diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index b8f1d26..d8390f9 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -20,11 +20,11 @@ jobs:
           - 8500:8500
     steps:
     - uses: actions/checkout@v3
-    
+
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.18
+        go-version: 1.22
 
     - name: Build
       run: go build -v ./...
diff --git a/docker/docker.sh b/docker/docker.sh
index d0c00c9..563e49c 100644
--- a/docker/docker.sh
+++ b/docker/docker.sh
@@ -4,3 +4,17 @@ docker run --restart=always -d -p 8500:8500 -p 8300:8300 -p 8301:8301 -p 8302:83
 # 验证
 # dig @192.168.3.109 -p 8600 consul.service.consul SRV
 
+docker run -d --name jaeger \
+  -e COLLECTOR_ZIPKIN_HOST_PORT=:9411 \
+  -e COLLECTOR_OTLP_ENABLED=true \
+  -p 6831:6831/udp \
+  -p 6832:6832/udp \
+  -p 5778:5778 \
+  -p 16686:16686 \
+  -p 4317:4317 \
+  -p 4318:4318 \
+  -p 14250:14250 \
+  -p 14268:14268 \
+  -p 14269:14269 \
+  -p 9411:9411 \
+  jaegertracing/all-in-one:1.54
diff --git a/errors/error_usage_test.go b/errors/error_usage_test.go
index 35ca5e0..86af5b7 100644
--- a/errors/error_usage_test.go
+++ b/errors/error_usage_test.go
@@ -61,28 +61,32 @@ func Controller1() error {
 测试Wrap 函数
 
 === RUN   TestWrap
-    error_user_test.go:21: call funcB failed
+
+	error_user_test.go:21: call funcB failed
+
 =============
-    error_user_test.go:25: func called error
-        logtest.funcB
-        	/Users/maozhongyu/code/logtest/error_user_test.go:17
-        logtest.funcA
-        	/Users/maozhongyu/code/logtest/error_user_test.go:10
-        logtest.TestWrap
-        	/Users/maozhongyu/code/logtest/error_user_test.go:25
-        testing.tRunner
-        	/Users/maozhongyu/go1.18.5/src/testing/testing.go:1439
-        runtime.goexit
-        	/Users/maozhongyu/go1.18.5/src/runtime/asm_amd64.s:1571
-        call funcB failed
-        logtest.funcA
-        	/Users/maozhongyu/code/logtest/error_user_test.go:11
-        logtest.TestWrap
-        	/Users/maozhongyu/code/logtest/error_user_test.go:25
-        testing.tRunner
-        	/Users/maozhongyu/go1.18.5/src/testing/testing.go:1439
-        runtime.goexit
-        	/Users/maozhongyu/go1.18.5/src/runtime/asm_amd64.s:1571
+
+	error_user_test.go:25: func called error
+	    logtest.funcB
+	    	/Users/maozhongyu/code/logtest/error_user_test.go:17
+	    logtest.funcA
+	    	/Users/maozhongyu/code/logtest/error_user_test.go:10
+	    logtest.TestWrap
+	    	/Users/maozhongyu/code/logtest/error_user_test.go:25
+	    testing.tRunner
+	    	/Users/maozhongyu/go1.18.5/src/testing/testing.go:1439
+	    runtime.goexit
+	    	/Users/maozhongyu/go1.18.5/src/runtime/asm_amd64.s:1571
+	    call funcB failed
+	    logtest.funcA
+	    	/Users/maozhongyu/code/logtest/error_user_test.go:11
+	    logtest.TestWrap
+	    	/Users/maozhongyu/code/logtest/error_user_test.go:25
+	    testing.tRunner
+	    	/Users/maozhongyu/go1.18.5/src/testing/testing.go:1439
+	    runtime.goexit
+	    	/Users/maozhongyu/go1.18.5/src/runtime/asm_amd64.s:1571
+
 --- PASS: TestWrap (0.00s)
 PASS
 */
@@ -117,13 +121,21 @@ func TestIs(t *testing.T) {
 error 1
 Service has error
 logtest.Controller1
+
 	/Users/maozhongyu/code/logtest/error_user_test.go:56
+
 logtest.TestAs
+
 	/Users/maozhongyu/code/logtest/error_user_test.go:116
+
 testing.tRunner
+
 	/Users/maozhongyu/go1.18.5/src/testing/testing.go:1439
+
 runtime.goexit
+
 	/Users/maozhongyu/go1.18.5/src/runtime/asm_amd64.s:1571
+
 -----------
 AS error
 */
diff --git a/errors/errors.go b/errors/errors.go
index 808d670..110f4ce 100644
--- a/errors/errors.go
+++ b/errors/errors.go
@@ -2,89 +2,89 @@
 //
 // The traditional error handling idiom in Go is roughly akin to
 //
-//     if err != nil {
-//             return err
-//     }
+//	if err != nil {
+//	        return err
+//	}
 //
 // which when applied recursively up the call stack results in error reports
 // without context or debugging information. The errors package allows
 // programmers to add context to the failure path in their code in a way
 // that does not destroy the original value of the error.
 //
-// Adding context to an error
+// # Adding context to an error
 //
 // The errors.Wrap function returns a new error that adds context to the
 // original error by recording a stack trace at the point Wrap is called,
 // together with the supplied message. For example
 //
-//     _, err := ioutil.ReadAll(r)
-//     if err != nil {
-//             return errors.Wrap(err, "read failed")
-//     }
+//	_, err := ioutil.ReadAll(r)
+//	if err != nil {
+//	        return errors.Wrap(err, "read failed")
+//	}
 //
 // If additional control is required, the errors.WithStack and
 // errors.WithMessage functions destructure errors.Wrap into its component
 // operations: annotating an error with a stack trace and with a message,
 // respectively.
 //
-// Retrieving the cause of an error
+// # Retrieving the cause of an error
 //
 // Using errors.Wrap constructs a stack of errors, adding context to the
 // preceding error. Depending on the nature of the error it may be necessary
 // to reverse the operation of errors.Wrap to retrieve the original error
 // for inspection. Any error value which implements this interface
 //
-//     type causer interface {
-//             Cause() error
-//     }
+//	type causer interface {
+//	        Cause() error
+//	}
 //
 // can be inspected by errors.Cause. errors.Cause will recursively retrieve
 // the topmost error that does not implement causer, which is assumed to be
 // the original cause. For example:
 //
-//     switch err := errors.Cause(err).(type) {
-//     case *MyError:
-//             // handle specifically
-//     default:
-//             // unknown error
-//     }
+//	switch err := errors.Cause(err).(type) {
+//	case *MyError:
+//	        // handle specifically
+//	default:
+//	        // unknown error
+//	}
 //
 // Although the causer interface is not exported by this package, it is
 // considered a part of its stable public interface.
 //
-// Formatted printing of errors
+// # Formatted printing of errors
 //
 // All error values returned from this package implement fmt.Formatter and can
 // be formatted by the fmt package. The following verbs are supported:
 //
-//     %s    print the error. If the error has a Cause it will be
-//           printed recursively.
-//     %v    see %s
-//     %+v   extended format. Each Frame of the error's StackTrace will
-//           be printed in detail.
+//	%s    print the error. If the error has a Cause it will be
+//	      printed recursively.
+//	%v    see %s
+//	%+v   extended format. Each Frame of the error's StackTrace will
+//	      be printed in detail.
 //
-// Retrieving the stack trace of an error or wrapper
+// # Retrieving the stack trace of an error or wrapper
 //
 // New, Errorf, Wrap, and Wrapf record a stack trace at the point they are
 // invoked. This information can be retrieved with the following interface:
 //
-//     type stackTracer interface {
-//             StackTrace() errors.StackTrace
-//     }
+//	type stackTracer interface {
+//	        StackTrace() errors.StackTrace
+//	}
 //
 // The returned errors.StackTrace type is defined as
 //
-//     type StackTrace []Frame
+//	type StackTrace []Frame
 //
 // The Frame type represents a call site in the stack trace. Frame supports
 // the fmt.Formatter interface that can be used for printing information about
 // the stack trace of this error. For example:
 //
-//     if err, ok := err.(stackTracer); ok {
-//             for _, f := range err.StackTrace() {
-//                     fmt.Printf("%+s:%d\n", f, f)
-//             }
-//     }
+//	if err, ok := err.(stackTracer); ok {
+//	        for _, f := range err.StackTrace() {
+//	                fmt.Printf("%+s:%d\n", f, f)
+//	        }
+//	}
 //
 // Although the stackTracer interface is not exported by this package, it is
 // considered a part of its stable public interface.
@@ -340,9 +340,9 @@ func (w *withCode) Unwrap() error { return w.cause }
 // An error value has a cause if it implements the following
 // interface:
 //
-//     type causer interface {
-//            Cause() error
-//     }
+//	type causer interface {
+//	       Cause() error
+//	}
 //
 // If the error does not implement Cause, the original error will
 // be returned. If the error is nil, nil will be returned without further
diff --git a/errors/format.go b/errors/format.go
index 15c176a..2f446e0 100644
--- a/errors/format.go
+++ b/errors/format.go
@@ -18,23 +18,26 @@ type formatInfo struct {
 // Format implements fmt.Formatter. https://golang.org/pkg/fmt/#hdr-Printing
 //
 // Verbs:
-//     %s  - Returns the user-safe error string mapped to the error code or
-//       ┊   the error message if none is specified.
-//     %v      Alias for %s
+//
+//	%s  - Returns the user-safe error string mapped to the error code or
+//	  ┊   the error message if none is specified.
+//	%v      Alias for %s
 //
 // Flags:
-//      #      JSON formatted output, useful for logging
-//      -      Output caller details, useful for troubleshooting
-//      +      Output full error stack details, useful for debugging
+//
+//	#      JSON formatted output, useful for logging
+//	-      Output caller details, useful for troubleshooting
+//	+      Output full error stack details, useful for debugging
 //
 // Examples:
-//      %s:    error for internal read B
-//      %v:    error for internal read B
-//      %-v:   error for internal read B - #0 [/xxx/main.go:12 (main.main)] (#100102) Internal Server Error
-//      %+v:   error for internal read B - #0 [/xxx/main.go:12 (main.main)] (#100102) Internal Server Error; error for internal read A - #1 [/xxx/main.go:35 (main.newErrorB)] (#100104) Validation failed
-//      %#v:   [{"error":"error for internal read B"}]
-//      %#-v:  [{"caller":"#0 /xxx/main.go:12 (main.main)","error":"error for internal read B","message":"(#100102) Internal Server Error"}]
-//      %#+v:  [{"caller":"#0 /xxx/main.go:12 (main.main)","error":"error for internal read B","message":"(#100102) Internal Server Error"},{"caller":"#1 /xxx/main.go:35 (main.newErrorB)","error":"error for internal read A","message":"(#100104) Validation failed"}]
+//
+//	%s:    error for internal read B
+//	%v:    error for internal read B
+//	%-v:   error for internal read B - #0 [/xxx/main.go:12 (main.main)] (#100102) Internal Server Error
+//	%+v:   error for internal read B - #0 [/xxx/main.go:12 (main.main)] (#100102) Internal Server Error; error for internal read A - #1 [/xxx/main.go:35 (main.newErrorB)] (#100104) Validation failed
+//	%#v:   [{"error":"error for internal read B"}]
+//	%#-v:  [{"caller":"#0 /xxx/main.go:12 (main.main)","error":"error for internal read B","message":"(#100102) Internal Server Error"}]
+//	%#+v:  [{"caller":"#0 /xxx/main.go:12 (main.main)","error":"error for internal read B","message":"(#100102) Internal Server Error"},{"caller":"#1 /xxx/main.go:35 (main.newErrorB)","error":"error for internal read A","message":"(#100104) Validation failed"}]
 func (w *withCode) Format(state fmt.State, verb rune) {
 	switch verb {
 	case 'v':
diff --git a/errors/stack.go b/errors/stack.go
index 779a834..82784d7 100644
--- a/errors/stack.go
+++ b/errors/stack.go
@@ -51,16 +51,16 @@ func (f Frame) name() string {
 
 // Format formats the frame according to the fmt.Formatter interface.
 //
-//    %s    source file
-//    %d    source line
-//    %n    function name
-//    %v    equivalent to %s:%d
+//	%s    source file
+//	%d    source line
+//	%n    function name
+//	%v    equivalent to %s:%d
 //
 // Format accepts flags that alter the printing of some verbs, as follows:
 //
-//    %+s   function name and path of source file relative to the compile time
-//          GOPATH separated by \n\t (<funcname>\n\t<path>)
-//    %+v   equivalent to %+s:%d
+//	%+s   function name and path of source file relative to the compile time
+//	      GOPATH separated by \n\t (<funcname>\n\t<path>)
+//	%+v   equivalent to %+s:%d
 func (f Frame) Format(s fmt.State, verb rune) {
 	switch verb {
 	case 's':
@@ -98,12 +98,12 @@ type StackTrace []Frame
 
 // Format formats the stack of Frames according to the fmt.Formatter interface.
 //
-//    %s	lists source files for each Frame in the stack
-//    %v	lists the source file and line number for each Frame in the stack
+//	%s	lists source files for each Frame in the stack
+//	%v	lists the source file and line number for each Frame in the stack
 //
 // Format accepts flags that alter the printing of some verbs, as follows:
 //
-//    %+v   Prints filename, function, and line number for each Frame in the stack.
+//	%+v   Prints filename, function, and line number for each Frame in the stack.
 func (st StackTrace) Format(s fmt.State, verb rune) {
 	switch verb {
 	case 'v':
diff --git a/example/README.md b/example/README.md
index 8c07c87..6f98ed2 100644
--- a/example/README.md
+++ b/example/README.md
@@ -1,9 +1,23 @@
 ## example 
 
-### 启动consul (如果是基于consul服务注册发现)
-
+### 安装依赖consul、jaeger
 ```shell
 docker run --restart=always -d -p 8500:8500 -p 8300:8300 -p 8301:8301 -p 8302:8302 -p 8600:8600/udp bitnami/consul:latest consul agent -dev -client=0.0.0.0
+
+docker run -d --name jaeger \
+  -e COLLECTOR_ZIPKIN_HOST_PORT=:9411 \
+  -e COLLECTOR_OTLP_ENABLED=true \
+  -p 6831:6831/udp \
+  -p 6832:6832/udp \
+  -p 5778:5778 \
+  -p 16686:16686 \
+  -p 4317:4317 \
+  -p 4318:4318 \
+  -p 14250:14250 \
+  -p 14268:14268 \
+  -p 14269:14269 \
+  -p 9411:9411 \
+  jaegertracing/all-in-one:1.54
 ```
 
 
diff --git a/example/app_server_test.go b/example/app_server_test.go
index db26f15..354bea8 100644
--- a/example/app_server_test.go
+++ b/example/app_server_test.go
@@ -1,4 +1,5 @@
-/**
+/*
+*
 User: cr-mao
 Date: 2024/2/19 12:48
 Email: crmao@qq.com
@@ -14,6 +15,7 @@ import (
 	"github.com/cr-mao/lori/log"
 	"github.com/cr-mao/lori/pprof_server"
 	"github.com/cr-mao/lori/registry/consul"
+	"github.com/cr-mao/lori/trace"
 	"github.com/hashicorp/consul/api"
 	"strconv"
 	"testing"
@@ -38,6 +40,14 @@ func registerServer(server *grpc.Server) {
 }
 
 func TestAppServer(t *testing.T) {
+
+	trace.InitAgent(trace.Options{
+		Name:     "lori_example",
+		Endpoint: "http://127.0.0.1:14268/api/traces",
+		Sampler:  1.0,
+		Batcher:  "jaeger",
+	})
+
 	c := api.DefaultConfig()
 	c.Address = "127.0.0.1:8500"
 	c.Scheme = "http"
@@ -46,7 +56,10 @@ func TestAppServer(t *testing.T) {
 		panic(err)
 	}
 	r := consul.New(cli, consul.WithHealthCheck(true))
-	grpcServer := grpc.NewServer(grpc.WithAddress("0.0.0.0:8081"))
+	grpcServer := grpc.NewServer(
+		grpc.WithAddress("0.0.0.0:8081"),
+		grpc.WithEnableTrace(true),
+	)
 	pprofPort, _ := netlib.AssignRandPort()
 	pprofServer := pprof_server.NewPProf("0.0.0.0:" + strconv.Itoa(pprofPort))
 	registerServer(grpcServer)
diff --git a/example/grpc_client_test.go b/example/grpc_client_test.go
index 55bee08..cc6ac4c 100644
--- a/example/grpc_client_test.go
+++ b/example/grpc_client_test.go
@@ -1,4 +1,5 @@
-/**
+/*
+*
 User: cr-mao
 Date: 2024/2/19 12:52
 Email: crmao@qq.com
@@ -11,6 +12,7 @@ import (
 	"github.com/cr-mao/lori/example/proto"
 	"github.com/cr-mao/lori/log"
 	"github.com/cr-mao/lori/registry/consul"
+	"github.com/cr-mao/lori/trace"
 	"github.com/hashicorp/consul/api"
 	"testing"
 	"time"
@@ -18,8 +20,15 @@ import (
 	"github.com/cr-mao/lori/transport/grpc"
 )
 
-// 基于服务发现的client
-func TestDiscoverClient(t *testing.T) {
+// 基于服务发现的client,并集成trace基于jaeger
+func TestDiscoverTraceClient(t *testing.T) {
+
+	trace.InitAgent(trace.Options{
+		Name:     "lori_example",
+		Endpoint: "http://127.0.0.1:14268/api/traces",
+		Sampler:  1.0,
+		Batcher:  "jaeger",
+	})
 	conf := api.DefaultConfig()
 	conf.Address = "127.0.0.1:8500"
 	conf.Scheme = "http"
@@ -32,6 +41,9 @@ func TestDiscoverClient(t *testing.T) {
 		grpc.WithClientDiscovery(r),
 		grpc.WithClientTimeout(time.Second*5),
 		grpc.WithClientEndpoint("discovery:///lori-app"),
+		grpc.WithClientEnableTracing(true),
+		// 自定义trace中间件
+		//grpc.WithClientUnaryInterceptor(grpc.UnaryTracingInterceptor),
 	)
 	if err != nil {
 		panic(err)
@@ -49,6 +61,9 @@ func TestDiscoverClient(t *testing.T) {
 		return
 	}
 	log.Info(resp.Message)
+
+	//  确保jager上报成功，不然会报 父span 找不到。
+	time.Sleep(time.Second * 10)
 }
 
 // 基于直连client
@@ -56,6 +71,7 @@ func TestDirectClient(t *testing.T) {
 	conn, err := grpc.DialInsecure(context.Background(),
 		grpc.WithClientTimeout(time.Second*5),
 		grpc.WithClientEndpoint("127.0.0.1:8081"),
+		grpc.WithClientEnableTracing(true),
 	)
 	if err != nil {
 		panic(err)
diff --git a/go.mod b/go.mod
index 12da8ea..b545e53 100644
--- a/go.mod
+++ b/go.mod
@@ -1,28 +1,37 @@
 module github.com/cr-mao/lori
 
-go 1.18
+go 1.22
 
 require (
 	github.com/gin-gonic/gin v1.7.7
-	github.com/google/uuid v1.3.0
+	github.com/google/uuid v1.4.0
 	github.com/hashicorp/consul/api v1.20.0
 	github.com/prometheus/client_golang v1.4.0
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.36.3
+	go.opentelemetry.io/otel v1.11.0
+	go.opentelemetry.io/otel/exporters/jaeger v1.11.0
+	go.opentelemetry.io/otel/exporters/zipkin v1.11.0
+	go.opentelemetry.io/otel/sdk v1.11.0
+	go.opentelemetry.io/otel/trace v1.11.0
 	go.uber.org/zap v1.20.0
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
-	google.golang.org/grpc v1.50.1
-	google.golang.org/protobuf v1.27.1
+	golang.org/x/sync v0.5.0
+	google.golang.org/grpc v1.61.0
+	google.golang.org/protobuf v1.32.0
 )
 
 require (
+	cloud.google.com/go/compute/metadata v0.2.3 // indirect
 	github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cespare/xxhash/v2 v2.1.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/fatih/color v1.9.0 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-playground/locales v0.13.0 // indirect
 	github.com/go-playground/universal-translator v0.17.0 // indirect
 	github.com/go-playground/validator/v10 v10.4.1 // indirect
-	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/hashicorp/go-cleanhttp v0.5.1 // indirect
 	github.com/hashicorp/go-hclog v0.12.0 // indirect
 	github.com/hashicorp/go-immutable-radix v1.0.0 // indirect
@@ -38,16 +47,17 @@ require (
 	github.com/mitchellh/mapstructure v1.4.1 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.1 // indirect
+	github.com/openzipkin/zipkin-go v0.4.0 // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect
 	github.com/prometheus/common v0.9.1 // indirect
 	github.com/prometheus/procfs v0.0.8 // indirect
 	github.com/ugorji/go/codec v1.1.7 // indirect
 	go.uber.org/atomic v1.7.0 // indirect
 	go.uber.org/multierr v1.6.0 // indirect
-	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 // indirect
-	golang.org/x/net v0.0.0-20211216030914-fe4d6282115f // indirect
-	golang.org/x/sys v0.0.0-20220728004956-3c1f35247d10 // indirect
-	golang.org/x/text v0.3.6 // indirect
-	google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 // indirect
-	gopkg.in/yaml.v2 v2.2.8 // indirect
+	golang.org/x/crypto v0.18.0 // indirect
+	golang.org/x/net v0.20.0 // indirect
+	golang.org/x/sys v0.16.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20231106174013-bbf56f31fb17 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 9fe2b6c..2c855e3 100644
--- a/go.sum
+++ b/go.sum
@@ -1,9 +1,18 @@
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@@ -17,17 +26,39 @@ github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
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@@ -36,6 +67,11 @@ github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2
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@@ -45,6 +81,7 @@ github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+
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@@ -58,23 +95,36 @@ github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrU
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@@ -92,11 +142,14 @@ github.com/hashicorp/go-rootcerts v1.0.2 h1:jzhAVGtqPKbwpyCPELlgNWhE1znq+qwJtW5O
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@@ -106,17 +159,27 @@ github.com/hashicorp/memberlist v0.5.0 h1:EtYPN8DpAURiapus508I4n9CzHs2W+8NZGbmmR
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@@ -147,11 +210,24 @@ github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lN
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@@ -172,23 +248,50 @@ github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R
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@@ -201,63 +304,93 @@ golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnf
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 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/metric/prometheus/grpcmetric/metric_instance.go b/metric/prometheus/grpcmetric/metric_instance.go
index 578a6c1..daa1b96 100644
--- a/metric/prometheus/grpcmetric/metric_instance.go
+++ b/metric/prometheus/grpcmetric/metric_instance.go
@@ -36,7 +36,7 @@ func (p *PromInstance) GrpcMetricInterceptors() []grpc.UnaryServerInterceptor {
 	return []grpc.UnaryServerInterceptor{p.serverUnaryPrometheusInterceptor}
 }
 
-//每个方法耗时的中间件
+// 每个方法耗时的中间件
 func (p *PromInstance) serverUnaryPrometheusInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo,
 	handler grpc.UnaryHandler) (resp interface{}, err error) {
 	startTime := time.Now()
diff --git a/pprof_server/pprof.go b/pprof_server/pprof.go
index be838db..b3e35ba 100644
--- a/pprof_server/pprof.go
+++ b/pprof_server/pprof.go
@@ -1,4 +1,5 @@
-/**
+/*
+*
 User: cr-mao
 Date: 2024/2/20 11:55
 Email: crmao@qq.com
diff --git a/trace/agent.go b/trace/agent.go
new file mode 100644
index 0000000..7c62b47
--- /dev/null
+++ b/trace/agent.go
@@ -0,0 +1,79 @@
+package trace
+
+import (
+	"sync"
+
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/exporters/jaeger"
+	"go.opentelemetry.io/otel/exporters/zipkin"
+	"go.opentelemetry.io/otel/propagation"
+	"go.opentelemetry.io/otel/sdk/resource"
+	"go.opentelemetry.io/otel/sdk/trace"
+	semconv "go.opentelemetry.io/otel/semconv/v1.12.0"
+
+	"github.com/cr-mao/lori/log"
+)
+
+/*
+初始化不同的export的设置
+*/
+
+const (
+	kindJaeger = "jaeger"
+	kindZipkin = "zipkin"
+)
+
+var (
+	//set ,struct 空结构体不占内存， zerobase
+	agents = make(map[string]struct{})
+	lock   sync.Mutex
+)
+
+func InitAgent(o Options) {
+	lock.Lock()
+	defer lock.Unlock()
+
+	_, ok := agents[o.Endpoint]
+	if ok {
+		return
+	}
+	err := startAgent(o)
+	if err != nil {
+		return
+	}
+	agents[o.Endpoint] = struct{}{}
+}
+
+func startAgent(o Options) error {
+	var sexp trace.SpanExporter
+	var err error
+
+	opts := []trace.TracerProviderOption{
+		trace.WithSampler(trace.ParentBased(trace.TraceIDRatioBased(o.Sampler))),
+		trace.WithResource(resource.NewSchemaless(semconv.ServiceNameKey.String(o.Name))),
+	}
+
+	if len(o.Endpoint) > 0 {
+		switch o.Batcher {
+		case kindJaeger:
+			sexp, err = jaeger.New(jaeger.WithCollectorEndpoint(jaeger.WithEndpoint(o.Endpoint)))
+			if err != nil {
+				return err
+			}
+		case kindZipkin:
+			sexp, err = zipkin.New(o.Endpoint)
+			if err != nil {
+				return err
+			}
+		}
+		opts = append(opts, trace.WithBatcher(sexp))
+	}
+
+	tp := trace.NewTracerProvider(opts...)
+	otel.SetTracerProvider(tp)
+	otel.SetTextMapPropagator(propagation.NewCompositeTextMapPropagator(propagation.TraceContext{}, propagation.Baggage{}))
+	otel.SetErrorHandler(otel.ErrorHandlerFunc(func(err error) {
+		log.Errorf("[otel] error: %v", err)
+	}))
+	return nil
+}
diff --git a/trace/attributes.go b/trace/attributes.go
new file mode 100644
index 0000000..6da2e68
--- /dev/null
+++ b/trace/attributes.go
@@ -0,0 +1,40 @@
+package trace
+
+import (
+	"go.opentelemetry.io/otel/attribute"
+	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
+	gcodes "google.golang.org/grpc/codes"
+)
+
+const (
+	// GRPCStatusCodeKey is convention for numeric status code of a gRPC request.
+	GRPCStatusCodeKey = attribute.Key("rpc.grpc.status_code")
+	// RPCNameKey is the name of message transmitted or received.
+	RPCNameKey = attribute.Key("name")
+	// RPCMessageTypeKey is the type of message transmitted or received.
+	RPCMessageTypeKey = attribute.Key("message.type")
+	// RPCMessageIDKey is the identifier of message transmitted or received.
+	RPCMessageIDKey = attribute.Key("message.id")
+	// RPCMessageCompressedSizeKey is the compressed size of the message transmitted or received in bytes.
+	RPCMessageCompressedSizeKey = attribute.Key("message.compressed_size")
+	// RPCMessageUncompressedSizeKey is the uncompressed size of the message
+	// transmitted or received in bytes.
+	RPCMessageUncompressedSizeKey = attribute.Key("message.uncompressed_size")
+)
+
+// Semantic conventions for common RPC attributes.
+var (
+	// RPCSystemGRPC is the semantic convention for gRPC as the remoting system.
+	RPCSystemGRPC = semconv.RPCSystemKey.String("grpc")
+	// RPCNameMessage is the semantic convention for a message named message.
+	RPCNameMessage = RPCNameKey.String("message")
+	// RPCMessageTypeSent is the semantic conventions for sent RPC message types.
+	RPCMessageTypeSent = RPCMessageTypeKey.String("SENT")
+	// RPCMessageTypeReceived is the semantic conventions for the received RPC message types.
+	RPCMessageTypeReceived = RPCMessageTypeKey.String("RECEIVED")
+)
+
+// StatusCodeAttr returns an attribute.KeyValue that represents the give c.
+func StatusCodeAttr(c gcodes.Code) attribute.KeyValue {
+	return GRPCStatusCodeKey.Int64(int64(c))
+}
diff --git a/trace/message.go b/trace/message.go
new file mode 100644
index 0000000..de0c5f9
--- /dev/null
+++ b/trace/message.go
@@ -0,0 +1,38 @@
+package trace
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/trace"
+	"google.golang.org/protobuf/proto"
+)
+
+const messageEvent = "message"
+
+var (
+	// MessageSent is the type of sent messages.
+	MessageSent = messageType(RPCMessageTypeSent)
+	// MessageReceived is the type of received messages.
+	MessageReceived = messageType(RPCMessageTypeReceived)
+)
+
+type messageType attribute.KeyValue
+
+// Event adds an event of the messageType to the span associated with the
+// passed context with id and size (if message is a proto message).
+func (m messageType) Event(ctx context.Context, id int, message interface{}) {
+	span := trace.SpanFromContext(ctx)
+	if p, ok := message.(proto.Message); ok {
+		span.AddEvent(messageEvent, trace.WithAttributes(
+			attribute.KeyValue(m),
+			RPCMessageIDKey.Int(id),
+			RPCMessageUncompressedSizeKey.Int(proto.Size(p)),
+		))
+	} else {
+		span.AddEvent(messageEvent, trace.WithAttributes(
+			attribute.KeyValue(m),
+			RPCMessageIDKey.Int(id),
+		))
+	}
+}
diff --git a/trace/option.go b/trace/option.go
new file mode 100644
index 0000000..27ab8d7
--- /dev/null
+++ b/trace/option.go
@@ -0,0 +1,17 @@
+package trace
+
+const TraceName = "lori"
+
+type Options struct {
+	Name     string  `json:"name"`
+	Endpoint string  `json:"endpoint"`
+	Sampler  float64 `json:"sampler"`
+	Batcher  string  `json:"batcher"`
+}
+
+/*
+	Name:     "服务名",
+	Endpoint: "http://127.0.0.1:14268/api/traces",
+	Sampler:  1.0,
+	Batcher:  "jaeger",
+*/
diff --git a/trace/tracer.go b/trace/tracer.go
new file mode 100644
index 0000000..8d5fed6
--- /dev/null
+++ b/trace/tracer.go
@@ -0,0 +1,56 @@
+package trace
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel/baggage"
+	"go.opentelemetry.io/otel/propagation"
+	sdktrace "go.opentelemetry.io/otel/trace"
+	"google.golang.org/grpc/metadata"
+)
+
+// assert that metadataSupplier implements the TextMapCarrier interface
+var _ propagation.TextMapCarrier = (*metadataSupplier)(nil)
+
+type metadataSupplier struct {
+	metadata *metadata.MD
+}
+
+func (s *metadataSupplier) Get(key string) string {
+	values := s.metadata.Get(key)
+	if len(values) == 0 {
+		return ""
+	}
+
+	return values[0]
+}
+
+func (s *metadataSupplier) Set(key, value string) {
+	s.metadata.Set(key, value)
+}
+
+func (s *metadataSupplier) Keys() []string {
+	out := make([]string, 0, len(*s.metadata))
+	for key := range *s.metadata {
+		out = append(out, key)
+	}
+
+	return out
+}
+
+// Inject injects the metadata into ctx.
+func Inject(ctx context.Context, p propagation.TextMapPropagator, metadata *metadata.MD) {
+	p.Inject(ctx, &metadataSupplier{
+		metadata: metadata,
+	})
+}
+
+// Extract extracts the metadata from ctx.
+func Extract(ctx context.Context, p propagation.TextMapPropagator, metadata *metadata.MD) (
+	baggage.Baggage, sdktrace.SpanContext) {
+	ctx = p.Extract(ctx, &metadataSupplier{
+		metadata: metadata,
+	})
+
+	return baggage.FromContext(ctx), sdktrace.SpanContextFromContext(ctx)
+}
diff --git a/trace/utils.go b/trace/utils.go
new file mode 100644
index 0000000..b039f87
--- /dev/null
+++ b/trace/utils.go
@@ -0,0 +1,69 @@
+package trace
+
+import (
+	"context"
+	"net"
+	"strings"
+
+	"go.opentelemetry.io/otel/attribute"
+	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
+	"google.golang.org/grpc/peer"
+)
+
+const localhost = "127.0.0.1"
+
+// PeerFromCtx returns the peer from ctx.
+func PeerFromCtx(ctx context.Context) string {
+	p, ok := peer.FromContext(ctx)
+	if !ok || p == nil {
+		return ""
+	}
+
+	return p.Addr.String()
+}
+
+// SpanInfo returns the span info.
+func SpanInfo(fullMethod, peerAddress string) (string, []attribute.KeyValue) {
+	attrs := []attribute.KeyValue{RPCSystemGRPC}
+	name, mAttrs := ParseFullMethod(fullMethod)
+	attrs = append(attrs, mAttrs...)
+	attrs = append(attrs, PeerAttr(peerAddress)...)
+	return name, attrs
+}
+
+// ParseFullMethod returns the method name and attributes.
+func ParseFullMethod(fullMethod string) (string, []attribute.KeyValue) {
+	name := strings.TrimLeft(fullMethod, "/")
+	parts := strings.SplitN(name, "/", 2)
+	if len(parts) != 2 {
+		// Invalid format, does not follow `/package.service/method`.
+		return name, []attribute.KeyValue(nil)
+	}
+
+	var attrs []attribute.KeyValue
+	if service := parts[0]; service != "" {
+		attrs = append(attrs, semconv.RPCServiceKey.String(service))
+	}
+	if method := parts[1]; method != "" {
+		attrs = append(attrs, semconv.RPCMethodKey.String(method))
+	}
+
+	return name, attrs
+}
+
+// PeerAttr returns the peer attributes.
+func PeerAttr(addr string) []attribute.KeyValue {
+	host, port, err := net.SplitHostPort(addr)
+	if err != nil {
+		return nil
+	}
+
+	if len(host) == 0 {
+		host = localhost
+	}
+
+	return []attribute.KeyValue{
+		semconv.NetPeerIPKey.String(host),
+		semconv.NetPeerPortKey.String(port),
+	}
+}
diff --git a/transport/grpc/client.go b/transport/grpc/client.go
index bddb295..8e4a547 100644
--- a/transport/grpc/client.go
+++ b/transport/grpc/client.go
@@ -5,6 +5,7 @@ import (
 	"crypto/tls"
 	"time"
 
+	"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"
 	grpcinsecure "google.golang.org/grpc/credentials/insecure"
@@ -31,7 +32,6 @@ type clientOptions struct {
 
 	balancerName  string
 	enableTracing bool
-	//enableMetrics bool
 }
 
 func WithClientMetric(metric metric.GrpcClientMetric) ClientOption {
@@ -40,7 +40,7 @@ func WithClientMetric(metric metric.GrpcClientMetric) ClientOption {
 	}
 }
 
-func WithEnableTracing(enable bool) ClientOption {
+func WithClientEnableTracing(enable bool) ClientOption {
 	return func(o *clientOptions) {
 		o.enableTracing = enable
 	}
@@ -122,9 +122,9 @@ func dial(ctx context.Context, insecure bool, opts ...ClientOption) (*grpc.Clien
 	ints := []grpc.UnaryClientInterceptor{
 		clientTimeoutInterceptor(options.timeout),
 	}
-	//if options.enableTracing {
-	//	ints = append(ints, otelgrpc.UnaryClientInterceptor())
-	//}
+	if options.enableTracing {
+		ints = append(ints, otelgrpc.UnaryClientInterceptor())
+	}
 
 	streamInts := []grpc.StreamClientInterceptor{}
 
diff --git a/transport/grpc/client_tracing_interceptor.go b/transport/grpc/client_tracing_interceptor.go
new file mode 100644
index 0000000..3f8c848
--- /dev/null
+++ b/transport/grpc/client_tracing_interceptor.go
@@ -0,0 +1,227 @@
+package grpc
+
+import (
+	"context"
+	"fmt"
+	"io"
+
+	"github.com/gin-gonic/gin"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/propagation"
+	"go.opentelemetry.io/otel/trace"
+	"google.golang.org/grpc"
+	gcodes "google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+
+	trace2 "github.com/cr-mao/lori/trace"
+)
+
+const (
+	receiveEndEvent streamEventType = iota
+	errorEvent
+)
+
+// UnaryTracingInterceptor returns a grpc.UnaryClientInterceptor for opentelemetry.
+func UnaryTracingInterceptor(ctx context.Context, method string, req, reply interface{},
+	cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
+	ctx, span := startSpan(ctx, method, cc.Target())
+	defer span.End()
+
+	trace2.MessageSent.Event(ctx, 1, req)
+	trace2.MessageReceived.Event(ctx, 1, reply)
+
+	if err := invoker(ctx, method, req, reply, cc, opts...); err != nil {
+		s, ok := status.FromError(err)
+		if ok {
+			span.SetStatus(codes.Error, s.Message())
+			span.SetAttributes(trace2.StatusCodeAttr(s.Code()))
+		} else {
+			span.SetStatus(codes.Error, err.Error())
+		}
+		return err
+	}
+
+	span.SetAttributes(trace2.StatusCodeAttr(gcodes.OK))
+
+	return nil
+}
+
+// StreamTracingInterceptor returns a grpc.StreamClientInterceptor for opentelemetry.
+func StreamTracingInterceptor(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn,
+	method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
+	ctx, span := startSpan(ctx, method, cc.Target())
+	s, err := streamer(ctx, desc, cc, method, opts...)
+	if err != nil {
+		st, ok := status.FromError(err)
+		if ok {
+			span.SetStatus(codes.Error, st.Message())
+			span.SetAttributes(trace2.StatusCodeAttr(st.Code()))
+		} else {
+			span.SetStatus(codes.Error, err.Error())
+		}
+		span.End()
+		return s, err
+	}
+
+	stream := wrapClientStream(ctx, s, desc)
+
+	go func() {
+		if err := <-stream.Finished; err != nil {
+			s, ok := status.FromError(err)
+			if ok {
+				span.SetStatus(codes.Error, s.Message())
+				span.SetAttributes(trace2.StatusCodeAttr(s.Code()))
+			} else {
+				span.SetStatus(codes.Error, err.Error())
+			}
+		} else {
+			span.SetAttributes(trace2.StatusCodeAttr(gcodes.OK))
+		}
+
+		span.End()
+	}()
+
+	return stream, nil
+}
+
+type (
+	streamEventType int
+
+	streamEvent struct {
+		Type streamEventType
+		Err  error
+	}
+
+	clientStream struct {
+		grpc.ClientStream
+		Finished          chan error
+		desc              *grpc.StreamDesc
+		events            chan streamEvent
+		eventsDone        chan struct{}
+		receivedMessageID int
+		sentMessageID     int
+	}
+)
+
+func (w *clientStream) CloseSend() error {
+	err := w.ClientStream.CloseSend()
+	if err != nil {
+		w.sendStreamEvent(errorEvent, err)
+	}
+
+	return err
+}
+
+func (w *clientStream) Header() (metadata.MD, error) {
+	md, err := w.ClientStream.Header()
+	if err != nil {
+		w.sendStreamEvent(errorEvent, err)
+	}
+
+	return md, err
+}
+
+func (w *clientStream) RecvMsg(m interface{}) error {
+	err := w.ClientStream.RecvMsg(m)
+	if err == nil && !w.desc.ServerStreams {
+		w.sendStreamEvent(receiveEndEvent, nil)
+	} else if err == io.EOF {
+		w.sendStreamEvent(receiveEndEvent, nil)
+	} else if err != nil {
+		w.sendStreamEvent(errorEvent, err)
+	} else {
+		w.receivedMessageID++
+		trace2.MessageReceived.Event(w.Context(), w.receivedMessageID, m)
+	}
+
+	return err
+}
+
+func (w *clientStream) SendMsg(m interface{}) error {
+	err := w.ClientStream.SendMsg(m)
+	w.sentMessageID++
+	trace2.MessageSent.Event(w.Context(), w.sentMessageID, m)
+	if err != nil {
+		w.sendStreamEvent(errorEvent, err)
+	}
+
+	return err
+}
+
+func (w *clientStream) sendStreamEvent(eventType streamEventType, err error) {
+	select {
+	case <-w.eventsDone:
+	case w.events <- streamEvent{Type: eventType, Err: err}:
+	}
+}
+
+func startSpan(ctx context.Context, method, target string) (context.Context, trace.Span) {
+	var md metadata.MD
+	requestMetadata, ok := metadata.FromOutgoingContext(ctx)
+	//requestMetadata, ok := metadata.FromIncomingContext(ctx)
+	if ok {
+		md = requestMetadata.Copy()
+	} else {
+		md = metadata.MD{}
+	}
+
+	var tracer trace.Tracer
+	switch v := ctx.(type) {
+	case *gin.Context:
+		propagator := otel.GetTextMapPropagator()
+		ctx = propagator.Extract(ctx, propagation.HeaderCarrier(ctx.(*gin.Context).Request.Header))
+		if tracerin, ok := v.Get("otel-go-contrib-tracer"); ok {
+			tracer = tracerin.(trace.Tracer)
+		} else {
+			tracer = otel.Tracer(trace2.TraceName)
+		}
+	default:
+		tracer = otel.Tracer(trace2.TraceName)
+	}
+
+	name, attr := trace2.SpanInfo(method, target)
+	ctx, span := tracer.Start(ctx, name, trace.WithSpanKind(trace.SpanKindClient),
+		trace.WithAttributes(attr...))
+	trace2.Inject(ctx, otel.GetTextMapPropagator(), &md)
+	ctx = metadata.NewOutgoingContext(ctx, md)
+	fmt.Println(span.SpanContext().SpanID().String())
+	return ctx, span
+}
+
+// wrapClientStream wraps s with given ctx and desc.
+func wrapClientStream(ctx context.Context, s grpc.ClientStream, desc *grpc.StreamDesc) *clientStream {
+	events := make(chan streamEvent)
+	eventsDone := make(chan struct{})
+	finished := make(chan error)
+
+	go func() {
+		defer close(eventsDone)
+
+		for {
+			select {
+			case event := <-events:
+				switch event.Type {
+				case receiveEndEvent:
+					finished <- nil
+					return
+				case errorEvent:
+					finished <- event.Err
+					return
+				}
+			case <-ctx.Done():
+				finished <- ctx.Err()
+				return
+			}
+		}
+	}()
+
+	return &clientStream{
+		ClientStream: s,
+		desc:         desc,
+		events:       events,
+		eventsDone:   eventsDone,
+		Finished:     finished,
+	}
+}
diff --git a/transport/grpc/resolver/discovery/resolver.go b/transport/grpc/resolver/discovery/resolver.go
index d601555..cd163ab 100644
--- a/transport/grpc/resolver/discovery/resolver.go
+++ b/transport/grpc/resolver/discovery/resolver.go
@@ -2,7 +2,6 @@ package discovery
 
 import (
 	"context"
-	"encoding/json"
 	"errors"
 	"net/url"
 	"strconv"
@@ -78,8 +77,8 @@ func (r *discoveryResolver) update(ins []*registry.ServiceInstance) {
 	if err != nil {
 		log.Errorf("[resolver] failed to update state: %s", err)
 	}
-	b, _ := json.Marshal(ins)
-	log.Infof("[resolver] update instances: %s", b)
+	//b, _ := json.Marshal(ins)
+	//log.Infof("[resolver] update instances: %s", b)
 }
 
 func (r *discoveryResolver) Close() {
diff --git a/transport/grpc/server.go b/transport/grpc/server.go
index ad3902c..784603a 100644
--- a/transport/grpc/server.go
+++ b/transport/grpc/server.go
@@ -7,6 +7,7 @@ import (
 	"net/url"
 	"time"
 
+	"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
 	//apimd "github.com/cr-mao/lori/api/metadata"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"
@@ -38,10 +39,10 @@ type Server struct {
 	timeout    time.Duration
 	health     *health.Server // 健康检测server
 	//metadata      *apimd.Server
-	endpoint *url.URL          // url
-	metric   metric.GrpcMetric //metric 接口，可以传可不传
-
-	err error
+	endpoint      *url.URL          // url
+	metric        metric.GrpcMetric //metric 接口，可以传可不传
+	enableTracing bool              //是否开启链路追踪
+	err           error
 }
 
 // NewServer creates a gRPC server by options.
@@ -61,6 +62,9 @@ func NewServer(opts ...ServerOption) *Server {
 		srv.unaryServerInterceptor(), //metadata 方便获取， 请求超时控制中间件
 		unaryErrorLogInterceptor,     //发生错误的日志
 	}
+	if srv.enableTracing {
+		unaryInts = append(unaryInts, otelgrpc.UnaryServerInterceptor())
+	}
 
 	if srv.metric != nil {
 		unaryInts = append(unaryInts, srv.metric.GrpcMetricInterceptors()...)
@@ -172,11 +176,12 @@ func WithAddress(address string) ServerOption {
 	}
 }
 
-//func WithEnableMetrics(enableMetrics bool) ServerOption {
-//	return func(o *Server) {
-//		o.enableMetrics = enableMetrics
-//	}
-//}
+// 是否开启链路追踪
+func WithEnableTrace(enableTraceing bool) ServerOption {
+	return func(o *Server) {
+		o.enableTracing = enableTraceing
+	}
+}
 
 // Listener with server lis
 func WithListener(lis net.Listener) ServerOption {
diff --git a/transport/grpc/server_interceptor.go b/transport/grpc/server_interceptor.go
index e6e20c6..cf4ef54 100644
--- a/transport/grpc/server_interceptor.go
+++ b/transport/grpc/server_interceptor.go
@@ -9,7 +9,7 @@ import (
 	"github.com/cr-mao/lori/transport"
 )
 
-//metadata方便获取，请求超时中间件
+// metadata方便获取，请求超时中间件
 // unaryServerInterceptor is a gRPC unary server interceptor
 func (s *Server) unaryServerInterceptor() grpc.UnaryServerInterceptor {
 	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
diff --git a/transport/http/middlewares/middleware.go b/transport/http/middlewares/middleware.go
index 976c5c2..526b559 100644
--- a/transport/http/middlewares/middleware.go
+++ b/transport/http/middlewares/middleware.go
@@ -4,7 +4,7 @@ import (
 	"github.com/gin-gonic/gin"
 )
 
-//外部可以用
+// 外部可以用
 const (
 	RECOVERY string = "recovery"
 	CORS     string = "cors"