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interceptors: migrate to otel and add logging interceptor

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Signed-off-by: Adphi <philippe.adrien.nousse@gmail.com>
This commit is contained in:
Adphi
2024-10-17 17:15:05 +02:00
parent 9591a64e09
commit 3a3d77169c
41 changed files with 2817 additions and 852 deletions
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27
example/pb/example.pb.defaults.go Normal file
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// Code generated by protoc-gen-defaults. DO NOT EDIT.
package pb
import (
"google.golang.org/protobuf/types/known/durationpb"
"google.golang.org/protobuf/types/known/timestamppb"
"google.golang.org/protobuf/types/known/wrapperspb"
)
var (
_ *timestamppb.Timestamp
_ *durationpb.Duration
_ *wrapperspb.BoolValue
)
func (x *HelloRequest) Default() {
}
func (x *HelloReply) Default() {
}
func (x *HelloStreamRequest) Default() {
if x.Count == 0 {
x.Count = 10
}
}

31
example/pb/example.pb.fields.go Normal file
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// Code generated by protoc-gen-defaults. DO NOT EDIT.
package pb
var GreeterMethods = struct {
SayHello string
SayHelloStream string
}{
SayHello: "/helloworld.Greeter/SayHello",
SayHelloStream: "/helloworld.Greeter/SayHelloStream",
}
var HelloRequestFields = struct {
Name string
}{
Name: "name",
}
var HelloReplyFields = struct {
Message string
}{
Message: "message",
}
var HelloStreamRequestFields = struct {
Name string
Count string
}{
Name: "name",
Count: "count",
}

261
example/pb/example.pb.go Normal file
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// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.35.1
// protoc v5.28.2
// source: example/pb/example.proto
package pb
import (
_ "github.com/envoyproxy/protoc-gen-validate/validate"
_ "go.linka.cloud/protoc-gen-defaults/defaults"
_ "google.golang.org/genproto/googleapis/api/annotations"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
type HelloRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
}
func (x *HelloRequest) Reset() {
*x = HelloRequest{}
mi := &file_example_pb_example_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
func (x *HelloRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*HelloRequest) ProtoMessage() {}
func (x *HelloRequest) ProtoReflect() protoreflect.Message {
mi := &file_example_pb_example_proto_msgTypes[0]
if x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use HelloRequest.ProtoReflect.Descriptor instead.
func (*HelloRequest) Descriptor() ([]byte, []int) {
return file_example_pb_example_proto_rawDescGZIP(), []int{0}
}
func (x *HelloRequest) GetName() string {
if x != nil {
return x.Name
}
return ""
}
type HelloReply struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Message string `protobuf:"bytes,1,opt,name=message,proto3" json:"message,omitempty"`
}
func (x *HelloReply) Reset() {
*x = HelloReply{}
mi := &file_example_pb_example_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
func (x *HelloReply) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*HelloReply) ProtoMessage() {}
func (x *HelloReply) ProtoReflect() protoreflect.Message {
mi := &file_example_pb_example_proto_msgTypes[1]
if x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use HelloReply.ProtoReflect.Descriptor instead.
func (*HelloReply) Descriptor() ([]byte, []int) {
return file_example_pb_example_proto_rawDescGZIP(), []int{1}
}
func (x *HelloReply) GetMessage() string {
if x != nil {
return x.Message
}
return ""
}
type HelloStreamRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
Count int64 `protobuf:"varint,2,opt,name=count,proto3" json:"count,omitempty"`
}
func (x *HelloStreamRequest) Reset() {
*x = HelloStreamRequest{}
mi := &file_example_pb_example_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
func (x *HelloStreamRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*HelloStreamRequest) ProtoMessage() {}
func (x *HelloStreamRequest) ProtoReflect() protoreflect.Message {
mi := &file_example_pb_example_proto_msgTypes[2]
if x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use HelloStreamRequest.ProtoReflect.Descriptor instead.
func (*HelloStreamRequest) Descriptor() ([]byte, []int) {
return file_example_pb_example_proto_rawDescGZIP(), []int{2}
}
func (x *HelloStreamRequest) GetName() string {
if x != nil {
return x.Name
}
return ""
}
func (x *HelloStreamRequest) GetCount() int64 {
if x != nil {
return x.Count
}
return 0
}
var File_example_pb_example_proto protoreflect.FileDescriptor
var file_example_pb_example_proto_rawDesc = []byte{
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}
var (
file_example_pb_example_proto_rawDescOnce sync.Once
file_example_pb_example_proto_rawDescData = file_example_pb_example_proto_rawDesc
)
func file_example_pb_example_proto_rawDescGZIP() []byte {
file_example_pb_example_proto_rawDescOnce.Do(func() {
file_example_pb_example_proto_rawDescData = protoimpl.X.CompressGZIP(file_example_pb_example_proto_rawDescData)
})
return file_example_pb_example_proto_rawDescData
}
var file_example_pb_example_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
var file_example_pb_example_proto_goTypes = []any{
(*HelloRequest)(nil), // 0: helloworld.HelloRequest
(*HelloReply)(nil), // 1: helloworld.HelloReply
(*HelloStreamRequest)(nil), // 2: helloworld.HelloStreamRequest
}
var file_example_pb_example_proto_depIdxs = []int32{
0, // 0: helloworld.Greeter.SayHello:input_type -> helloworld.HelloRequest
2, // 1: helloworld.Greeter.SayHelloStream:input_type -> helloworld.HelloStreamRequest
1, // 2: helloworld.Greeter.SayHello:output_type -> helloworld.HelloReply
1, // 3: helloworld.Greeter.SayHelloStream:output_type -> helloworld.HelloReply
2, // [2:4] is the sub-list for method output_type
0, // [0:2] is the sub-list for method input_type
0, // [0:0] is the sub-list for extension type_name
0, // [0:0] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
}
func init() { file_example_pb_example_proto_init() }
func file_example_pb_example_proto_init() {
if File_example_pb_example_proto != nil {
return
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_example_pb_example_proto_rawDesc,
NumEnums: 0,
NumMessages: 3,
NumExtensions: 0,
NumServices: 1,
},
GoTypes: file_example_pb_example_proto_goTypes,
DependencyIndexes: file_example_pb_example_proto_depIdxs,
MessageInfos: file_example_pb_example_proto_msgTypes,
}.Build()
File_example_pb_example_proto = out.File
file_example_pb_example_proto_rawDesc = nil
file_example_pb_example_proto_goTypes = nil
file_example_pb_example_proto_depIdxs = nil
}

163
example/pb/example.pb.gw.go Normal file
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// Code generated by protoc-gen-grpc-gateway. DO NOT EDIT.
// source: example/pb/example.proto
/*
Package pb is a reverse proxy.
It translates gRPC into RESTful JSON APIs.
*/
package pb
import (
"context"
"io"
"net/http"
"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
"github.com/grpc-ecosystem/grpc-gateway/v2/utilities"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/proto"
)
// Suppress "imported and not used" errors
var _ codes.Code
var _ io.Reader
var _ status.Status
var _ = runtime.String
var _ = utilities.NewDoubleArray
var _ = metadata.Join
func request_Greeter_SayHello_0(ctx context.Context, marshaler runtime.Marshaler, client GreeterClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
var protoReq HelloRequest
var metadata runtime.ServerMetadata
if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && err != io.EOF {
return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
}
msg, err := client.SayHello(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
return msg, metadata, err
}
func local_request_Greeter_SayHello_0(ctx context.Context, marshaler runtime.Marshaler, server GreeterServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
var protoReq HelloRequest
var metadata runtime.ServerMetadata
if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && err != io.EOF {
return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
}
msg, err := server.SayHello(ctx, &protoReq)
return msg, metadata, err
}
// RegisterGreeterHandlerServer registers the http handlers for service Greeter to "mux".
// UnaryRPC :call GreeterServer directly.
// StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
// Note that using this registration option will cause many gRPC library features to stop working. Consider using RegisterGreeterHandlerFromEndpoint instead.
func RegisterGreeterHandlerServer(ctx context.Context, mux *runtime.ServeMux, server GreeterServer) error {
mux.Handle("POST", pattern_Greeter_SayHello_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
ctx, cancel := context.WithCancel(req.Context())
defer cancel()
var stream runtime.ServerTransportStream
ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
var err error
var annotatedContext context.Context
annotatedContext, err = runtime.AnnotateIncomingContext(ctx, mux, req, "/helloworld.Greeter/SayHello", runtime.WithHTTPPathPattern("/api/v1/greeter/hello"))
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
resp, md, err := local_request_Greeter_SayHello_0(annotatedContext, inboundMarshaler, server, req, pathParams)
md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
if err != nil {
runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
return
}
forward_Greeter_SayHello_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
})
return nil
}
// RegisterGreeterHandlerFromEndpoint is same as RegisterGreeterHandler but
// automatically dials to "endpoint" and closes the connection when "ctx" gets done.
func RegisterGreeterHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
conn, err := grpc.NewClient(endpoint, opts...)
if err != nil {
return err
}
defer func() {
if err != nil {
if cerr := conn.Close(); cerr != nil {
grpclog.Errorf("Failed to close conn to %s: %v", endpoint, cerr)
}
return
}
go func() {
<-ctx.Done()
if cerr := conn.Close(); cerr != nil {
grpclog.Errorf("Failed to close conn to %s: %v", endpoint, cerr)
}
}()
}()
return RegisterGreeterHandler(ctx, mux, conn)
}
// RegisterGreeterHandler registers the http handlers for service Greeter to "mux".
// The handlers forward requests to the grpc endpoint over "conn".
func RegisterGreeterHandler(ctx context.Context, mux *runtime.ServeMux, cc grpc.ClientConnInterface) error {
return RegisterGreeterHandlerClient(ctx, mux, NewGreeterClient(cc))
}
// RegisterGreeterHandlerClient registers the http handlers for service Greeter
// to "mux". The handlers forward requests to the grpc endpoint over the given implementation of "GreeterClient".
// Note: the gRPC framework executes interceptors within the gRPC handler. If the passed in "GreeterClient"
// doesn't go through the normal gRPC flow (creating a gRPC client etc.) then it will be up to the passed in
// "GreeterClient" to call the correct interceptors.
func RegisterGreeterHandlerClient(ctx context.Context, mux *runtime.ServeMux, client GreeterClient) error {
mux.Handle("POST", pattern_Greeter_SayHello_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
ctx, cancel := context.WithCancel(req.Context())
defer cancel()
inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
var err error
var annotatedContext context.Context
annotatedContext, err = runtime.AnnotateContext(ctx, mux, req, "/helloworld.Greeter/SayHello", runtime.WithHTTPPathPattern("/api/v1/greeter/hello"))
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
resp, md, err := request_Greeter_SayHello_0(annotatedContext, inboundMarshaler, client, req, pathParams)
annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
if err != nil {
runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
return
}
forward_Greeter_SayHello_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
})
return nil
}
var (
pattern_Greeter_SayHello_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"api", "v1", "greeter", "hello"}, ""))
)
var (
forward_Greeter_SayHello_0 = runtime.ForwardResponseMessage
)

371
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// Code generated by protoc-gen-validate. DO NOT EDIT.
// source: example/pb/example.proto
package pb
import (
"bytes"
"errors"
"fmt"
"net"
"net/mail"
"net/url"
"regexp"
"sort"
"strings"
"time"
"unicode/utf8"
"google.golang.org/protobuf/types/known/anypb"
)
// ensure the imports are used
var (
_ = bytes.MinRead
_ = errors.New("")
_ = fmt.Print
_ = utf8.UTFMax
_ = (*regexp.Regexp)(nil)
_ = (*strings.Reader)(nil)
_ = net.IPv4len
_ = time.Duration(0)
_ = (*url.URL)(nil)
_ = (*mail.Address)(nil)
_ = anypb.Any{}
_ = sort.Sort
)
// Validate checks the field values on HelloRequest with the rules defined in
// the proto definition for this message. If any rules are violated, the first
// error encountered is returned, or nil if there are no violations.
func (m *HelloRequest) Validate() error {
return m.validate(false)
}
// ValidateAll checks the field values on HelloRequest with the rules defined
// in the proto definition for this message. If any rules are violated, the
// result is a list of violation errors wrapped in HelloRequestMultiError, or
// nil if none found.
func (m *HelloRequest) ValidateAll() error {
return m.validate(true)
}
func (m *HelloRequest) validate(all bool) error {
if m == nil {
return nil
}
var errors []error
if l := utf8.RuneCountInString(m.GetName()); l < 2 || l > 40 {
err := HelloRequestValidationError{
field: "Name",
reason: "value length must be between 2 and 40 runes, inclusive",
}
if !all {
return err
}
errors = append(errors, err)
}
if len(errors) > 0 {
return HelloRequestMultiError(errors)
}
return nil
}
// HelloRequestMultiError is an error wrapping multiple validation errors
// returned by HelloRequest.ValidateAll() if the designated constraints aren't met.
type HelloRequestMultiError []error
// Error returns a concatenation of all the error messages it wraps.
func (m HelloRequestMultiError) Error() string {
var msgs []string
for _, err := range m {
msgs = append(msgs, err.Error())
}
return strings.Join(msgs, "; ")
}
// AllErrors returns a list of validation violation errors.
func (m HelloRequestMultiError) AllErrors() []error { return m }
// HelloRequestValidationError is the validation error returned by
// HelloRequest.Validate if the designated constraints aren't met.
type HelloRequestValidationError struct {
field string
reason string
cause error
key bool
}
// Field function returns field value.
func (e HelloRequestValidationError) Field() string { return e.field }
// Reason function returns reason value.
func (e HelloRequestValidationError) Reason() string { return e.reason }
// Cause function returns cause value.
func (e HelloRequestValidationError) Cause() error { return e.cause }
// Key function returns key value.
func (e HelloRequestValidationError) Key() bool { return e.key }
// ErrorName returns error name.
func (e HelloRequestValidationError) ErrorName() string { return "HelloRequestValidationError" }
// Error satisfies the builtin error interface
func (e HelloRequestValidationError) Error() string {
cause := ""
if e.cause != nil {
cause = fmt.Sprintf(" | caused by: %v", e.cause)
}
key := ""
if e.key {
key = "key for "
}
return fmt.Sprintf(
"invalid %sHelloRequest.%s: %s%s",
key,
e.field,
e.reason,
cause)
}
var _ error = HelloRequestValidationError{}
var _ interface {
Field() string
Reason() string
Key() bool
Cause() error
ErrorName() string
} = HelloRequestValidationError{}
// Validate checks the field values on HelloReply with the rules defined in the
// proto definition for this message. If any rules are violated, the first
// error encountered is returned, or nil if there are no violations.
func (m *HelloReply) Validate() error {
return m.validate(false)
}
// ValidateAll checks the field values on HelloReply with the rules defined in
// the proto definition for this message. If any rules are violated, the
// result is a list of violation errors wrapped in HelloReplyMultiError, or
// nil if none found.
func (m *HelloReply) ValidateAll() error {
return m.validate(true)
}
func (m *HelloReply) validate(all bool) error {
if m == nil {
return nil
}
var errors []error
// no validation rules for Message
if len(errors) > 0 {
return HelloReplyMultiError(errors)
}
return nil
}
// HelloReplyMultiError is an error wrapping multiple validation errors
// returned by HelloReply.ValidateAll() if the designated constraints aren't met.
type HelloReplyMultiError []error
// Error returns a concatenation of all the error messages it wraps.
func (m HelloReplyMultiError) Error() string {
var msgs []string
for _, err := range m {
msgs = append(msgs, err.Error())
}
return strings.Join(msgs, "; ")
}
// AllErrors returns a list of validation violation errors.
func (m HelloReplyMultiError) AllErrors() []error { return m }
// HelloReplyValidationError is the validation error returned by
// HelloReply.Validate if the designated constraints aren't met.
type HelloReplyValidationError struct {
field string
reason string
cause error
key bool
}
// Field function returns field value.
func (e HelloReplyValidationError) Field() string { return e.field }
// Reason function returns reason value.
func (e HelloReplyValidationError) Reason() string { return e.reason }
// Cause function returns cause value.
func (e HelloReplyValidationError) Cause() error { return e.cause }
// Key function returns key value.
func (e HelloReplyValidationError) Key() bool { return e.key }
// ErrorName returns error name.
func (e HelloReplyValidationError) ErrorName() string { return "HelloReplyValidationError" }
// Error satisfies the builtin error interface
func (e HelloReplyValidationError) Error() string {
cause := ""
if e.cause != nil {
cause = fmt.Sprintf(" | caused by: %v", e.cause)
}
key := ""
if e.key {
key = "key for "
}
return fmt.Sprintf(
"invalid %sHelloReply.%s: %s%s",
key,
e.field,
e.reason,
cause)
}
var _ error = HelloReplyValidationError{}
var _ interface {
Field() string
Reason() string
Key() bool
Cause() error
ErrorName() string
} = HelloReplyValidationError{}
// Validate checks the field values on HelloStreamRequest with the rules
// defined in the proto definition for this message. If any rules are
// violated, the first error encountered is returned, or nil if there are no violations.
func (m *HelloStreamRequest) Validate() error {
return m.validate(false)
}
// ValidateAll checks the field values on HelloStreamRequest with the rules
// defined in the proto definition for this message. If any rules are
// violated, the result is a list of violation errors wrapped in
// HelloStreamRequestMultiError, or nil if none found.
func (m *HelloStreamRequest) ValidateAll() error {
return m.validate(true)
}
func (m *HelloStreamRequest) validate(all bool) error {
if m == nil {
return nil
}
var errors []error
if l := utf8.RuneCountInString(m.GetName()); l < 2 || l > 40 {
err := HelloStreamRequestValidationError{
field: "Name",
reason: "value length must be between 2 and 40 runes, inclusive",
}
if !all {
return err
}
errors = append(errors, err)
}
if val := m.GetCount(); val < 1 || val > 10 {
err := HelloStreamRequestValidationError{
field: "Count",
reason: "value must be inside range [1, 10]",
}
if !all {
return err
}
errors = append(errors, err)
}
if len(errors) > 0 {
return HelloStreamRequestMultiError(errors)
}
return nil
}
// HelloStreamRequestMultiError is an error wrapping multiple validation errors
// returned by HelloStreamRequest.ValidateAll() if the designated constraints
// aren't met.
type HelloStreamRequestMultiError []error
// Error returns a concatenation of all the error messages it wraps.
func (m HelloStreamRequestMultiError) Error() string {
var msgs []string
for _, err := range m {
msgs = append(msgs, err.Error())
}
return strings.Join(msgs, "; ")
}
// AllErrors returns a list of validation violation errors.
func (m HelloStreamRequestMultiError) AllErrors() []error { return m }
// HelloStreamRequestValidationError is the validation error returned by
// HelloStreamRequest.Validate if the designated constraints aren't met.
type HelloStreamRequestValidationError struct {
field string
reason string
cause error
key bool
}
// Field function returns field value.
func (e HelloStreamRequestValidationError) Field() string { return e.field }
// Reason function returns reason value.
func (e HelloStreamRequestValidationError) Reason() string { return e.reason }
// Cause function returns cause value.
func (e HelloStreamRequestValidationError) Cause() error { return e.cause }
// Key function returns key value.
func (e HelloStreamRequestValidationError) Key() bool { return e.key }
// ErrorName returns error name.
func (e HelloStreamRequestValidationError) ErrorName() string {
return "HelloStreamRequestValidationError"
}
// Error satisfies the builtin error interface
func (e HelloStreamRequestValidationError) Error() string {
cause := ""
if e.cause != nil {
cause = fmt.Sprintf(" | caused by: %v", e.cause)
}
key := ""
if e.key {
key = "key for "
}
return fmt.Sprintf(
"invalid %sHelloStreamRequest.%s: %s%s",
key,
e.field,
e.reason,
cause)
}
var _ error = HelloStreamRequestValidationError{}
var _ interface {
Field() string
Reason() string
Key() bool
Cause() error
ErrorName() string
} = HelloStreamRequestValidationError{}

32
example/pb/example.proto Normal file
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@ -0,0 +1,32 @@
syntax = "proto3";
package helloworld;
option go_package = "go.linka.cloud/grpc-toolkit/example;pb";
import "google/api/annotations.proto";
import "validate/validate.proto";
import "defaults/defaults.proto";
service Greeter {
rpc SayHello (HelloRequest) returns (HelloReply) {
option (google.api.http) = {
post: "/api/v1/greeter/hello"
body: "*"
};
}
rpc SayHelloStream (HelloStreamRequest) returns (stream HelloReply) {}
}
message HelloRequest {
string name = 1 [(validate.rules).string = {min_len: 2, max_len: 40}];
}
message HelloReply {
string message = 1;
}
message HelloStreamRequest {
string name = 1 [(validate.rules).string = {min_len: 2, max_len: 40}];
int64 count = 2 [(validate.rules).int64 = {gte: 1, lte: 10}, (defaults.value).int64 = 10];
}

98
example/pb/example.swagger.json Normal file
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@ -0,0 +1,98 @@
{
"swagger": "2.0",
"info": {
"title": "example/pb/example.proto",
"version": "version not set"
},
"tags": [
{
"name": "Greeter"
}
],
"consumes": [
"application/json"
],
"produces": [
"application/json"
],
"paths": {
"/api/v1/greeter/hello": {
"post": {
"operationId": "Greeter_SayHello",
"responses": {
"200": {
"description": "A successful response.",
"schema": {
"$ref": "#/definitions/helloworldHelloReply"
}
},
"default": {
"description": "An unexpected error response.",
"schema": {
"$ref": "#/definitions/rpcStatus"
}
}
},
"parameters": [
{
"name": "body",
"in": "body",
"required": true,
"schema": {
"$ref": "#/definitions/helloworldHelloRequest"
}
}
],
"tags": [
"Greeter"
]
}
}
},
"definitions": {
"helloworldHelloReply": {
"type": "object",
"properties": {
"message": {
"type": "string"
}
}
},
"helloworldHelloRequest": {
"type": "object",
"properties": {
"name": {
"type": "string"
}
}
},
"protobufAny": {
"type": "object",
"properties": {
"@type": {
"type": "string"
}
},
"additionalProperties": {}
},
"rpcStatus": {
"type": "object",
"properties": {
"code": {
"type": "integer",
"format": "int32"
},
"message": {
"type": "string"
},
"details": {
"type": "array",
"items": {
"type": "object",
"$ref": "#/definitions/protobufAny"
}
}
}
}
}
}

163
example/pb/example_grpc.pb.go Normal file
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@ -0,0 +1,163 @@
// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
// versions:
// - protoc-gen-go-grpc v1.5.1
// - protoc v5.28.2
// source: example/pb/example.proto
package pb
import (
context "context"
grpc "google.golang.org/grpc"
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"
)
// This is a compile-time assertion to ensure that this generated file
// is compatible with the grpc package it is being compiled against.
// Requires gRPC-Go v1.64.0 or later.
const _ = grpc.SupportPackageIsVersion9
const (
Greeter_SayHello_FullMethodName = "/helloworld.Greeter/SayHello"
Greeter_SayHelloStream_FullMethodName = "/helloworld.Greeter/SayHelloStream"
)
// GreeterClient is the client API for Greeter service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
type GreeterClient interface {
SayHello(ctx context.Context, in *HelloRequest, opts ...grpc.CallOption) (*HelloReply, error)
SayHelloStream(ctx context.Context, in *HelloStreamRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[HelloReply], error)
}
type greeterClient struct {
cc grpc.ClientConnInterface
}
func NewGreeterClient(cc grpc.ClientConnInterface) GreeterClient {
return &greeterClient{cc}
}
func (c *greeterClient) SayHello(ctx context.Context, in *HelloRequest, opts ...grpc.CallOption) (*HelloReply, error) {
cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
out := new(HelloReply)
err := c.cc.Invoke(ctx, Greeter_SayHello_FullMethodName, in, out, cOpts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *greeterClient) SayHelloStream(ctx context.Context, in *HelloStreamRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[HelloReply], error) {
cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
stream, err := c.cc.NewStream(ctx, &Greeter_ServiceDesc.Streams[0], Greeter_SayHelloStream_FullMethodName, cOpts...)
if err != nil {
return nil, err
}
x := &grpc.GenericClientStream[HelloStreamRequest, HelloReply]{ClientStream: stream}
if err := x.ClientStream.SendMsg(in); err != nil {
return nil, err
}
if err := x.ClientStream.CloseSend(); err != nil {
return nil, err
}
return x, nil
}
// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
type Greeter_SayHelloStreamClient = grpc.ServerStreamingClient[HelloReply]
// GreeterServer is the server API for Greeter service.
// All implementations must embed UnimplementedGreeterServer
// for forward compatibility.
type GreeterServer interface {
SayHello(context.Context, *HelloRequest) (*HelloReply, error)
SayHelloStream(*HelloStreamRequest, grpc.ServerStreamingServer[HelloReply]) error
mustEmbedUnimplementedGreeterServer()
}
// UnimplementedGreeterServer must be embedded to have
// forward compatible implementations.
//
// NOTE: this should be embedded by value instead of pointer to avoid a nil
// pointer dereference when methods are called.
type UnimplementedGreeterServer struct{}
func (UnimplementedGreeterServer) SayHello(context.Context, *HelloRequest) (*HelloReply, error) {
return nil, status.Errorf(codes.Unimplemented, "method SayHello not implemented")
}
func (UnimplementedGreeterServer) SayHelloStream(*HelloStreamRequest, grpc.ServerStreamingServer[HelloReply]) error {
return status.Errorf(codes.Unimplemented, "method SayHelloStream not implemented")
}
func (UnimplementedGreeterServer) mustEmbedUnimplementedGreeterServer() {}
func (UnimplementedGreeterServer) testEmbeddedByValue() {}
// UnsafeGreeterServer may be embedded to opt out of forward compatibility for this service.
// Use of this interface is not recommended, as added methods to GreeterServer will
// result in compilation errors.
type UnsafeGreeterServer interface {
mustEmbedUnimplementedGreeterServer()
}
func RegisterGreeterServer(s grpc.ServiceRegistrar, srv GreeterServer) {
// If the following call pancis, it indicates UnimplementedGreeterServer was
// embedded by pointer and is nil. This will cause panics if an
// unimplemented method is ever invoked, so we test this at initialization
// time to prevent it from happening at runtime later due to I/O.
if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
t.testEmbeddedByValue()
}
s.RegisterService(&Greeter_ServiceDesc, srv)
}
func _Greeter_SayHello_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(HelloRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(GreeterServer).SayHello(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: Greeter_SayHello_FullMethodName,
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(GreeterServer).SayHello(ctx, req.(*HelloRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Greeter_SayHelloStream_Handler(srv interface{}, stream grpc.ServerStream) error {
m := new(HelloStreamRequest)
if err := stream.RecvMsg(m); err != nil {
return err
}
return srv.(GreeterServer).SayHelloStream(m, &grpc.GenericServerStream[HelloStreamRequest, HelloReply]{ServerStream: stream})
}
// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
type Greeter_SayHelloStreamServer = grpc.ServerStreamingServer[HelloReply]
// Greeter_ServiceDesc is the grpc.ServiceDesc for Greeter service.
// It's only intended for direct use with grpc.RegisterService,
// and not to be introspected or modified (even as a copy)
var Greeter_ServiceDesc = grpc.ServiceDesc{
ServiceName: "helloworld.Greeter",
HandlerType: (*GreeterServer)(nil),
Methods: []grpc.MethodDesc{
{
MethodName: "SayHello",
Handler: _Greeter_SayHello_Handler,
},
},
Streams: []grpc.StreamDesc{
{
StreamName: "SayHelloStream",
Handler: _Greeter_SayHelloStream_Handler,
ServerStreams: true,
},
},
Metadata: "example/pb/example.proto",
}

458
example/pb/example_vtproto.pb.go Normal file
View File

@ -0,0 +1,458 @@
// Code generated by protoc-gen-go-vtproto. DO NOT EDIT.
// protoc-gen-go-vtproto version: v0.6.1-0.20240917153116-6f2963f01587
// source: example/pb/example.proto
package pb
import (
fmt "fmt"
protohelpers "github.com/planetscale/vtprotobuf/protohelpers"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
io "io"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
func (m *HelloRequest) MarshalVT() (dAtA []byte, err error) {
if m == nil {
return nil, nil
}
size := m.SizeVT()
dAtA = make([]byte, size)
n, err := m.MarshalToSizedBufferVT(dAtA[:size])
if err != nil {
return nil, err
}
return dAtA[:n], nil
}
func (m *HelloRequest) MarshalToVT(dAtA []byte) (int, error) {
size := m.SizeVT()
return m.MarshalToSizedBufferVT(dAtA[:size])
}
func (m *HelloRequest) MarshalToSizedBufferVT(dAtA []byte) (int, error) {
if m == nil {
return 0, nil
}
i := len(dAtA)
_ = i
var l int
_ = l
if m.unknownFields != nil {
i -= len(m.unknownFields)
copy(dAtA[i:], m.unknownFields)
}
if len(m.Name) > 0 {
i -= len(m.Name)
copy(dAtA[i:], m.Name)
i = protohelpers.EncodeVarint(dAtA, i, uint64(len(m.Name)))
i--
dAtA[i] = 0xa
}
return len(dAtA) - i, nil
}
func (m *HelloReply) MarshalVT() (dAtA []byte, err error) {
if m == nil {
return nil, nil
}
size := m.SizeVT()
dAtA = make([]byte, size)
n, err := m.MarshalToSizedBufferVT(dAtA[:size])
if err != nil {
return nil, err
}
return dAtA[:n], nil
}
func (m *HelloReply) MarshalToVT(dAtA []byte) (int, error) {
size := m.SizeVT()
return m.MarshalToSizedBufferVT(dAtA[:size])
}
func (m *HelloReply) MarshalToSizedBufferVT(dAtA []byte) (int, error) {
if m == nil {
return 0, nil
}
i := len(dAtA)
_ = i
var l int
_ = l
if m.unknownFields != nil {
i -= len(m.unknownFields)
copy(dAtA[i:], m.unknownFields)
}
if len(m.Message) > 0 {
i -= len(m.Message)
copy(dAtA[i:], m.Message)
i = protohelpers.EncodeVarint(dAtA, i, uint64(len(m.Message)))
i--
dAtA[i] = 0xa
}
return len(dAtA) - i, nil
}
func (m *HelloStreamRequest) MarshalVT() (dAtA []byte, err error) {
if m == nil {
return nil, nil
}
size := m.SizeVT()
dAtA = make([]byte, size)
n, err := m.MarshalToSizedBufferVT(dAtA[:size])
if err != nil {
return nil, err
}
return dAtA[:n], nil
}
func (m *HelloStreamRequest) MarshalToVT(dAtA []byte) (int, error) {
size := m.SizeVT()
return m.MarshalToSizedBufferVT(dAtA[:size])
}
func (m *HelloStreamRequest) MarshalToSizedBufferVT(dAtA []byte) (int, error) {
if m == nil {
return 0, nil
}
i := len(dAtA)
_ = i
var l int
_ = l
if m.unknownFields != nil {
i -= len(m.unknownFields)
copy(dAtA[i:], m.unknownFields)
}
if m.Count != 0 {
i = protohelpers.EncodeVarint(dAtA, i, uint64(m.Count))
i--
dAtA[i] = 0x10
}
if len(m.Name) > 0 {
i -= len(m.Name)
copy(dAtA[i:], m.Name)
i = protohelpers.EncodeVarint(dAtA, i, uint64(len(m.Name)))
i--
dAtA[i] = 0xa
}
return len(dAtA) - i, nil
}
func (m *HelloRequest) SizeVT() (n int) {
if m == nil {
return 0
}
var l int
_ = l
l = len(m.Name)
if l > 0 {
n += 1 + l + protohelpers.SizeOfVarint(uint64(l))
}
n += len(m.unknownFields)
return n
}
func (m *HelloReply) SizeVT() (n int) {
if m == nil {
return 0
}
var l int
_ = l
l = len(m.Message)
if l > 0 {
n += 1 + l + protohelpers.SizeOfVarint(uint64(l))
}
n += len(m.unknownFields)
return n
}
func (m *HelloStreamRequest) SizeVT() (n int) {
if m == nil {
return 0
}
var l int
_ = l
l = len(m.Name)
if l > 0 {
n += 1 + l + protohelpers.SizeOfVarint(uint64(l))
}
if m.Count != 0 {
n += 1 + protohelpers.SizeOfVarint(uint64(m.Count))
}
n += len(m.unknownFields)
return n
}
func (m *HelloRequest) UnmarshalVT(dAtA []byte) error {
l := len(dAtA)
iNdEx := 0
for iNdEx < l {
preIndex := iNdEx
var wire uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return protohelpers.ErrIntOverflow
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
wire |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
fieldNum := int32(wire >> 3)
wireType := int(wire & 0x7)
if wireType == 4 {
return fmt.Errorf("proto: HelloRequest: wiretype end group for non-group")
}
if fieldNum <= 0 {
return fmt.Errorf("proto: HelloRequest: illegal tag %d (wire type %d)", fieldNum, wire)
}
switch fieldNum {
case 1:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Name", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return protohelpers.ErrIntOverflow
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
stringLen |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
intStringLen := int(stringLen)
if intStringLen < 0 {
return protohelpers.ErrInvalidLength
}
postIndex := iNdEx + intStringLen
if postIndex < 0 {
return protohelpers.ErrInvalidLength
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.Name = string(dAtA[iNdEx:postIndex])
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := protohelpers.Skip(dAtA[iNdEx:])
if err != nil {
return err
}
if (skippy < 0) || (iNdEx+skippy) < 0 {
return protohelpers.ErrInvalidLength
}
if (iNdEx + skippy) > l {
return io.ErrUnexpectedEOF
}
m.unknownFields = append(m.unknownFields, dAtA[iNdEx:iNdEx+skippy]...)
iNdEx += skippy
}
}
if iNdEx > l {
return io.ErrUnexpectedEOF
}
return nil
}
func (m *HelloReply) UnmarshalVT(dAtA []byte) error {
l := len(dAtA)
iNdEx := 0
for iNdEx < l {
preIndex := iNdEx
var wire uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return protohelpers.ErrIntOverflow
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
wire |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
fieldNum := int32(wire >> 3)
wireType := int(wire & 0x7)
if wireType == 4 {
return fmt.Errorf("proto: HelloReply: wiretype end group for non-group")
}
if fieldNum <= 0 {
return fmt.Errorf("proto: HelloReply: illegal tag %d (wire type %d)", fieldNum, wire)
}
switch fieldNum {
case 1:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Message", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return protohelpers.ErrIntOverflow
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
stringLen |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
intStringLen := int(stringLen)
if intStringLen < 0 {
return protohelpers.ErrInvalidLength
}
postIndex := iNdEx + intStringLen
if postIndex < 0 {
return protohelpers.ErrInvalidLength
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.Message = string(dAtA[iNdEx:postIndex])
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := protohelpers.Skip(dAtA[iNdEx:])
if err != nil {
return err
}
if (skippy < 0) || (iNdEx+skippy) < 0 {
return protohelpers.ErrInvalidLength
}
if (iNdEx + skippy) > l {
return io.ErrUnexpectedEOF
}
m.unknownFields = append(m.unknownFields, dAtA[iNdEx:iNdEx+skippy]...)
iNdEx += skippy
}
}
if iNdEx > l {
return io.ErrUnexpectedEOF
}
return nil
}
func (m *HelloStreamRequest) UnmarshalVT(dAtA []byte) error {
l := len(dAtA)
iNdEx := 0
for iNdEx < l {
preIndex := iNdEx
var wire uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return protohelpers.ErrIntOverflow
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
wire |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
fieldNum := int32(wire >> 3)
wireType := int(wire & 0x7)
if wireType == 4 {
return fmt.Errorf("proto: HelloStreamRequest: wiretype end group for non-group")
}
if fieldNum <= 0 {
return fmt.Errorf("proto: HelloStreamRequest: illegal tag %d (wire type %d)", fieldNum, wire)
}
switch fieldNum {
case 1:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Name", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return protohelpers.ErrIntOverflow
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
stringLen |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
intStringLen := int(stringLen)
if intStringLen < 0 {
return protohelpers.ErrInvalidLength
}
postIndex := iNdEx + intStringLen
if postIndex < 0 {
return protohelpers.ErrInvalidLength
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.Name = string(dAtA[iNdEx:postIndex])
iNdEx = postIndex
case 2:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field Count", wireType)
}
m.Count = 0
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return protohelpers.ErrIntOverflow
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
m.Count |= int64(b&0x7F) << shift
if b < 0x80 {
break
}
}
default:
iNdEx = preIndex
skippy, err := protohelpers.Skip(dAtA[iNdEx:])
if err != nil {
return err
}
if (skippy < 0) || (iNdEx+skippy) < 0 {
return protohelpers.ErrInvalidLength
}
if (iNdEx + skippy) > l {
return io.ErrUnexpectedEOF
}
m.unknownFields = append(m.unknownFields, dAtA[iNdEx:iNdEx+skippy]...)
iNdEx += skippy
}
}
if iNdEx > l {
return io.ErrUnexpectedEOF
}
return nil
}