Decided to rework my old integration using whoshuu's cpr and nlohmann's json instead. Core idea behind it is the authentication for loaders, servers, clients etc., you name it. It is WIP again, so I will try to extend that whole thing at some point, might add more loader and injection related stuff to it later.
Current functionality: Making a request to a XenForo forum and parsing variables from the response like username, userid, email, secondary groups and a few more things.
https://github.com/gandaalv/XenForo-API-Integration
Greetings.