How to correctly accept the Bitrix web hook?

Question

PHP

Good afternoon, that's the essence of the matter, I worked with incoming hooks, uploaded deals to Bitrix, and so on.
Now I need to do the opposite, upload lists from Bitrix, I created products through the lists, how can I accept a web hook on the site?
It turns out that I need to create an "outgoing web hook," in it, enter a link to the executable file on my server. Well, then the code itself. How to pass authorization, I can’t find examples anywhere, or docks. Throw off who worked and in the know.