/Javascript/Node.js/Nodejs mysql connection

Nodejs mysql connection

How to manage a db connection in javascript

//put these lines in a seperate file
const mysql = require('mysql2');

const connection = mysql.createPool({
    host: "localhost",
    user: "",
    password: "",
    database: ""
    // here you can set connection limits and so on
});

module.exports = connection;

//put these on destination page
const connection = require('../util/connection');

async function getAll() {
    const sql = "SELECT * FROM tableName";
    const [rows] = await connection.promise().query(sql);
    return rows;
} 
exports.getAll = getAll;

Source: stackoverflow.com

Nodejs mysql connection

let connection = mysql.createConnection({
    host: 'localhost',
    user: 'root',
    password: '',
    database: 'todoapp'
});
Code language: JavaScript (javascript)

Source: mysqltutorial.org

Nodejs mysql connection

connection.connect(function(err) {
  if (err) {
    return console.error('error: ' + err.message);
  }

  console.log('Connected to the MySQL server.');
});
Code language: JavaScript (javascript)

Source: mysqltutorial.org

Similar codes

25 votes189 views3 answers
Nodejs file exists
Javascript Node.js
1 vote178 views2 answers
Node js split
Javascript Node.js
23 votes171 views5 answers
Node js server
Javascript Node.js
1 vote181 views1 answer
Node js cron example
Javascript Node.js
0 vote205 views1 answer
How to check if a folder exists in node js
Javascript Node.js
6 votes213 views2 answers
Node Sass could not find a binding for your current environment
Javascript Node.js
2 votes180 views1 answer
Sleep in nodejs?
Javascript Node.js
0 vote183 views1 answer
Postmark with nodejs
Javascript Node.js
0 vote202 views1 answer
Nodejs catch uncaught exception
Javascript Node.js
0 vote184 views1 answer
Passing variable in table row delete button node js express
Javascript Node.js