can't find method for sign up

[merlinkory]

Hi!
I can't find method for sing up new user!

If phone number did not register in telegram before, i getting following error after SMS send
PHONE_NUMBER UNOCCUPIED

Help me please with it

[levlam]

There is no separate method for sign up, you need to just call checkAuthenticationCode whenever TDLib asks for code. See https://core.telegram.org/tdlib/getting-started#user-authorization and examples for more details.

[merlinkory]

yes and after checkAuthenticationCode i getting PHONE_NUMBER UNOCCUPIED
But if number was registred in telegrabe before - all ok.

This problem with new (not registred in telegram before) phones only

[levlam]

Your are likely to pass empty first_name and last_name. See documentation of the checkAuthenticationCode method, especially its first_name parameter.

[levlam]

Since TDLib 1.5.0 the new method registerUser needs to be used for user registration in the state authorizationStateWaitRegistration.