fixed crash on wrong login password for existing user, update docker-compose.yaml

Dockerfile

@@ -31,8 +31,6 @@ USER node
 # Copy the rest of the source files into the image.
 COPY . .
 
-CMD npm i
-
 # Expose the port that the application listens on.
 EXPOSE ${APP_PORT}
 

docker-compose.yaml

@@ -13,7 +13,7 @@ services:
       SESSION_SECRET: ${SESSION_SECRET}
       JWT_SECRET: ${JWT_SECRET}
     ports:
-      - "3000:3000"
+      - ${APP_PORT}:${APP_PORT}
     depends_on:
       - db
 

index.js

@@ -10,10 +10,8 @@ const { initializeSocket } = require('./backend/socket.js');
 
 const bcrypt = require('bcrypt');
 const saltRounds = 10;
-const { Server } = require('socket.io');
 const { createServer } = require('node:http');
 const server = createServer(app);
-const io = initializeSocket(server);
 const jwt = require('jsonwebtoken');
 const jwtSecret = process.env.JWT_SECRET;
 
@@ -163,6 +161,7 @@ async function loginUser(req, res) {
                 const match = await bcrypt.compare(password, result.rows[0].password);
                 if (!match) {
                     res.send('Incorrect Username or Password!');
+                    return;
                 }
                     const token = jwt.sign({ username }, jwtSecret, {
                         expiresIn: '30d' // token expires in 30 days