/
main.go
82 lines (71 loc) · 1.75 KB
/
main.go
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package main
import (
"context"
greetv1 "example/gen/greet/v1"
"example/gen/greet/v1/greetv1connect"
"fmt"
"log"
"net/http"
"github.com/bufbuild/connect-go"
"golang.org/x/net/http2/h2c"
"golang.org/x/net/http2"
"flag"
)
type GreetServer struct {
ServerName string
}
func (s *GreetServer) Greet(
ctx context.Context,
req *connect.Request[greetv1.GreetRequest],
) (*connect.Response[greetv1.GreetResponse], error) {
log.Println("Request headers: ", req.Header())
res := connect.NewResponse(&greetv1.GreetResponse{
Greeting: fmt.Sprintf("Hello, %s! by.%s", req.Msg.Name, s.ServerName),
})
res.Header().Set("Greet-Version", "v1")
return res, nil
}
func ServerRoutine(myPort int, serverName string) {
server := &GreetServer{
ServerName: serverName,
}
mux := http.NewServeMux()
path, handler := greetv1connect.NewGreetServiceHandler(server)
mux.Handle(path, handler)
fmt.Printf("I'm %s\n", serverName)
http.ListenAndServe(
fmt.Sprintf("localhost:%v", myPort),
h2c.NewHandler(mux, &http2.Server{}),
)
}
func ClientRoutine(partnerPort int) {
client := greetv1connect.NewGreetServiceClient(
http.DefaultClient,
fmt.Sprintf("http://localhost:%v", partnerPort),
)
for {
var name string
fmt.Scan(&name)
res, err := client.Greet(
context.Background(),
connect.NewRequest(&greetv1.GreetRequest{
Name: name,
}),
)
if err != nil {
log.Println(err)
return
}
log.Println(res.Msg.Greeting)
}
}
func main() {
var (
me = flag.Int("MyPort", 8080, "my port number")
partner = flag.Int("PartnerPort", 8080, "port number of the communication partner")
serverName = flag.String("ServerName", "Dummy", "name to identify the server")
)
flag.Parse()
go ServerRoutine(*me, *serverName)
ClientRoutine(*partner)
}