As already mentioned, the context.Context type serves two purposes: It manages cancelation signals, and it allows passing request-scoped data. In my opinion, these two purposes are distinct enough that they probably should be handled by two separate mechanisms. But alas, that’s not what we have. However, I think it’s still useful to think of the two uses as distinct. Most often (at least in a well-designed application), the primary purpose of a context is the propegation of cancelation si...
