Facing issue with mysql database with node js - mysql

Question

i have created express app with mysql database.
when i call mysql query it works fine and then i call my view. loading view take few minute(2-3 min) and app crashed with bellow error.
events.js:287
throw er; // Unhandled 'error' event
^
Error: read ECONNRESET
at TCP.onStreamRead (internal/stream_base_commons.js:205:27)
Emitted 'error' event on Connection instance at:
at Connection._handleProtocolError (C:\Users\AMW\Desktop\dishmize\dishmize\node_modules\mysql\lib\Connection.js:423:8)
at Protocol.emit (events.js:310:20)
at Protocol.EventEmitter.emit (domain.js:482:12)
at Protocol._delegateError (C:\Users\AMW\Desktop\dishmize\dishmize\node_modules\mysql\lib\protocol\Protocol.js:398:10)
at Protocol.handleNetworkError (C:\Users\AMW\Desktop\dishmize\dishmize\node_modules\mysql\lib\protocol\Protocol.js:371:10)
at Connection._handleNetworkError (C:\Users\AMW\Desktop\dishmize\dishmize\node_modules\mysql\lib\Connection.js:418:18)
at Socket.emit (events.js:310:20)
at Socket.EventEmitter.emit (domain.js:482:12)
at emitErrorNT (internal/streams/destroy.js:92:8)
at emitErrorAndCloseNT (internal/streams/destroy.js:60:3) {
errno: 'ECONNRESET',
code: 'ECONNRESET',
syscall: 'read',
fatal: true
}
[nodemon] app crashed - waiting for file changes before starting...
i already spend 8- 10 hours.
please help me to resolve this issue.
thanks
Update:
const options = {
user: config.get('MYSQL_USER'),
password: config.get('MYSQL_PASSWORD'),
database:config.get('DATABASE'),
host: config.get('HOST'),
port: 3306
}
const connection = mysql.createConnection(options);
connection.connect( function (err) {
if (err) {
console.log("!!! Cannot connect !!! Error:"); throw err;
} else {
console.log("Connection established.");
}
});

Answer 1

use below
const options = { connectionLimit :10, user:config.get('MYSQL_USER'), password: config.get('MYSQL_PASSWORD'), database:config.get('DATABASE'), host: config.get('HOST'), port: 3306 }
const connection_pool = mysql.createPool(options);
connection_pool.query('SELECT 1 + 1 AS solution', function (error, results, fields) {
if (error) throw error;
console.log('The solution is: ', results[0].solution);
});
provide connectionLimit according to you use this is pool size of connection