MadelineProtoDocs/docs/API_docs/methods/account.updateUsername.md

title	description	image	redirect_from
account.updateUsername	Changes username for the current user.	https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png	/API_docs/methods/account_updateUsername.html

Method: account.updateUsername

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Changes username for the current user.

Parameters:

Name	Type	Description	Required
username	string	username or empty string if username is to be removed Accepted characters: a-z (case-insensitive), 0-9 and underscores. Length: 5-32 characters.	Yes

Return type: User

Can bots use this method: NO

MadelineProto Example (now async for huge speed and parallelism!):

if (!file_exists('madeline.php')) {
    copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
}
include 'madeline.php';

$MadelineProto = new \danog\MadelineProto\API('session.madeline');
$MadelineProto->start();

$User = $MadelineProto->account->updateUsername(['username' => 'string', ]);

Or, if you're into Lua:

User = account.updateUsername({username='string', })

Errors

Code	Type	Description
400	USERNAME_INVALID	The provided username is not valid
400	USERNAME_NOT_MODIFIED	The username was not modified
400	USERNAME_OCCUPIED	The provided username is already occupied
406	AUTH_KEY_DUPLICATED	An auth key with the same ID was already generated
401	AUTH_KEY_PERM_EMPTY	The temporary auth key must be binded to the permanent auth key to use these methods.
401	SESSION_PASSWORD_NEEDED	2FA is enabled, use a password to login