How to include API version number v1, v2, v3, etc in the path (like .../v1/... ) and have it: being used to select proper version of Controller class carried over to Controller as a parameter (optional) HTTP Calls Here is how HTTP calls to different API versions would look like: /v1/User/SomeAction?param=zzz /v2/User/SomeAction?param=zzz .... /vNN/User/SomeAction?param=zzz Controllers Now let's take a look at the server side. In most