micro/client/grpc/error.go

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package grpc
import (
"github.com/micro/go-micro/v3/errors"
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"google.golang.org/grpc/status"
)
func microError(err error) error {
// no error
switch err {
case nil:
return nil
}
if verr, ok := err.(*errors.Error); ok {
return verr
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}
// grpc error
s, ok := status.FromError(err)
if !ok {
return err
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}
// return first error from details
if details := s.Details(); len(details) > 0 {
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if verr, ok := details[0].(error); ok {
return microError(verr)
}
}
// try to decode micro *errors.Error
if e := errors.Parse(s.Message()); e.Code > 0 {
return e // actually a micro error
}
// fallback
return errors.InternalServerError("go.micro.client", s.Message())
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}