add MultiError type (#2297)

errors/errors.go

@@ -160,3 +160,22 @@ func As(err error) (*Error, bool) {
 	}
 	return nil, false
 }
+
+func NewMultiError() *MultiError {
+	return &MultiError{
+		Errors: make([]*Error, 0),
+	}
+}
+
+func (e *MultiError) Append(err *Error) {
+	e.Errors = append(e.Errors, err)
+}
+
+func (e *MultiError) HasErrors() bool {
+	return len(e.Errors) > 0
+}
+
+func (e *MultiError) Error() string {
+	b, _ := json.Marshal(e)
+	return string(b)
+}

errors/errors.pb.go

@@ -1,102 +1,233 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
-// source: errors/errors.proto
+// versions:
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.13.0
+// source: errors.proto
 
 package errors
 
 import (
-	fmt "fmt"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	proto "github.com/golang/protobuf/proto"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	math "math"
+	reflect "reflect"
+	sync "sync"
 )
 
-// Reference imports to suppress errors if they are not otherwise used.
+const (
-var _ = proto.Marshal
+	// Verify that this generated code is sufficiently up-to-date.
-var _ = fmt.Errorf
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
-var _ = math.Inf
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
-
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
-// This is a compile-time assertion to ensure that this generated file
+)
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
 
 type Error struct {
-	Id                   string   `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	state         protoimpl.MessageState
-	Code                 int32    `protobuf:"varint,2,opt,name=code,proto3" json:"code,omitempty"`
+	sizeCache     protoimpl.SizeCache
-	Detail               string   `protobuf:"bytes,3,opt,name=detail,proto3" json:"detail,omitempty"`
+	unknownFields protoimpl.UnknownFields
-	Status               string   `protobuf:"bytes,4,opt,name=status,proto3" json:"status,omitempty"`
+
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	Id     string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
-	XXX_unrecognized     []byte   `json:"-"`
+	Code   int32  `protobuf:"varint,2,opt,name=code,proto3" json:"code,omitempty"`
-	XXX_sizecache        int32    `json:"-"`
+	Detail string `protobuf:"bytes,3,opt,name=detail,proto3" json:"detail,omitempty"`
+	Status string `protobuf:"bytes,4,opt,name=status,proto3" json:"status,omitempty"`
 }
 
-func (m *Error) Reset()         { *m = Error{} }
+func (x *Error) Reset() {
-func (m *Error) String() string { return proto.CompactTextString(m) }
+	*x = Error{}
-func (*Error) ProtoMessage()    {}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_errors_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Error) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Error) ProtoMessage() {}
+
+func (x *Error) ProtoReflect() protoreflect.Message {
+	mi := &file_errors_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Error.ProtoReflect.Descriptor instead.
 func (*Error) Descriptor() ([]byte, []int) {
-	return fileDescriptor_85c4eef3398a32b2, []int{0}
+	return file_errors_proto_rawDescGZIP(), []int{0}
 }
 
-func (m *Error) XXX_Unmarshal(b []byte) error {
+func (x *Error) GetId() string {
-	return xxx_messageInfo_Error.Unmarshal(m, b)
+	if x != nil {
-}
+		return x.Id
-func (m *Error) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_Error.Marshal(b, m, deterministic)
-}
-func (m *Error) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_Error.Merge(m, src)
-}
-func (m *Error) XXX_Size() int {
-	return xxx_messageInfo_Error.Size(m)
-}
-func (m *Error) XXX_DiscardUnknown() {
-	xxx_messageInfo_Error.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_Error proto.InternalMessageInfo
-
-func (m *Error) GetId() string {
-	if m != nil {
-		return m.Id
 	}
 	return ""
 }
 
-func (m *Error) GetCode() int32 {
+func (x *Error) GetCode() int32 {
-	if m != nil {
+	if x != nil {
-		return m.Code
+		return x.Code
 	}
 	return 0
 }
 
-func (m *Error) GetDetail() string {
+func (x *Error) GetDetail() string {
-	if m != nil {
+	if x != nil {
-		return m.Detail
+		return x.Detail
 	}
 	return ""
 }
 
-func (m *Error) GetStatus() string {
+func (x *Error) GetStatus() string {
-	if m != nil {
+	if x != nil {
-		return m.Status
+		return x.Status
 	}
 	return ""
 }
 
-func init() {
+type MultiError struct {
-	proto.RegisterType((*Error)(nil), "errors.Error")
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Errors []*Error `protobuf:"bytes,1,rep,name=errors,proto3" json:"errors,omitempty"`
 }
 
-func init() { proto.RegisterFile("errors/errors.proto", fileDescriptor_85c4eef3398a32b2) }
+func (x *MultiError) Reset() {
-
+	*x = MultiError{}
-var fileDescriptor_85c4eef3398a32b2 = []byte{
+	if protoimpl.UnsafeEnabled {
-	// 118 bytes of a gzipped FileDescriptorProto
+		mi := &file_errors_proto_msgTypes[1]
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x12, 0x4e, 0x2d, 0x2a, 0xca,
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	0x2f, 0x2a, 0xd6, 0x87, 0x50, 0x7a, 0x05, 0x45, 0xf9, 0x25, 0xf9, 0x42, 0x6c, 0x10, 0x9e, 0x52,
+		ms.StoreMessageInfo(mi)
-	0x34, 0x17, 0xab, 0x2b, 0x88, 0x25, 0xc4, 0xc7, 0xc5, 0x94, 0x99, 0x22, 0xc1, 0xa8, 0xc0, 0xa8,
+	}
-	0xc1, 0x19, 0xc4, 0x94, 0x99, 0x22, 0x24, 0xc4, 0xc5, 0x92, 0x9c, 0x9f, 0x92, 0x2a, 0xc1, 0xa4,
+}
-	0xc0, 0xa8, 0xc1, 0x1a, 0x04, 0x66, 0x0b, 0x89, 0x71, 0xb1, 0xa5, 0xa4, 0x96, 0x24, 0x66, 0xe6,
+
-	0x48, 0x30, 0x83, 0xd5, 0x41, 0x79, 0x20, 0xf1, 0xe2, 0x92, 0xc4, 0x92, 0xd2, 0x62, 0x09, 0x16,
+func (x *MultiError) String() string {
-	0x88, 0x38, 0x84, 0x97, 0xc4, 0x06, 0xb6, 0xcb, 0x18, 0x10, 0x00, 0x00, 0xff, 0xff, 0xca, 0xc3,
+	return protoimpl.X.MessageStringOf(x)
-	0xcb, 0x29, 0x82, 0x00, 0x00, 0x00,
+}
+
+func (*MultiError) ProtoMessage() {}
+
+func (x *MultiError) ProtoReflect() protoreflect.Message {
+	mi := &file_errors_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use MultiError.ProtoReflect.Descriptor instead.
+func (*MultiError) Descriptor() ([]byte, []int) {
+	return file_errors_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *MultiError) GetErrors() []*Error {
+	if x != nil {
+		return x.Errors
+	}
+	return nil
+}
+
+var File_errors_proto protoreflect.FileDescriptor
+
+var file_errors_proto_rawDesc = []byte{
+	0x0a, 0x0c, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x06,
+	0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x22, 0x5b, 0x0a, 0x05, 0x45, 0x72, 0x72, 0x6f, 0x72, 0x12,
+	0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x02, 0x69, 0x64, 0x12,
+	0x12, 0x0a, 0x04, 0x63, 0x6f, 0x64, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52, 0x04, 0x63,
+	0x6f, 0x64, 0x65, 0x12, 0x16, 0x0a, 0x06, 0x64, 0x65, 0x74, 0x61, 0x69, 0x6c, 0x18, 0x03, 0x20,
+	0x01, 0x28, 0x09, 0x52, 0x06, 0x64, 0x65, 0x74, 0x61, 0x69, 0x6c, 0x12, 0x16, 0x0a, 0x06, 0x73,
+	0x74, 0x61, 0x74, 0x75, 0x73, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x73, 0x74, 0x61,
+	0x74, 0x75, 0x73, 0x22, 0x33, 0x0a, 0x0a, 0x4d, 0x75, 0x6c, 0x74, 0x69, 0x45, 0x72, 0x72, 0x6f,
+	0x72, 0x12, 0x25, 0x0a, 0x06, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28,
+	0x0b, 0x32, 0x0d, 0x2e, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x2e, 0x45, 0x72, 0x72, 0x6f, 0x72,
+	0x52, 0x06, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x42, 0x03, 0x5a, 0x01, 0x2e, 0x62, 0x06, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_errors_proto_rawDescOnce sync.Once
+	file_errors_proto_rawDescData = file_errors_proto_rawDesc
+)
+
+func file_errors_proto_rawDescGZIP() []byte {
+	file_errors_proto_rawDescOnce.Do(func() {
+		file_errors_proto_rawDescData = protoimpl.X.CompressGZIP(file_errors_proto_rawDescData)
+	})
+	return file_errors_proto_rawDescData
+}
+
+var file_errors_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_errors_proto_goTypes = []interface{}{
+	(*Error)(nil),      // 0: errors.Error
+	(*MultiError)(nil), // 1: errors.MultiError
+}
+var file_errors_proto_depIdxs = []int32{
+	0, // 0: errors.MultiError.errors:type_name -> errors.Error
+	1, // [1:1] is the sub-list for method output_type
+	1, // [1:1] is the sub-list for method input_type
+	1, // [1:1] is the sub-list for extension type_name
+	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
+}
+
+func init() { file_errors_proto_init() }
+func file_errors_proto_init() {
+	if File_errors_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_errors_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Error); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_errors_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*MultiError); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_errors_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_errors_proto_goTypes,
+		DependencyIndexes: file_errors_proto_depIdxs,
+		MessageInfos:      file_errors_proto_msgTypes,
+	}.Build()
+	File_errors_proto = out.File
+	file_errors_proto_rawDesc = nil
+	file_errors_proto_goTypes = nil
+	file_errors_proto_depIdxs = nil
 }

errors/errors.pb.micro.go

@@ -1,11 +1,11 @@
 // Code generated by protoc-gen-micro. DO NOT EDIT.
-// source: errors/errors.proto
+// source: errors.proto
 
 package errors
 
 import (
 	fmt "fmt"
-	proto "github.com/golang/protobuf/proto"
+	proto "google.golang.org/protobuf/proto"
 	math "math"
 )
 
@@ -13,9 +13,3 @@ import (
 var _ = proto.Marshal
 var _ = fmt.Errorf
 var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package

errors/errors.proto

@@ -8,3 +8,7 @@ message Error {
   string detail = 3;
   string status = 4;
 };
+
+message MultiError {
+  repeated Error errors = 1;
+}

errors/errors_test.go

@@ -98,3 +98,81 @@ func TestAs(t *testing.T) {
 		t.Fatalf("nil should not convert to *Error")
 	}
 }
+
+func TestAppend(t *testing.T) {
+	mError := NewMultiError()
+	testData := []*Error{
+		{
+			Id:     "test1",
+			Code:   500,
+			Detail: "Internal server error",
+			Status: http.StatusText(500),
+		},
+		{
+			Id: 	"test2",
+			Code:	400,
+			Detail:	"Bad Request",
+			Status: http.StatusText(400),
+		},
+		{
+			Id:     "test3",
+			Code:   404,
+			Detail: "Not Found",
+			Status: http.StatusText(404),	
+		},
+	}
+
+	for _, e := range testData {
+		mError.Append(&Error{
+			Id: e.Id,
+			Code: e.Code,
+			Detail: e.Detail,
+			Status: e.Status,
+		})
+	}
+
+	if len(mError.Errors) != 3 {
+		t.Fatalf("Expected 3 got %v", len(mError.Errors))
+	}
+}
+
+func TestHasErrors(t *testing.T) {
+	mError := NewMultiError()
+	testData := []*Error{
+		{
+			Id:     "test1",
+			Code:   500,
+			Detail: "Internal server error",
+			Status: http.StatusText(500),
+		},
+		{
+			Id: 	"test2",
+			Code:	400,
+			Detail:	"Bad Request",
+			Status: http.StatusText(400),
+		},
+		{
+			Id:     "test3",
+			Code:   404,
+			Detail: "Not Found",
+			Status: http.StatusText(404),	
+		},
+	}
+
+	if mError.HasErrors() {
+		t.Fatal("Expected no error")
+	}
+
+	for _, e := range testData {
+		mError.Errors = append(mError.Errors, &Error{
+			Id: e.Id,
+			Code: e.Code,
+			Detail: e.Detail,
+			Status: e.Status,
+		})
+	}
+
+	if !mError.HasErrors() {
+		t.Fatal("Expected errors")
+	}
+}

go.mod

@@ -28,4 +28,5 @@ require (
 	golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a
 	golang.org/x/net v0.0.0-20210510120150-4163338589ed
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
+	google.golang.org/protobuf v1.26.0
 )

go.sum

@@ -151,6 +151,7 @@ github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5Kwzbycv
 github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
 github.com/felixge/httpsnoop v1.0.1 h1:lvB5Jl89CsZtGIWuTcDM1E/vkVs49/Ml7JJe07l8SPQ=
 github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
+github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 h1:BHsljHzVlRcyQhjrss6TZTdY2VfCqZPbv5k3iBFa2ZQ=
 github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=