Er_Not_Supported_Auth_Mode - MySQL Server

ER_NOT_SUPPORTED_AUTH_MODE - MySQL server

I figure that some MySQL versions have the authentication for the establishment of a connection a bit messed up. All I had to do was add the line "insecureAuth" : true to the CreateConnection(...) credentials.

var connection = mysql.createConnection({
  host     : 'localhost',
  user     : 'root',
  password : '********',
  database : 'vod_bill_database',
  insecureAuth : true
}); 

The error is gone now, and the client is successfully connecting.

MySQL 8.0 - Client does not support authentication protocol requested by server; consider upgrading MySQL client

Execute the following query in MYSQL Workbench

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';

Where root as your user
localhost as your URL
and password as your password

Then run this query to refresh privileges:

flush privileges;

Try connecting using node after you do so.

If that doesn't work, try it without @'localhost' part.

ER_NOT_SUPPORTED_AUTH_MODE issue with Keira3

Unfortunately the mysql library used by Keira3 does not support the new Mysql 8.0 authentication protocol, to change it you can run:

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';

There is an open issue for this problem.

Error Connecting to the database: Error: ER_NOT_SUPPORTED_AUTH_MODE: Client does not support authentication protocol requested by server

mysql users are in the form 'root'@'localhost'. Urls are a node.js concept only.

As that user already exists create a new one:

CREATE USER myapplication@localhost
  IDENTIFIED WITH mysql_native_password BY 'xxx';
GRANT ALL ON my_db.* TO myapplication@localhost`;

You don't need FLUSH PRIVILEGES.

ER_NOT_SUPPORTED_AUTH_MODE: Client does not support authentication protocol requested by server; consider upgrading MySQL client

Had the same problem.

Install MySQL Workbench

Execute this query: ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456789'; in MySQL Workbench

Head back over to Node.js and try running the file again. It should work, at least it did for me.

ER_NOT_SUPPORTED_AUTH_MODE: Client does not support authentication protocol requested by server; consider upgrading MySQL client on visual studio code

I had the same problem. in order to solve it, try to use on your MySQL client:

ALTER USER '<your_user>'@'localhost' IDENTIFIED WITH mysql_native_password BY '<your_password>'

Like this:

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '1234'

Then try the connection again no VS Code! That solved for me.

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