Respond to POST

I know how to POST using HTTP in UE4. But i want to listen on a url to respond to POST from another client. In normal rest api c++, i will use http_listener and then assign callback for POST methods.

In UE4, i cannot install the cpprestsdk using nuGET Packages. And the built in HTTP can only GET and POST but listen on a url. So i cannot respond to POST requests. Can anyone help me with an alternate or any solution?