Yup, my solution as well. As well as a couple other common libraries (eg: https://github.com/pkg/errors https://github.com/pkg/errors) The only downside to thi

Yup, my solution as well. As well as a couple other common libraries (eg: https://github.com/pkg/errors https://github.com/pkg/errors) The only downside to this is you can no longer treat errors as values. Eg, you can't do: err := Func() if err == ErrBadThing { // do stuff } So you have to implement some type of `Cause()` method. In my lib, i have `errors.Cause()` which returns the root error, as well as a shorthand func `errors.Equals(err, ErrBadThing`)`