grpc

Documentation

Overview

Package grpc is a generated protocol buffer package.

It is generated from these files:

fixtures_test.proto

It has these top-level messages:

FixtureRequest
FixtureReply

Package grpc provides functions to trace the google.golang.org/grpc package v1.2.

Example (Client)

package main

import (
	"log"

	grpctrace "gopkg.in/DataDog/dd-trace-go.v1/contrib/google.golang.org/grpc"

	"google.golang.org/grpc"
)

func main() {
	// Create the client interceptor using the grpc trace package.
	si := grpctrace.StreamClientInterceptor(grpctrace.WithServiceName("my-grpc-client"))
	ui := grpctrace.UnaryClientInterceptor(grpctrace.WithServiceName("my-grpc-client"))

	// Dial in using the created interceptor...
	conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure(),
		grpc.WithStreamInterceptor(si), grpc.WithUnaryInterceptor(ui))
	if err != nil {
		log.Fatal(err)
	}
	defer conn.Close()

	// And continue using the connection as normal.
}

Example (Server)

package main

import (
	"log"
	"net"

	grpctrace "gopkg.in/DataDog/dd-trace-go.v1/contrib/google.golang.org/grpc"

	"google.golang.org/grpc"
)

func main() {
	// Create a listener for the server.
	ln, err := net.Listen("tcp", ":50051")
	if err != nil {
		log.Fatal(err)
	}

	// Create the server interceptor using the grpc trace package.
	si := grpctrace.StreamServerInterceptor(grpctrace.WithServiceName("my-grpc-client"))
	ui := grpctrace.UnaryServerInterceptor(grpctrace.WithServiceName("my-grpc-client"))

	// Initialize the grpc server as normal, using the tracing interceptor.
	s := grpc.NewServer(grpc.StreamInterceptor(si), grpc.UnaryInterceptor(ui))

	// ... register your services

	// Start serving incoming connections.
	if err := s.Serve(ln); err != nil {
		log.Fatalf("failed to serve: %v", err)
	}
}

Index

• func RegisterFixtureServer(s *grpc1.Server, srv FixtureServer)
• func StreamClientInterceptor(opts ...InterceptorOption) grpc.StreamClientInterceptor
• func StreamServerInterceptor(opts ...InterceptorOption) grpc.StreamServerInterceptor
• func UnaryClientInterceptor(opts ...InterceptorOption) grpc.UnaryClientInterceptor
• func UnaryServerInterceptor(opts ...InterceptorOption) grpc.UnaryServerInterceptor
• type FixtureClient
  • func NewFixtureClient(cc *grpc1.ClientConn) FixtureClient
• type FixtureReply
  • func (*FixtureReply) Descriptor() ([]byte, []int)
  • func (m *FixtureReply) GetMessage() string
  • func (*FixtureReply) ProtoMessage()
  • func (m *FixtureReply) Reset()
  • func (m *FixtureReply) String() string
• type FixtureRequest
  • func (*FixtureRequest) Descriptor() ([]byte, []int)
  • func (m *FixtureRequest) GetName() string
  • func (*FixtureRequest) ProtoMessage()
  • func (m *FixtureRequest) Reset()
  • func (m *FixtureRequest) String() string
• type FixtureServer
• type Fixture_StreamPingClient
• type Fixture_StreamPingServer
• type InterceptorOption
  • func NoDebugStack() InterceptorOption
  • func WithServiceName(name string) InterceptorOption
  • func WithStreamCalls(enabled bool) InterceptorOption
  • func WithStreamMessages(enabled bool) InterceptorOption

Examples

• Package (Client)
• Package (Server)

Functions

func RegisterFixtureServer

func RegisterFixtureServer(s *grpc1.Server, srv FixtureServer)

func StreamClientInterceptor

func StreamClientInterceptor(opts ...InterceptorOption) grpc.StreamClientInterceptor

StreamClientInterceptor returns a grpc.StreamClientInterceptor which will trace client streams using the given set of options.

func StreamServerInterceptor

func StreamServerInterceptor(opts ...InterceptorOption) grpc.StreamServerInterceptor

StreamServerInterceptor will trace streaming requests to the given gRPC server.

func UnaryClientInterceptor

func UnaryClientInterceptor(opts ...InterceptorOption) grpc.UnaryClientInterceptor

UnaryClientInterceptor returns a grpc.UnaryClientInterceptor which will trace requests using the given set of options.

func UnaryServerInterceptor

func UnaryServerInterceptor(opts ...InterceptorOption) grpc.UnaryServerInterceptor

UnaryServerInterceptor will trace requests to the given grpc server.

Types

type FixtureClient

type FixtureClient interface {
	Ping(ctx context.Context, in *FixtureRequest, opts ...grpc1.CallOption) (*FixtureReply, error)
	StreamPing(ctx context.Context, opts ...grpc1.CallOption) (Fixture_StreamPingClient, error)
}

func NewFixtureClient

func NewFixtureClient(cc *grpc1.ClientConn) FixtureClient

type FixtureReply

type FixtureReply struct {
	Message string `protobuf:"bytes,1,opt,name=message" json:"message,omitempty"`
}

The response message containing the greetings

func (*FixtureReply) Descriptor

func (*FixtureReply) Descriptor() ([]byte, []int)

func (*FixtureReply) GetMessage

func (m *FixtureReply) GetMessage() string

func (*FixtureReply) ProtoMessage

func (*FixtureReply) ProtoMessage()

func (*FixtureReply) Reset

func (m *FixtureReply) Reset()

func (*FixtureReply) String

func (m *FixtureReply) String() string

type FixtureRequest

type FixtureRequest struct {
	Name string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
}

The request message containing the user's name.

func (*FixtureRequest) Descriptor

func (*FixtureRequest) Descriptor() ([]byte, []int)

func (*FixtureRequest) GetName

func (m *FixtureRequest) GetName() string

func (*FixtureRequest) ProtoMessage

func (*FixtureRequest) ProtoMessage()

func (*FixtureRequest) Reset

func (m *FixtureRequest) Reset()

func (*FixtureRequest) String

func (m *FixtureRequest) String() string

type FixtureServer

type FixtureServer interface {
	Ping(context.Context, *FixtureRequest) (*FixtureReply, error)
	StreamPing(Fixture_StreamPingServer) error
}

type Fixture_StreamPingClient

type Fixture_StreamPingClient interface {
	Send(*FixtureRequest) error
	Recv() (*FixtureReply, error)
	grpc1.ClientStream
}

type Fixture_StreamPingServer

type Fixture_StreamPingServer interface {
	Send(*FixtureReply) error
	Recv() (*FixtureRequest, error)
	grpc1.ServerStream
}

type InterceptorOption

type InterceptorOption func(*interceptorConfig)

InterceptorOption represents an option that can be passed to the grpc unary client and server interceptors.

func NoDebugStack

func NoDebugStack() InterceptorOption

NoDebugStack disables debug stacks for traces with errors. This is useful in situations where errors are frequent and the overhead of calling debug.Stack may affect performance.

func WithServiceName

func WithServiceName(name string) InterceptorOption

WithServiceName sets the given service name for the intercepted client.

func WithStreamCalls

func WithStreamCalls(enabled bool) InterceptorOption

WithStreamCalls enables or disables tracing of streaming calls.

func WithStreamMessages

func WithStreamMessages(enabled bool) InterceptorOption

WithStreamMessages enables or disables tracing of streaming messages.