/
response.go
96 lines (89 loc) · 3.06 KB
/
response.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
package controller
import (
"context"
"fmt"
"github.com/go-playground/validator/v10"
"github.com/hampgoodwin/errors"
"github.com/hampgoodwin/todo/internal/meta"
"go.opentelemetry.io/otel"
otelcodes "go.opentelemetry.io/otel/codes"
"go.uber.org/zap"
"google.golang.org/genproto/googleapis/rpc/errdetails"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
func (c *Controller) respondError(ctx context.Context, log *zap.Logger, err error) error {
_, span := otel.Tracer(meta.ServiceName).Start(ctx, "internal.grpc.v1.controller.respondError")
defer span.End()
span.RecordError(err)
log.Error("responding", zap.Error(err))
var statuscode codes.Code
var message string
var msg errors.Message
if errors.As(err, &msg) {
message = msg.Value
}
span.SetStatus(otelcodes.Error, message)
switch {
case errors.Is(err, errors.NotKnown):
statuscode = codes.Unknown
case errors.Is(err, errors.NotValidRequest):
statuscode = codes.InvalidArgument
message = "bad request data, check request meta data."
case errors.Is(err, errors.NotValidRequestData):
statuscode = codes.InvalidArgument
if message == "" {
message = "bad request data"
}
if err := c.respondOnValidationErrors(err, message); err != nil {
return err
}
c.log.Error(
"incorrect error flag used for case",
zap.Error(err), zap.String("error_flag", fmt.Sprint(errors.NotValidRequestData)),
)
case errors.Is(err, errors.NotFound):
statuscode = codes.NotFound
case errors.Is(err, errors.NotValidInternalData):
statuscode = codes.Internal
message = "internal data is invalid and failed validation."
case errors.Is(err, errors.NotDeserializable):
statuscode = codes.Internal
message = "provided data passed failed deserialization. If creating a resource, check the request body types."
case errors.Is(err, errors.NotSerializable):
statuscode = codes.Internal
message = "either provided or internal data passed validation, but failed serialization."
case errors.Is(err, errors.NoRelationshipFound):
statuscode = codes.InvalidArgument
message = "process which assumed existence of a relationship between data found no relationship. If you are creating data with related data id, those id's do not exist."
default:
statuscode = codes.Internal
message = "internal error"
}
if errors.As(err, &msg) {
if msg.Value != "" {
message = msg.Value
}
}
return status.Error(statuscode, message)
}
func (c *Controller) respondOnValidationErrors(err error, message string) error {
var validationErrors validator.ValidationErrors
if errors.As(err, &validationErrors) {
st := status.New(codes.InvalidArgument, validationErrors.Error())
br := &errdetails.BadRequest{}
for _, fieldError := range validationErrors {
fv := &errdetails.BadRequest_FieldViolation{
Field: fieldError.StructNamespace(),
Description: fieldError.Tag(),
}
br.FieldViolations = append(br.FieldViolations, fv)
}
st, err := st.WithDetails(br)
if err != nil {
return status.Error(codes.Internal, "error construction validation error response")
}
return st.Err()
}
return nil
}