diff --git a/samples/http/go.mod b/samples/http/go.mod
index 88e95f75a..b4da920e5 100644
--- a/samples/http/go.mod
+++ b/samples/http/go.mod
@@ -4,14 +4,18 @@ go 1.14
 
 require (
 	contrib.go.opencensus.io/exporter/prometheus v0.1.0
+	github.com/cloudevents/sdk-go/binding/format/protobuf/v2 v2.5.0
 	github.com/cloudevents/sdk-go/observability/opencensus/v2 v2.5.0
 	github.com/cloudevents/sdk-go/v2 v2.5.0
 	github.com/google/uuid v1.1.1
 	github.com/gorilla/mux v1.7.3
 	github.com/kelseyhightower/envconfig v1.4.0
 	go.opencensus.io v0.22.3
+	google.golang.org/protobuf v1.26.0
 )
 
 replace github.com/cloudevents/sdk-go/v2 => ../../v2
 
+replace github.com/cloudevents/sdk-go/binding/format/protobuf/v2 => ../../binding/format/protobuf/v2
+
 replace github.com/cloudevents/sdk-go/observability/opencensus/v2 => ../../observability/opencensus/v2
diff --git a/samples/http/go.sum b/samples/http/go.sum
index 2aea98989..c04b474e0 100644
--- a/samples/http/go.sum
+++ b/samples/http/go.sum
@@ -24,14 +24,16 @@ github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:x
 github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
 github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
-github.com/golang/protobuf v1.4.2 h1:+Z5KGCizgyZCbGh1KZqA0fcLLkwbsjIzS4aV2v7wJX0=
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
+github.com/golang/protobuf v1.5.0 h1:LUVKkCeviFUMKqHa4tXIIij/lbhnMbP7Fn5wKdKkRh4=
+github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/go-cmp v0.5.0 h1:/QaMHBdZ26BB3SSst0Iwl10Epc+xhTquomWX0oZEB6w=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
@@ -156,8 +158,10 @@ google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
 google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
 google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
-google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
diff --git a/samples/http/sender-protobuf/main.go b/samples/http/sender-protobuf/main.go
new file mode 100644
index 000000000..bb99aba12
--- /dev/null
+++ b/samples/http/sender-protobuf/main.go
@@ -0,0 +1,47 @@
+//
+//  Copyright 2021 The CloudEvents Authors
+//  SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+import (
+	"context"
+	"log"
+
+	pbcloudevents "github.com/cloudevents/sdk-go/binding/format/protobuf/v2"
+	cloudevents "github.com/cloudevents/sdk-go/v2"
+	cehttp "github.com/cloudevents/sdk-go/v2/protocol/http"
+)
+
+func main() {
+	ctx := cloudevents.ContextWithTarget(context.Background(), "http://localhost:8080/")
+
+	p, err := cloudevents.NewHTTP()
+	if err != nil {
+		log.Fatalf("failed to create protocol: %s", err.Error())
+	}
+
+	c, err := cloudevents.NewClient(p, cloudevents.WithTimeNow(), cloudevents.WithUUIDs())
+	if err != nil {
+		log.Fatalf("failed to create client, %v", err)
+	}
+
+	for i := 0; i < 10; i++ {
+		data := &Sample{Value: "sample"}
+		e := cloudevents.NewEvent()
+		e.SetType("com.cloudevents.sample.sent")
+		e.SetSource("https://github.com/cloudevents/sdk-go/v2/samples/http/sender-protobuf")
+		e.SetDataSchema(string(data.ProtoReflect().Descriptor().FullName()))
+		_ = e.SetData(pbcloudevents.ContentTypeProtobuf, data)
+
+		res := c.Send(ctx, e)
+		if cloudevents.IsUndelivered(res) {
+			log.Printf("Failed to send: %v", res)
+		} else {
+			var httpResult *cehttp.Result
+			cloudevents.ResultAs(res, &httpResult)
+			log.Printf("Sent %d with status code %d", i, httpResult.StatusCode)
+		}
+	}
+}
diff --git a/samples/http/sender-protobuf/sample.pb.go b/samples/http/sender-protobuf/sample.pb.go
new file mode 100644
index 000000000..78fed5d97
--- /dev/null
+++ b/samples/http/sender-protobuf/sample.pb.go
@@ -0,0 +1,141 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.17.3
+// source: sample.proto
+
+package main
+
+import (
+	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 Sample struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value string `protobuf:"bytes,1,opt,name=value,proto3" json:"value,omitempty"`
+}
+
+func (x *Sample) Reset() {
+	*x = Sample{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_sample_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Sample) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Sample) ProtoMessage() {}
+
+func (x *Sample) ProtoReflect() protoreflect.Message {
+	mi := &file_sample_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 Sample.ProtoReflect.Descriptor instead.
+func (*Sample) Descriptor() ([]byte, []int) {
+	return file_sample_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Sample) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+var File_sample_proto protoreflect.FileDescriptor
+
+var file_sample_proto_rawDesc = []byte{
+	0x0a, 0x0c, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x02,
+	0x70, 0x62, 0x22, 0x1e, 0x0a, 0x06, 0x53, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x12, 0x14, 0x0a, 0x05,
+	0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61, 0x6c,
+	0x75, 0x65, 0x42, 0x08, 0x5a, 0x06, 0x2f, 0x3b, 0x6d, 0x61, 0x69, 0x6e, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_sample_proto_rawDescOnce sync.Once
+	file_sample_proto_rawDescData = file_sample_proto_rawDesc
+)
+
+func file_sample_proto_rawDescGZIP() []byte {
+	file_sample_proto_rawDescOnce.Do(func() {
+		file_sample_proto_rawDescData = protoimpl.X.CompressGZIP(file_sample_proto_rawDescData)
+	})
+	return file_sample_proto_rawDescData
+}
+
+var file_sample_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_sample_proto_goTypes = []interface{}{
+	(*Sample)(nil), // 0: pb.Sample
+}
+var file_sample_proto_depIdxs = []int32{
+	0, // [0:0] is the sub-list for method output_type
+	0, // [0:0] 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_sample_proto_init() }
+func file_sample_proto_init() {
+	if File_sample_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_sample_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Sample); 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_sample_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   1,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_sample_proto_goTypes,
+		DependencyIndexes: file_sample_proto_depIdxs,
+		MessageInfos:      file_sample_proto_msgTypes,
+	}.Build()
+	File_sample_proto = out.File
+	file_sample_proto_rawDesc = nil
+	file_sample_proto_goTypes = nil
+	file_sample_proto_depIdxs = nil
+}
diff --git a/samples/http/sender-protobuf/sample.proto b/samples/http/sender-protobuf/sample.proto
new file mode 100644
index 000000000..0efb776df
--- /dev/null
+++ b/samples/http/sender-protobuf/sample.proto
@@ -0,0 +1,7 @@
+syntax = "proto3";
+
+package pb;
+
+option go_package = "/;main";
+
+message Sample { string value = 1; }