github.com/tickoalcantara12/micro/v3@v3.0.0-20221007104245-9d75b9bcbab9/service/client/grpc/error.go (about)

     1  // Copyright 2020 Asim Aslam
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     https://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  //
    15  // Original source: github.com/micro/go-micro/v3/client/grpc/error.go
    16  
    17  package grpc
    18  
    19  import (
    20  	"github.com/tickoalcantara12/micro/v3/service/errors"
    21  	"google.golang.org/grpc/status"
    22  )
    23  
    24  func microError(err error) error {
    25  	// no error
    26  	switch err {
    27  	case nil:
    28  		return nil
    29  	}
    30  
    31  	if verr, ok := err.(*errors.Error); ok {
    32  		return verr
    33  	}
    34  
    35  	// grpc error
    36  	s, ok := status.FromError(err)
    37  	if !ok {
    38  		return err
    39  	}
    40  
    41  	// return first error from details
    42  	if details := s.Details(); len(details) > 0 {
    43  		if verr, ok := details[0].(error); ok {
    44  			return microError(verr)
    45  		}
    46  	}
    47  
    48  	// try to decode micro *errors.Error
    49  	if e := errors.Parse(s.Message()); e.Code > 0 {
    50  		return e // actually a micro error
    51  	}
    52  
    53  	// fallback
    54  	return errors.InternalServerError("go.micro.client", s.Message())
    55  }