feat: support client and validate

Makefile

@@ -1,5 +1,5 @@
-
 proto: ## protoc
 	protoc -I/usr/local/include -I$(GOPATH)/src/github.com/googleapis/googleapis\
- 	--proto_path=$(GOPATH)/src:. --go_out=. --go-http_out=. --go-grpc_out=.\
+ 	--proto_path=$(GOPATH)/src:. --go_out=. --go-http_out=validate=true:. --go-grpc_out=.\
+ 	--validate_out=lang=go,paths=source_relative:.\
  	 example/greeter/v1/hello.proto

README.md

@@ -23,5 +23,5 @@ click [here](https://yusank.github.io/posts/go-protoc-http/) to learn how to dev
 
 ## TODO
 
-- [ ] support [validate](https://github.com/envoyproxy/protoc-gen-validate)
-- [ ] gen client code.
+- [x] support [validate](https://github.com/envoyproxy/protoc-gen-validate)
+- [x] gen client code.

example/greeter/greeter.go

@@ -2,11 +2,14 @@ package greeter
 
 import (
 	"context"
+	"net/http"
+	"time"
 
 	"github.com/gin-gonic/gin"
 	"google.golang.org/grpc"
 
 	v1 "github.com/yusank/protoc-gen-go-http/example/greeter/v1"
+	phttp "github.com/yusank/protoc-gen-go-http/http"
 )
 
 // Greeter implement v1.HelloServer and v1.HelloHTTPHandler at same time
@@ -27,3 +30,20 @@ func register() {
 	v1.RegisterHelloServer(&grpc.Server{}, &Greeter{})
 	v1.RegisterHelloHTTPHandler(gin.Default().Group("/"), &Greeter{})
 }
+
+func callAsClient() {
+	cli, err := v1.NewHelloHTTPClient(nil, phttp.Retry(3, time.Millisecond*100))
+	if err != nil {
+		return
+	}
+
+	h := http.Header{}
+	h.Set("custom-key", "protoc")
+	rsp, err := cli.Add(context.Background(), &v1.AddRequest{}, phttp.Header(h))
+	if err != nil {
+		return
+	}
+
+	// handle response
+	_ = rsp.String()
+}