code refactor and implement password hashing

backend/db.js

@@ -39,7 +39,7 @@ async function insertUser(username, password){
 
     try {
         const signupData = await client.query(query, values);
-        console.log('Account created:', signupData.rows[0]);
+        console.log('Account created:', signupData.rows[0].username);
     } catch (err) {
         console.error('Error inserting data:', err.stack);
     }

index.js

@@ -1,13 +1,13 @@
 const express = require('express');
 const session = require('express-session');
 const path = require('path');
-const { client } = require('./app/db');
+const { client } = require('./backend/db');
 const port = 3000
 const app = express()
-const { insertUser, isUserExists, loginUser } = require('./app/db');
-const crypto = require('crypto');
-const algorithm = 'aes-256-cbc';
-const key = process.env.ENCRYPT_KEY;
+const { insertUser, isUserExists, loginUser } = require('./backend/db');
+const bcrypt = require('bcrypt');
+const {hash} = require("bcrypt");
+const saltRounds = 10;
 
 require('dotenv').config()
 
@@ -46,9 +46,22 @@ app.post('/auth/signup', async (req, res) => {
             res.status(500).send('User already exists!');
             return;
         }
-         // put user data to database
-        await insertUser(username, password);
-        res.status(200).send("Account successfully created <a href=/login>Login screen</a>");
+
+        // hash password
+        bcrypt.genSalt(saltRounds, function(err, salt) {
+            if(err) {
+                console.log('Error generating salt:', err);
+                res.status(500).send('Error generating salt');
+            }
+            bcrypt.hash(password, salt, function(err, hash) {
+                if(err) {
+                    console.log('Error hashing password:', err);
+                    res.status(500).send('Error hashing password');
+                }
+                insertUser(username, hash);
+                res.status(200).send("Account successfully created <a href=/login>Login screen</a>");
+            });
+        });
     } catch (err) {
         console.error('Error inserting data:', err);
         res.status(500).send('Error inserting data');
@@ -57,18 +70,19 @@ app.post('/auth/signup', async (req, res) => {
 
 // serving the login page
 app.get('/login', (req, res) => {
-    res.sendFile(path.join(__dirname, '/public/routes/login.html'));
+    res.sendFile(path.join(__dirname, '/frontend/routes/login.html'));
 })
 
 // serving the signup page
 app.get('/signup', (req, res) => {
-    res.sendFile(path.join(__dirname, '/public/routes/signup.html'));
+    res.sendFile(path.join(__dirname, '/frontend/routes/signup.html'));
 })
 
 app.get('/', (req, res) => {
-    res.sendFile(path.join(__dirname, '/public/routes/index.html'));
+    res.sendFile(path.join(__dirname, '/frontend/routes/index.html'));
 })
 // run server
 app.listen(port, () => {
     console.log(`Example app listening on port ${port}`)
 })
+

package.json

@@ -8,7 +8,7 @@
   },
   "private": true,
   "dependencies": {
-    "crypto": "^1.0.1",
+    "bcrypt": "^5.1.1",
     "dotenv": "^16.4.5",
     "express": "^4.19.2",
     "express-session": "^1.18.0",