How to implement ajax request authorization?

Question

Laravel

Hey! I can not figure out how to implement AJAX request authorization in any way.
Task input data:
There is some functionality with the /api/post/create endpoint, and you need to somehow implement request authorization when you try to access this API method via AJAX.
Disclaimer:
It would be possible to use the oAuth authentication mechanism with subsequent authorization of requests, but this is too cumbersome, as for me ...
PS
API and AJAX are all one server and one domain, in general, one big CMS

Answer 1

1. Sessions
2. Generation of key strings for the request
3. Generation of RSA keys (for particularly evil individuals)