The past days I’ve practiced Go by writing a package for Apixu weather service. They have a a straightforward REST service to offer their weather information.
Their service also returns an error response if it can’t offer data based on your needs, if you use an invalid API key, or for other cases. Of course, the Go package should also return errors if the case.
No problem with returning data, but I had some issues handling errors. There can be general errors that have nothing to do with Apixu (but with the package internals) and errors returned by them. My first approach was to return three values for each API method:
Search(q string) (Search, ApixuError, error)
But it smelled right away. There had to be another way. Continue reading Handling API errors