API: Don’t Forget About The Non-Public API!

Background From an¬†object oriented programming perspective, an application programming interface (API) is often referred to as the way other developers can interact with the public members of your class(es) and interface(s). Of course, API can be used to describe how one interacts with a web service (or other types of services), but for this discussion I'm limiting the scope to that of interfaces and classes. Limiting the definition of API to public members (or the equivalent of C#'s "public" in other languages) is omitting one huge part of what it encompasses. The purpose of this post is to clarify, in my opinion, why I think forgetting about the non-public API can lead to bad framework and API designs. API And The Audience I've written before about what I think makes a good API, and I had some comments on Code…


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