added mysql database for storing data every second

This commit is contained in:
kicap1992 2024-05-30 11:49:43 +08:00
parent be29a44b9e
commit d00228867a
7 changed files with 485 additions and 14 deletions

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conn.js Executable file
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@ -0,0 +1,22 @@
const mysql = require('mysql');
const dotenv = require('dotenv');
dotenv.config();
// Connect to the MySQL database
const connection = mysql.createConnection({
host: process.env.DB_HOST,
user: process.env.DB_USER,
password: process.env.DB_PASS,
database: process.env.DB_NAME
});
// connection.connect((err) => {
// if (err) {
// console.error('Error connecting to MySQL database: ' + err.stack);
// return;
// }
// console.log('Connected to MySQL database as id ' + connection.threadId);
// })
module.exports = {connection}

193
index.js
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@ -1,31 +1,198 @@
const express = require('express'); const express = require('express');
const bodyParser = require('body-parser'); const http = require('http');
const cors = require('cors');
const dotenv = require('dotenv');
const socket = require('./socket');
const app = express(); const app = express();
const port = 3001; const server = http.createServer(app);
const io = socket.init(server);
const iosend = socket.getIO();
const conn = require('./conn.js');
const connection = conn.connection;
// Parse JSON bodies dotenv.config();
app.use(bodyParser.json());
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
// app.use(fileUpload());
app.options('*', cors());
app.use(cors());
function timeStringToDate(timeStr) {
const [hours, minutes, seconds] = timeStr.split(':').map(Number);
const date = new Date();
date.setHours(hours, minutes, seconds, 0);
return date;
}
// Handle POST requests to '/post' // Handle POST requests to '/post'
app.post('/post', (req, res) => { app.post('/', async (req, res) => {
// Access the POST data sent in the request body // Access the POST data sent in the request body
const postData = req.body; var postData = req.body;
// Process the received data const query_search = 'Select * from tb_data where fase=?';
const result_search = await new Promise((resolve, reject) => {
connection.query(query_search, [postData.fase], (err, result) => {
if (err) {
reject(err);
} else {
resolve(result);
}
});
})
var now = new Date();
var hours = now.getHours();
var minutes = now.getMinutes();
var seconds = now.getSeconds();
// Pad single digits with leading zeros
hours = hours < 10 ? '0' + hours : hours;
minutes = minutes < 10 ? '0' + minutes : minutes;
seconds = seconds < 10 ? '0' + seconds : seconds;
// change the time to 24 h format with no AM/PM . example 12:00:01, li
time = hours + ':' + minutes + ':' + seconds;
// if time only 12:00 add :00
// console.log(result_search);
if (result_search.length > 0) {
// get the last data
const data_seach = result_search[result_search.length - 1];
const time_last = data_seach.time;
console.log("ini current time: " + time)
// console.log("ini last time: " + time_last)
const converted_time_last = timeStringToDate(time_last);
const converted_time = timeStringToDate(time);
console.log('Converted time:', converted_time);
console.log('Converted time last:', converted_time_last);
// Calculate the difference in seconds
const differenceInSeconds = (converted_time - converted_time_last) / 1000;
console.log('Difference in seconds:', differenceInSeconds);
// Check if the difference is exactly 30 seconds
// const isThirtySecondsApart = differenceInSeconds === 30;
// check if time_last is 30 second ago from time
// if (differenceInSeconds < 10800) {
if (differenceInSeconds < 3600) {
console.log('data is not new');
postData.time = time;
console.log('Received data:', postData); console.log('Received data:', postData);
iosend.emit('datanya', postData);
// Respond with a simple message
res.send('Received your POST request!');
return;
}
const query_insert = 'INSERT INTO tb_data (fase, voltage, current, power, energy, pf, time) VALUES (?, ?, ?, ?, ?, ?, ?)';
const result_insert = await new Promise((resolve, reject) => {
connection.query(query_insert, [postData.fase, postData.voltage, postData.current, postData.power, postData.energy, postData.pf, time], (err, result) => {
if (err) {
reject(err);
} else {
resolve(result);
}
});
})
} else {
const query_insert = 'INSERT INTO tb_data (fase, voltage, current, power, energy, pf, time) VALUES (?, ?, ?, ?, ?, ?, ?)';
const result_insert = await new Promise((resolve, reject) => {
connection.query(query_insert, [postData.fase, postData.voltage, postData.current, postData.power, postData.energy, postData.pf, time], (err, result) => {
if (err) {
reject(err);
} else {
resolve(result);
}
});
})
}
// Process the received data
// get timge by hh:mm
postData.time = time;
console.log('Received data:', postData);
iosend.emit('datanya', postData);
// Respond with a simple message // Respond with a simple message
res.send('Received your POST request!'); res.send('Received your POST request!');
}); });
app.get('/get', (req, res) => { app.get('/', async (req, res) => {
// Respond with a simple message // only show 10 last data
console.log('Received GET request'); const query_fase_r = 'Select * from tb_data where fase="Fase R" order by id desc limit 10';
res.status(200).send({ message: 'Hello World!' }); const query_fase_s = 'Select * from tb_data where fase="Fase S" order by id desc limit 10';
const query_fase_t = 'Select * from tb_data where fase="Fase T" order by id desc limit 10';
const result_fase_r = await new Promise((resolve, reject) => {
connection.query(query_fase_r, (err, result) => {
if (err) {
reject(err);
} else {
resolve(result);
}
});
})
const result_fase_s = await new Promise((resolve, reject) => {
connection.query(query_fase_s, (err, result) => {
if (err) {
reject(err);
} else {
resolve(result);
}
});
})
const result_fase_t =await new Promise((resolve, reject) => {
connection.query(query_fase_t, (err, result) => {
if (err) {
reject(err);
} else {
resolve(result);
}
})
}) })
return res.json({ "result_fase_r": result_fase_r, "result_fase_s": result_fase_s, "result_fase_t": result_fase_t });
})
// app error handler
app.use((err, req, res, next) => {
console.log(err);
res.status(500).send('Something broke!');
});
io.on('connection', (socket) => {
let userID = socket.id;
console.log('A user connected: ' + userID);
socket.on('scan_dia', (data) => {
console.log('Received scan_dia event: ' + data);
});
socket.on('disconnect', () => {
console.log('User disconnected: ' + userID);
});
});
module.exports = {
app,
server,
io
};
const port = process.env.PORT || 3001;
// Start the server // Start the server
app.listen(port, () => { server.listen(port, () => {
console.log(`Server is running on http://localhost:${port}`); console.log(`Server is running on http://localhost:${port}`);
}); });

252
package-lock.json generated
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@ -9,9 +9,37 @@
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@ -1246,6 +1476,26 @@
"node": ">= 0.8" "node": ">= 0.8"
} }
}, },
"node_modules/ws": {
"version": "8.11.0",
"resolved": "https://registry.npmjs.org/ws/-/ws-8.11.0.tgz",
"integrity": "sha512-HPG3wQd9sNQoT9xHyNCXoDUa+Xw/VevmY9FoHyQ+g+rrMn4j6FB4np7Z0OhdTgjx6MgQLK7jwSy1YecU1+4Asg==",
"engines": {
"node": ">=10.0.0"
},
"peerDependencies": {
"bufferutil": "^4.0.1",
"utf-8-validate": "^5.0.2"
},
"peerDependenciesMeta": {
"bufferutil": {
"optional": true
},
"utf-8-validate": {
"optional": true
}
}
},
"node_modules/yallist": { "node_modules/yallist": {
"version": "4.0.0", "version": "4.0.0",
"resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz", "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",

View File

@ -11,8 +11,11 @@
"author": "kicap", "author": "kicap",
"license": "ISC", "license": "ISC",
"dependencies": { "dependencies": {
"dotenv": "^16.4.5",
"express": "^4.19.2", "express": "^4.19.2",
"express-form-data": "^2.0.23", "express-form-data": "^2.0.23",
"nodemon": "^3.1.0" "mysql": "^2.18.1",
"nodemon": "^3.1.0",
"socket.io": "^4.7.5"
} }
} }

29
socket.js Executable file
View File

@ -0,0 +1,29 @@
const socketio = require('socket.io');
// const socketio_client = require('socket.io-client');
const dotenv = require('dotenv');
dotenv.config();
// const socket_client = socketio_client("http://localhost:"+process.env.PORT);
let io;
function init(server) {
io = socketio(server);
return io;
}
function getIO() {
if (!io) {
throw new Error('Socket.io not initialized');
}
return io;
}
module.exports = {
init,
getIO,
// socket_client
};