Prerequisites
This feature allows you to prefill one or more user field params into the register form. Using the json data structure from the User API Register response.
Usage
This is the same GET request to start a OAuth2 authorization, only in this case, you have to add the query string parameter x_prefill
to your authorization url. The content of this param is a Base64 (URL safe) encoded JSON (without whitespaces and comments) with the following structure: