micro-client-grpc/error.go

55 lines
1.0 KiB
Go

package grpc
import (
"go.unistack.org/micro/v3/errors"
"google.golang.org/grpc/status"
)
func microError(err error) error {
// no error
if err == nil {
// nothing to do
return nil
}
if verr, ok := err.(*errors.Error); ok {
// micro error
return verr
}
// grpc error
s, ok := status.FromError(err)
if !ok {
// can't get status detals from grpc error, return base error
return err
}
details := s.Details()
switch len(details) {
case 0:
if verr := errors.Parse(s.Message()); verr.Code > 0 {
// return micro error
return verr
}
// return base error as it not micro error
return err
case 1:
if verr, ok := details[0].(*errors.Error); ok {
// return nested micro error
return verr
}
// return base error as it not holds micro error
return err
}
// attached messages in details more then 1, try to fallback to micro error
if verr := errors.Parse(s.Message()); verr.Code > 0 {
// return micro error
return verr
}
// not micro error return base error
return err
}