/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

0 vote234 views1 answer
Performance.now nodejs example
Javascript Node.js
1 vote209 views2 answers
How to find the last index of an array in javascript
Javascript Node.js
0 vote239 views1 answer
Reply nodejs terminal
Javascript Node.js
9 votes222 views3 answers
Return promise in node js
Javascript Node.js
3 votes220 views1 answer
Print to console without newline nodejs
Javascript Node.js
1 vote222 views3 answers
Nodejs fs delete non empty directory
Javascript Node.js
-1 vote228 views2 answers
Base64 to pdf in replace nodejs
Javascript Node.js
0 vote207 views1 answer
Node js timestamp format
Javascript Node.js
0 vote240 views1 answer
How to split a string into chunks nodejs
Javascript Node.js
1 vote274 views1 answer
Node cron schedule specific time
Javascript Node.js