How to make an API request correctly?

Question

PHP

Good afternoon.
Please do not rush right away, I have been doing front-end all my life, and now I have to do the back-end as well.
Please explain how to correctly write a request to the Yandex telephony api in order to get an authorization token?
I have never come across api and I would like to understand how to write requests and receive responses correctly, where and how to store the received token...

Answer 1

CURL