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

I had the same problem and changing password of database user worked for me. Follow these steps :

1. Open MySQL Workbench

2. Open Local instance MySQL57 using old password

3. Go to Server > Users and Privileges

4. Change password, and login to MySQL again. OR Create a newuser and set privileges. (If changing password do not work.)

Answer 2

I have solved this by adding socket path to connection configuration. For more details you can see here

Answer 3

You had to add the new user with an IP of the allowed host section not of the name of "localhost"

// Do the mySQL Stuff
var con = mysql.createConnection({
  host: 'localhost',
  user: 'user',
  password: 'mypwd',
  database: 'database',
  port: 3306,
  debug: true
});

//MYSQL Statement

RENAME USER 'myuser'@'localhost' TO 'myuser'@'127.0.0.1';

Answer 4

Try adding a port field:

var connection = mysql.createConnection({
   host: 'localhost',
   user: 'root',
   password: 'password',
   port: 3307
});

Answer 5

Try n make sure that you use the credentials that you use to login your database are correct

const Sequelize = require('sequelize')
const db = {}
const sequelize = new Sequelize('ochiengsDatabase', 'ochienguser', ' 
mydbpassword', {
host: 'localhost',
dialect: 'mysql',
operatorsAliases: false,

Answer 6

I was getting the same issue, but using require('mariadb'), which is essentially the same. So my answer should apply to both drivers.

The problem was 2 fold:

• host: 'localhost', user: 'user' is always resolving as 'user'@'127.0.0.1' on the database. So don't use localhost but 127.0.0.1 instead!

• The password encryption scheme was incompatible between client and server, apparently the Node client is using mysql_native_password.

Here's the solution: (from the mysql command-line client)

# If you don't have a 127.0.0.1 equivalent user:
CREATE USER 'root'@'127.0.0.1' IDENTIFIED WITH mysql_native_password BY 'password';

# If you already have the user, reset its password:         
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';

# Redo your grants on the 127.0.0.1 user:
GRANT ALL PRIVILEGES ON *.* TO 'root'@'127.0.0.1';
FLUSH PRIVILEGES;

Voilà, now connect from Node and everything works:

const mariadb = require('mariadb'); // or require('mysql');

const pool = mariadb.createPool({
    host: 'localhost',  // or host: '127.0.0.1'
    user: 'root',
    password: 'password',
    database: 'mydatabase',  // don't forget the database
    port: 3306,
    connectionLimit: 5
});

References:

Here's where I got the solution from, read for more info