API

npm init -y

npm install express swagger-jsdoc swagger-ui-express --save

const express = require('express');
const swaggerJsDoc = require('swagger-jsdoc');
const swaggerUi = require('swagger-ui-express');

const app = express();
app.use(express.json());

// การตั้งค่า Swagger
const swaggerOptions = {
  swaggerDefinition: {
    openapi: '3.0.0',
    info: {
      title: 'IoT Device API',
      version: '1.0.0',
      description: 'API สำหรับจัดการข้อมูล IoT Device',
    },
    servers: [
      {
        url: 'http://localhost:3000',
      },
    ],
  },
  apis: ['./app.js'],
};

const swaggerDocs = swaggerJsDoc(swaggerOptions);
app.use('/docs', swaggerUi.serve, swaggerUi.setup(swaggerDocs));

// ข้อมูลตัวอย่างสำหรับ IoT Device
let devices = [
  { id: 1, name: 'Temperature Sensor', type: 'sensor', status: 'active' },
  { id: 2, name: 'Humidity Sensor', type: 'sensor', status: 'inactive' },
];

/**
 * @swagger
 * /devices:
 *   get:
 *     summary: รับข้อมูล IoT Devices ทั้งหมด
 *     responses:
 *       200:
 *         description: สำเร็จ
 *         content:
 *           application/json:
 *             schema:
 *               type: array
 *               items:
 *                 type: object
 *                 properties:
 *                   id:
 *                     type: integer
 *                   name:
 *                     type: string
 *                   type:
 *                     type: string
 *                   status:
 *                     type: string
 */
app.get('/devices', (req, res) => {
  res.json(devices);
});

/**
 * @swagger
 * /devices/{id}:
 *   get:
 *     summary: รับข้อมูล IoT Device โดยใช้ ID
 *     parameters:
 *       - in: path
 *         name: id
 *         required: true
 *         schema:
 *           type: integer
 *         description: ID ของ IoT Device
 *     responses:
 *       200:
 *         description: สำเร็จ
 *         content:
 *           application/json:
 *             schema:
 *               type: object
 *               properties:
 *                 id:
 *                   type: integer
 *                 name:
 *                   type: string
 *                 type:
 *                   type: string
 *                 status:
 *                   type: string
 *       404:
 *         description: ไม่พบอุปกรณ์
 */
app.get('/devices/:id', (req, res) => {
  const device = devices.find((d) => d.id === parseInt(req.params.id));
  if (!device) return res.status(404).send('ไม่พบอุปกรณ์');
  res.json(device);
});

/**
 * @swagger
 * /devices:
 *   post:
 *     summary: เพิ่ม IoT Device ใหม่
 *     requestBody:
 *       required: true
 *       content:
 *         application/json:
 *           schema:
 *             type: object
 *             properties:
 *               name:
 *                 type: string
 *               type:
 *                 type: string
 *               status:
 *                 type: string
 *     responses:
 *       201:
 *         description: สร้างอุปกรณ์ใหม่สำเร็จ
 */
app.post('/devices', (req, res) => {
  const newDevice = {
    id: devices.length + 1,
    name: req.body.name,
    type: req.body.type,
    status: req.body.status,
  };
  devices.push(newDevice);
  res.status(201).json(newDevice);
});

/**
 * @swagger
 * /devices/{id}:
 *   put:
 *     summary: แก้ไขข้อมูล IoT Device โดยใช้ ID
 *     parameters:
 *       - in: path
 *         name: id
 *         required: true
 *         schema:
 *           type: integer
 *         description: ID ของ IoT Device
 *     requestBody:
 *       required: true
 *       content:
 *         application/json:
 *           schema:
 *             type: object
 *             properties:
 *               name:
 *                 type: string
 *               type:
 *                 type: string
 *               status:
 *                 type: string
 *     responses:
 *       200:
 *         description: แก้ไขข้อมูลสำเร็จ
 *       404:
 *         description: ไม่พบอุปกรณ์
 */
app.put('/devices/:id', (req, res) => {
  const device = devices.find((d) => d.id === parseInt(req.params.id));
  if (!device) return res.status(404).send('ไม่พบอุปกรณ์');

  device.name = req.body.name;
  device.type = req.body.type;
  device.status = req.body.status;

  res.json(device);
});

/**
 * @swagger
 * /devices/{id}:
 *   delete:
 *     summary: ลบ IoT Device โดยใช้ ID
 *     parameters:
 *       - in: path
 *         name: id
 *         required: true
 *         schema:
 *           type: integer
 *         description: ID ของ IoT Device
 *     responses:
 *       200:
 *         description: ลบอุปกรณ์สำเร็จ
 *       404:
 *         description: ไม่พบอุปกรณ์
 */
app.delete('/devices/:id', (req, res) => {
  const deviceIndex = devices.findIndex((d) => d.id === parseInt(req.params.id));
  if (deviceIndex === -1) return res.status(404).send('ไม่พบอุปกรณ์');

  devices.splice(deviceIndex, 1);
  res.send('ลบอุปกรณ์สำเร็จ');
});

// เริ่มเซิร์ฟเวอร์
const PORT = process.env.PORT || 3000;
app.listen(PORT, () => console.log(`Server is running on port ${PORT}`));

node app.js