HttpApiHandlerContainer 추가

server.go

@@ -20,6 +20,7 @@ import (
 	"sync/atomic"
 	"syscall"
 	"time"
+	"unsafe"
 
 	"repositories.action2quare.com/ayo/gocommon/flagx"
 	"repositories.action2quare.com/ayo/gocommon/logger"
@@ -606,3 +607,68 @@ func MakeHttpRequestForLogging(r *http.Request) *http.Request {
 	r.Body = ib
 	return r
 }
+
+type apiFuncType func(http.ResponseWriter, *http.Request)
+type HttpApiReceiver struct {
+	methods map[string]apiFuncType
+}
+
+func MakeHttpApiReceiver[T any](receiver *T) HttpApiReceiver {
+	methods := make(map[string]apiFuncType)
+
+	tp := reflect.TypeOf(receiver)
+	name := tp.Elem().Name()
+	for i := 0; i < tp.NumMethod(); i++ {
+		method := tp.Method(i)
+		if method.Type.NumIn() != 3 {
+			continue
+		}
+
+		if method.Type.In(0) != tp {
+			continue
+		}
+
+		var w http.ResponseWriter
+		if method.Type.In(1) != reflect.TypeOf(w) {
+			continue
+		}
+
+		var r http.Request
+		if method.Type.In(2) != reflect.TypeOf(&r) {
+			continue
+		}
+
+		if method.Name == "ServeHTTP" {
+			continue
+		}
+
+		funcptr := method.Func.Pointer()
+		p1 := unsafe.Pointer(&funcptr)
+		p2 := unsafe.Pointer(&p1)
+		testfunc := (*func(*T, http.ResponseWriter, *http.Request))(p2)
+		methods[name+"."+method.Name] = func(w http.ResponseWriter, r *http.Request) {
+			(*testfunc)(receiver, w, r)
+		}
+	}
+
+	return HttpApiReceiver{
+		methods: methods,
+	}
+}
+
+type HttpApiHandlerContainer struct {
+	methods map[string]apiFuncType
+}
+
+func (hc *HttpApiHandlerContainer) RegistReceiver(receiver HttpApiReceiver) {
+	for k, v := range receiver.methods {
+		logger.Println("http api registered :", k)
+		hc.methods[k] = v
+	}
+}
+
+func (hc *HttpApiHandlerContainer) HandlerFunc(serveMux *http.ServeMux, prefix string) {
+	for k, v := range hc.methods {
+		serveMux.HandleFunc(MakeHttpHandlerPattern(prefix, k), v)
+	}
+}