Danial HB
137 lines
4.7 KiB
JavaScript
137 lines
4.7 KiB
JavaScript
const express = require('express');
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const mysql = require('mysql2');
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const cors = require('cors');
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const bodyParser = require('body-parser');
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require('dotenv').config();
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const app = express();
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app.use(cors());
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app.use(bodyParser.json());
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app.use(express.static(__dirname)); // Serve static files from current directory
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// MySQL Connection
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let db;
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function handleDisconnect() {
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const connectionString = process.env.DATABASE_URL || process.env.MYSQL_URL || process.env.MYSQL_PRIVATE_URL;
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db = connectionString
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? mysql.createConnection(connectionString)
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: mysql.createConnection({
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host: process.env.DB_HOST || 'localhost',
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user: process.env.DB_USER || 'root',
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password: process.env.DB_PASSWORD || '',
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database: process.env.DB_NAME || 'webgis_app',
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port: process.env.DB_PORT || 3306
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});
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db.connect(err => {
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if (err) {
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console.error('MySQL connection failed: ' + err.stack);
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setTimeout(handleDisconnect, 2000);
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} else {
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console.log('MySQL Connected...');
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}
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});
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db.on('error', err => {
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console.error('Database error:', err);
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if (err.code === 'PROTOCOL_CONNECTION_LOST') {
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handleDisconnect();
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} else {
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throw err;
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}
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});
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}
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handleDisconnect();
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// Route to save a Road
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app.post('/api/roads', (req, res) => {
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const { name, road_type, distance_meters, coordinates } = req.body;
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const query = 'INSERT INTO roads (name, road_type, distance_meters, coordinates) VALUES (?, ?, ?, ?)';
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db.query(query, [name, road_type, distance_meters, JSON.stringify(coordinates)], (err, result) => {
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if (err) return res.status(500).send(err);
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res.status(200).send({ message: 'Road saved successfully!', id: result.insertId });
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});
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});
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// Route to get all Roads
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app.get('/api/roads', (req, res) => {
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const query = 'SELECT * FROM roads';
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db.query(query, (err, results) => {
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if (err) return res.status(500).send(err);
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res.status(200).send(results);
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});
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});
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// Route to save Land
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app.post('/api/lands', (req, res) => {
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const { name, ownership_status, area_sq_meters, coordinates } = req.body;
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const query = 'INSERT INTO lands (name, ownership_status, area_sq_meters, coordinates) VALUES (?, ?, ?, ?)';
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db.query(query, [name, ownership_status, area_sq_meters, JSON.stringify(coordinates)], (err, result) => {
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if (err) return res.status(500).send(err);
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res.status(200).send({ message: 'Land saved successfully!', id: result.insertId });
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});
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});
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// Route to get all Lands
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app.get('/api/lands', (req, res) => {
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const query = 'SELECT * FROM lands';
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db.query(query, (err, results) => {
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if (err) return res.status(500).send(err);
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res.status(200).send(results);
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});
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});
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// Route to update a Road
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app.put('/api/roads/:id', (req, res) => {
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const { id } = req.params;
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const { name, road_type, distance_meters, coordinates } = req.body;
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const query = 'UPDATE roads SET name = ?, road_type = ?, distance_meters = ?, coordinates = ? WHERE id = ?';
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db.query(query, [name, road_type, distance_meters, JSON.stringify(coordinates), id], (err, result) => {
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if (err) return res.status(500).send(err);
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res.status(200).send({ message: 'Road updated successfully!' });
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});
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});
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// Route to delete a Road
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app.delete('/api/roads/:id', (req, res) => {
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const { id } = req.params;
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const query = 'DELETE FROM roads WHERE id = ?';
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db.query(query, [id], (err, result) => {
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if (err) return res.status(500).send(err);
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res.status(200).send({ message: 'Road deleted successfully!' });
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});
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});
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// Route to update a Land
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app.put('/api/lands/:id', (req, res) => {
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const { id } = req.params;
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const { name, ownership_status, area_sq_meters, coordinates } = req.body;
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const query = 'UPDATE lands SET name = ?, ownership_status = ?, area_sq_meters = ?, coordinates = ? WHERE id = ?';
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db.query(query, [name, ownership_status, area_sq_meters, JSON.stringify(coordinates), id], (err, result) => {
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if (err) return res.status(500).send(err);
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res.status(200).send({ message: 'Land updated successfully!' });
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});
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});
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// Route to delete a Land
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app.delete('/api/lands/:id', (req, res) => {
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const { id } = req.params;
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const query = 'DELETE FROM lands WHERE id = ?';
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db.query(query, [id], (err, result) => {
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if (err) return res.status(500).send(err);
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res.status(200).send({ message: 'Land deleted successfully!' });
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});
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});
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const PORT = process.env.PORT || 3000;
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app.listen(PORT, () => {
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console.log(`Server running on http://localhost:${PORT}`);
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}); |