0);
+    await app.stop();
+    whyIsNodeRunning()
+    process.exit(0);
   });
 });

backend/src/database.ts

@@ -101,9 +101,9 @@ class Database {
     }
   }
 
-  disconnect() {
-    this.sequelize?.connectionManager.close();
-    this.sequelize?.close();
+  async disconnect() {
+    await this.sequelize?.connectionManager.close();
+    await this.sequelize?.close();
   }
 
   initializeModels(sequelize: Sequelize) {

backend/src/services/logger.ts

@@ -33,7 +33,7 @@ const logger = bunyan.createLogger({
   },
   streams: [
     {
-      level: 'info',
+      level: 'debug',
       stream: process.stdout
     },
     {