I want to implement for the below flow.
I do post http request to the another end point url.
that end point system will do http posting to the return url that I have specified for more information.
In that case, How can I set up or make a Apex class which can process the http post from other system?
So that I can capture the information from the http post and proceess the necessary things.
In java, we can create servlet and get the information back to our system.
As I am new to Apex, how can I make the url that can be exposed to other system and allow to capture information from post request by other system?
any reference will be so helpful for me.
IMPORTANT NOTE: No authentication should be needed. As I just want to get the result of other system.