MadelineProto/old_docs/API_docs_v57/methods/channels_checkUsername.md

title	description
channels.checkUsername	channels.checkUsername parameters, return type and example

Method: channels.checkUsername

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Parameters:

Name	Type	Required
channel	InputChannel	Yes
username	string	Yes

Return type: Bool

Can bots use this method: NO

Errors this method can return:

Error	Description
CHANNEL_INVALID	The provided channel is invalid
CHAT_ID_INVALID	The provided chat id is invalid
USERNAME_INVALID	The provided username is not valid

Example:

$MadelineProto = new \danog\MadelineProto\API();
if (isset($number)) { // Login as a user
    $sentCode = $MadelineProto->phone_login($number);
    echo 'Enter the code you received: ';
    $code = '';
    for ($x = 0; $x < $sentCode['type']['length']; $x++) {
        $code .= fgetc(STDIN);
    }
    $MadelineProto->complete_phone_login($code);
}

$Bool = $MadelineProto->channels->checkUsername(['channel' => InputChannel, 'username' => 'string', ]);

Or, if you're using the PWRTelegram HTTP API:

As a user:

POST/GET to https://api.pwrtelegram.xyz/userTOKEN/channels.checkUsername

Parameters:

channel - Json encoded InputChannel

username - Json encoded string

Or, if you're into Lua:

Bool = channels.checkUsername({channel=InputChannel, username='string', })