This is the right way. What is the issue you are facing ? See
https://tip.golang.org/pkg/errors/ for more info.
You can check for Layer1Error and Layer2Error using the Is function
errors.Is(err, Layer1Error)
errors.Is(err, Layer2Error)
On Friday, 9 August 2019 19:09:24 UTC+5:30, Alex wrote:
>
> Sorry, mixed things up in the code with layer1 and layer2...
>
>
> var (
> Layer1Error = errors.New("some error on layer 1")
> Layer2Error = errors.New("some error on layer 2")
> )
>
> func main() {
> err := callLayer1Function()
>
> // do something with error
> }
>
> func callLayer1Function() error {
> err := callLayer2Function()
>
> // how to not lose layer2 error but also append a new layer1 error ?
> // this does not work, since you fully lose layer1 error
> // with pkg/err
> return fmt.Errorf("some specific layer 1 error message: %w", Layer1Error)
> }
>
> func callLayer2Function() error {
> // wrap an error of Layer2 here
> return fmt.Errorf("some specific layer2 error message: %w", Layer2Error)
> }
>
>
>
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