How to get a list of users who shared a post on Facebook?

Question

Facebook

There is a need to get a list of users who shared a particular post (post from my page) on Facebook. In theory, I know that there are 3 options, they are: API, FQL and third party services. Please tell me which way is the most convenient and how exactly to implement it. Thanks to!

Answer 1

FQL no longer works.
Now FB is very concerned about user privacy and cuts off almost all paths to some kind of user identification. Through the API, it seems to me that it will be impossible to do this either.