added user and role APIs and fixed some items that were missing (#3)

Reviewed-on: #3
Co-authored-by: Joseph Nelson <joseph.nelson4456@gmail.com>
Co-committed-by: Joseph Nelson <joseph.nelson4456@gmail.com>

src/routes/roles/index.js

@@ -0,0 +1,93 @@
+import express from 'express'
+import { database } from '../../config'
+
+const { Pool } = require('pg')
+
+const router = express.Router()
+
+// Create a connection pool to the database
+const pool = new Pool(database)
+
+// Create a new role
+router.post('/', async (req, res) => {
+	const { name } = req.body
+	const client = await pool.connect()
+
+	try {
+		await client.query('BEGIN')
+		const result = await client.query(
+			'INSERT INTO roles (name, created_at, updated_at) VALUES ($1, NOW(), NOW()) RETURNING *',
+			[name]
+		)
+		await client.query('COMMIT')
+		res.status(201).json(result.rows[0])
+	} catch (err) {
+		await client.query('ROLLBACK')
+		res.status(500).json({ error: err.message })
+	}
+})
+
+// Get all roles
+router.get('/', async (req, res) => {
+	try {
+		const result = await pool.query('SELECT * FROM roles')
+		res.json(result.rows)
+	} catch (err) {
+		res.status(500).json({ error: err.message })
+	}
+})
+
+// Get a single role by id
+router.get('/:id', async (req, res) => {
+	const { id } = req.params
+	try {
+		const result = await pool.query('SELECT * FROM roles WHERE id = $1', [id])
+		if (result.rows.length === 0)
+			return res.status(404).json({ error: 'Role not found' })
+		res.json(result.rows[0])
+	} catch (err) {
+		res.status(500).json({ error: err.message })
+	}
+})
+
+// Update a role by id
+router.put('/:id', async (req, res) => {
+	const { id } = req.params
+	const { name } = req.body
+	const client = await pool.connect()
+
+	try {
+		await client.query('BEGIN')
+		const result = await client.query(
+			'UPDATE roles SET name = $1, updated_at = NOW() WHERE id = $2 RETURNING *',
+			[name, id]
+		)
+		if (result.rows.length === 0)
+			return res.status(404).json({ error: 'Role not found' })
+		await client.query('COMMIT')
+		res.json(result.rows[0])
+	} catch (err) {
+		await client.query('ROLLBACK')
+		res.status(500).json({ error: err.message })
+	}
+})
+
+// Delete a role by id
+router.delete('/:id', async (req, res) => {
+	const { id } = req.params
+	const client = await pool.connect()
+
+	try {
+		await client.query('BEGIN')
+		const result = await client.query('DELETE FROM roles WHERE id = $1', [id])
+		if (result.rows.length === 0)
+			return res.status(404).json({ error: 'Role not found' })
+		await client.query('COMMIT')
+		res.json(result.rows[0])
+	} catch (err) {
+		await client.query('ROLLBACK')
+		res.status(500).json({ error: err.message })
+	}
+})
+
+export default router