How create forms in Telegram bots

Question

For example authorization form has login and password, I want create equivalent form in Telegram.

Q: /signin

A: Enter your login

Q: Somelogin

A: Enter you password

Q: Somepassword

A: Authorization success!

But how I can save incoming data from user? Is any API for it or maybe I must save input data in temporarily database field? (as chat_id, command, session_expire, command_state, command_tmp_data)

Answer 1

You should use OAuth or redirect users to auth form on your website (and redirect them back after authorization). Send user's auth data in text messages and ask them for it is big evil.