Is it possible to somehow declare the protocol within the server and client? Is there such a mechanism in dragon?

Good afternoon.
Sorry if I wrote in the wrong section.

I tried to use your project and create a server. My idea was to make several Services and link them through a mutual connection. I wanted to do all this through one project by changing the `BUILD_TYPE` key to assemble the necessary Service. To deploy the backend for each Service, I used `drogon::HttpController` and described all the requests. When I connect from another Service to this one, I use `drogon::HttpClient`, but I didn't find how to describe the requests in this case and wrote them manually. The question is this: is it possible to somehow describe all the requests of one Service so that they can be used in the implementation as for the server side (`drogon::HttpController`) so for the client part (`drogon::HttpClient`)?
Thus, I planned not to get errors if, say, the server part is updated (requests are added) and I forget to update the client part.

p.s. sorry if something like this already exists, I recently started studying `drogon` and may have overlooked the necessary code.