In this post I’m going to describe an error-handling pattern I’ve found to be fairly elegant when writing REST, gRPC, or other services in Go. I have two goals in writing this post: To explain the pattern I’ve implemented for a few clients, so that others developing on the same codebase will understand it. To give others a pattern they may wish to implement in their own applications. For simplicty, the examples I’ll be discussing will be part of a REST API, using simple HTTP status codes. But t...