NodeJS/mySQL - ER_ACCESS_DENIED_ERROR Access denied for user 'root'@'localhost' (using password: YES)

Question

I am attempting to connect to mySQL through a NodeJS file, but I receive the following error:

{ Error: ER_ACCESS_DENIED_ERROR: Access denied for user \'root\         


        

Answer 1

Login into your mysql using mysql -u root -p password

Create new user z (MySQL console)

CREATE USER 'z'@'localhost' IDENTIFIED BY '';
GRANT ALL PRIVILEGES ON * . * TO 'z'@'localhost';

Node.js script

var mysql = require('mysql');

var con = mysql.createConnection({
    host: "localhost",
    user: "z",
    password: ""
});

con.connect(function(err) {

    if (err) throw err;
    console.log("Connected!");

    con.query("use mysql;", function(err, result) {
        if (err) throw err;
        console.log(result);
    });

    con.query("select * from user limit 1;", function(err, result) {
        if (err) throw err;
        console.log(result);
    });

});

Answer 2

For me the problem was having inside the SQL connection object pass: 'mypassword' instead of password: 'mypassword'.

Answer 3

I have the same problem, I solved it by changing the password to empty string.

var mysql = require('mysql');
var connection = mysql.createConnection({
    host: 'localhost',
    user: 'root',
    password: ''
});

Answer 4

For mysql version 2.16.0 (Sept 2018):

just create a new user on mysql.

GRANT ALL PRIVILEGES ON *.* TO 'username'@'localhost' IDENTIFIED BY 'password';

replace username and password.

Answer 5

I was facing same error on mac, however whenever I run same code on windows machine it was working absolutely good, without any error. After spending 2 days I found solution.

Below are the steps I followed.

1. to your project folder in terminal and run "sudo su -" command

e.g. Avi-MBP:projectDirectory avisurya$ sudo su -

2. it will as password e.g. Password: enter your mac user password

3. Now you will be in root e.g. Avi-MBP:~ root#

4. now again go to project directory e.g. Avi-MBP:~ root# cd /Users/avisurya/projectDirectory

5. now start node application e.g. in my case "node server.js"