Generate a login token, for login via QR code.
The generated login token should be encoded using base64url, then shown as a tg://login?token=base64encodedtoken deep link » in the QR code.

For more info, see login via QR code.

auth.loginToken#629f1980 expires:int token:bytes = auth.LoginToken;
auth.loginTokenMigrateTo#68e9916 dc_id:int token:bytes = auth.LoginToken;
auth.loginTokenSuccess#390d5c5e authorization:auth.Authorization = auth.LoginToken;
auth.exportLoginToken#b7e085fe api_id:int api_hash:string except_ids:Vector<long> = auth.LoginToken;


Name Type Description
api_id int Application identifier (see. App configuration)
api_hash string Application identifier hash (see. App configuration)
except_ids Vector<long> List of already logged-in user IDs, to prevent logging in twice with the same user



Possible errors

Code Type Description
400 API_ID_INVALID API ID invalid.
400 API_ID_PUBLISHED_FLOOD This API id was published somewhere, you can't use it now.

Related pages

Login via QR code

QR code login flow

Deep links

Telegram clients must handle special tg:// and deep links encountered in messages, link entities and in other apps by registering OS handlers.