API's: employee onboarding, authentication through JWT

Co-authored-by: Copilot <copilot@github.com>

employee_api/.gitignore

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+.env
+
+# Node dependencies
+node_modules/
+
+# Logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+*.log
+
+# Environment files
+.env.*
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+.envrc
+
+# OS files
+.DS_Store
+
+# Build / coverage
+dist/
+build/
+coverage/
+
+# Databases
+*.sqlite
+*.sqlite3
+*.db
+dump.sql
+
+# Keys and certificates
+*.pem
+*.key
+*.crt
+*.p12
+
+# IDE / editor
+.vscode/
+.idea/
+
+# Secrets and credentials
+secrets.env
+credentials.json
+
+# Temporary
+tmp/
+temp/

employee_api/db.js

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+const { Pool } = require('pg');
+require('dotenv').config();
+const pool = new Pool({
+    host: process.env.PG_HOST,
+    port: process.env.PG_PORT,
+    user: process.env.PG_USER,
+    password: process.env.PG_PASS,
+    database: process.env.PG_DB,
+    max: 10,
+    idleTimeoutMillis: 30000
+});
+
+pool.query('SELECT 1')
+  .then(() => console.log('PostgreSQL connection OK'))
+  .catch(err => {
+    console.error('PostgreSQL connection FAILED');
+    console.error(err);
+    process.exit(1);
+  });
+
+module.exports = {
+  query: (text, params) => pool.query(text, params),
+  pool
+};

employee_api/index.js

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+const express = require('express');
+const bcrypt = require('bcryptjs');
+const db = require('./db');
+require('dotenv').config();
+
+const app = express();
+app.use(express.json());
+
+// Employee onboarding
+app.post('/createemployee', async (req, res) => {
+    try {
+        const {firstname, lastname, job, password} = req.body;
+        if (!firstname || !lastname || !job || !password) return res.status(400).json({error: 'Firstname, Lastname, Job title and password are required'});
+
+        const resultCreateEmployee = await db.query('INSERT INTO workers.employees (firstname, lastname, job) VALUES ($1, $2, $3) RETURNING id', [firstname, lastname, job]);
+        const newEmployee = resultCreateEmployee.rows[0];
+        const encryptedpassword = await bcrypt.hash(password, 12);
+        const resultCreateUser = await db.query('INSERT INTO workers.users (employee, password) VALUES ($1, $2) RETURNING usercode', [newEmployee.id, encryptedpassword]);
+        const newUser = resultCreateUser.rows[0];
+        return res.status(201).json({ employee: firstname, code: newUser.usercoden });
+    }
+    catch (err) {
+    console.error(err);
+    res.status(500).json({ error: 'internal_error' });
+  }
+})
+
+app.get('/health', async (_req, res, _next) => {
+    try {
+    return res.status(200).json({endpoint: 'reachable'})
+    }
+    catch (err) {
+        console.error(err);
+        res.status(500).json({endpoint: 'unreachable'})
+    }
+})
+
+const PORT = process.env.PORT || 4000;
+app.listen(PORT, () => console.log(`Auth API listening on ${PORT}`));
+
+module.exports = app;

employee_api/package.json

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+{
+  "name": "employee_api",
+  "version": "1.0.0",
+  "description": "",
+  "license": "ISC",
+  "author": "",
+  "type": "commonjs",
+  "main": "index.js",
+  "scripts": {
+    "start": "node index.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "dependencies": {
+    "bcrypt": "^6.0.0",
+    "bcryptjs": "^3.0.3",
+    "dotenv": "^17.4.2",
+    "express": "^5.2.1",
+    "jsonwebtoken": "^9.0.3",
+    "pg": "^8.20.0"
+  }
+}