diff --git a/agent.go b/agent.go
index 896bad1..40a4138 100644
--- a/agent.go
+++ b/agent.go
@@ -3,7 +3,6 @@ package main
 import (
 	"fmt"
 	"math/rand"
-	"net/http"
 	"os"
 	"os/signal"
 	"syscall"
@@ -85,12 +84,8 @@ func serve(c *cli.Context) error {
 		errChan <- nodeManager.Run(ctx)
 	}()
 
-	additionalHandler := map[string]map[string]func(http.ResponseWriter, *http.Request){
-		"GET": {
-			"/log/": workloadManager.LogHandler(),
-		},
-	}
-	go api.Serve(config.API.Addr, additionalHandler)
+	apiHandler := api.NewHandler(config, workloadManager)
+	go apiHandler.Serve()
 
 	select {
 	case err := <-errChan:
diff --git a/api/http.go b/api/http.go
index 63633af..56c2f4f 100644
--- a/api/http.go
+++ b/api/http.go
@@ -7,6 +7,8 @@ import (
 	// enable api
 	_ "net/http/pprof" // nolint
 
+	"github.com/projecteru2/agent/manager/workload"
+	"github.com/projecteru2/agent/types"
 	"github.com/projecteru2/agent/version"
 
 	"github.com/bmizerany/pat"
@@ -19,6 +21,8 @@ type JSON map[string]interface{}
 
 // Handler define handler
 type Handler struct {
+	config          *types.Config
+	workloadManager *workload.Manager
 }
 
 // URL /version/
@@ -39,20 +43,47 @@ func (h *Handler) profile(w http.ResponseWriter, _ *http.Request) {
 	_ = json.NewEncoder(w).Encode(r)
 }
 
+// URL /log/
+func (h *Handler) log(w http.ResponseWriter, req *http.Request) {
+	app := req.URL.Query().Get("app")
+	if app == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+	// fuck httpie
+	w.WriteHeader(http.StatusOK)
+	if hijack, ok := w.(http.Hijacker); ok {
+		conn, buf, err := hijack.Hijack()
+		if err != nil {
+			log.Errorf("[apiLog] connect failed %v", err)
+			return
+		}
+		defer conn.Close()
+		h.workloadManager.Subscribe(app, buf)
+	}
+}
+
+func NewHandler(config *types.Config, workloadManager *workload.Manager) *Handler {
+	return &Handler{
+		config:          config,
+		workloadManager: workloadManager,
+	}
+}
+
 // Serve start a api service
 // blocks by http.ListenAndServe
 // run this in a separated goroutine
-func Serve(addr string, additionalHandlers map[string]map[string]func(http.ResponseWriter, *http.Request)) {
-	if addr == "" {
+func (h *Handler) Serve() {
+	if h.config.API.Addr == "" {
 		return
 	}
 
-	h := &Handler{}
 	restfulAPIServer := pat.New()
 	handlers := map[string]map[string]func(http.ResponseWriter, *http.Request){
 		"GET": {
 			"/profile/": h.profile,
 			"/version/": h.version,
+			"/log/":     h.log,
 		},
 	}
 
@@ -62,17 +93,11 @@ func Serve(addr string, additionalHandlers map[string]map[string]func(http.Respo
 		}
 	}
 
-	for method, routes := range additionalHandlers {
-		for route, handler := range routes {
-			restfulAPIServer.Add(method, route, http.HandlerFunc(handler))
-		}
-	}
-
 	http.Handle("/", restfulAPIServer)
 	http.Handle("/metrics", promhttp.Handler())
-	log.Infof("[apiServe] http api started %s", addr)
+	log.Infof("[apiServe] http api started %s", h.config.API.Addr)
 
-	err := http.ListenAndServe(addr, nil)
+	err := http.ListenAndServe(h.config.API.Addr, nil)
 	if err != nil {
 		log.Panicf("http api failed %s", err)
 	}
diff --git a/manager/workload/log.go b/manager/workload/log.go
index af0642e..24906f9 100644
--- a/manager/workload/log.go
+++ b/manager/workload/log.go
@@ -5,7 +5,6 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"net/http"
 
 	"github.com/projecteru2/agent/types"
 	coreutils "github.com/projecteru2/core/utils"
@@ -83,22 +82,3 @@ func (l *logBroadcaster) run(ctx context.Context) {
 		}
 	}
 }
-
-func (l *logBroadcaster) handler(w http.ResponseWriter, req *http.Request) {
-	app := req.URL.Query().Get("app")
-	if app == "" {
-		w.WriteHeader(http.StatusBadRequest)
-		return
-	}
-	// fuck httpie
-	w.WriteHeader(http.StatusOK)
-	if hijack, ok := w.(http.Hijacker); ok {
-		conn, buf, err := hijack.Hijack()
-		if err != nil {
-			logrus.Errorf("[apiLog] connect failed %v", err)
-			return
-		}
-		defer conn.Close()
-		l.subscribe(app, buf)
-	}
-}
diff --git a/manager/workload/log_test.go b/manager/workload/log_test.go
index 49b99b0..5a77f6e 100644
--- a/manager/workload/log_test.go
+++ b/manager/workload/log_test.go
@@ -10,15 +10,35 @@ import (
 	"github.com/projecteru2/agent/types"
 
 	"github.com/bmizerany/pat"
+	"github.com/sirupsen/logrus"
 	"github.com/stretchr/testify/assert"
 )
 
 func TestLogBroadcaster(t *testing.T) {
 	l := newLogBroadcaster()
 
+	handler := func(w http.ResponseWriter, req *http.Request) {
+		app := req.URL.Query().Get("app")
+		if app == "" {
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		// fuck httpie
+		w.WriteHeader(http.StatusOK)
+		if hijack, ok := w.(http.Hijacker); ok {
+			conn, buf, err := hijack.Hijack()
+			if err != nil {
+				logrus.Errorf("[apiLog] connect failed %v", err)
+				return
+			}
+			defer conn.Close()
+			l.subscribe(app, buf)
+		}
+	}
+
 	go func() {
 		restfulAPIServer := pat.New()
-		restfulAPIServer.Add("GET", "/log/", http.HandlerFunc(l.handler))
+		restfulAPIServer.Add("GET", "/log/", http.HandlerFunc(handler))
 		http.Handle("/", restfulAPIServer)
 		http.ListenAndServe(":12310", nil)
 	}()
@@ -30,7 +50,6 @@ func TestLogBroadcaster(t *testing.T) {
 			Name:       "nerv",
 			Type:       "stdout",
 			EntryPoint: "eva0",
-			Ident:      "",
 			Data:       "data0",
 		}
 		l.logC <- &types.Log{
@@ -38,7 +57,6 @@ func TestLogBroadcaster(t *testing.T) {
 			Name:       "nerv",
 			Type:       "stdout",
 			EntryPoint: "eva0",
-			Ident:      "",
 			Data:       "data1",
 		}
 	}()
diff --git a/manager/workload/manager.go b/manager/workload/manager.go
index eb8f074..9a98327 100644
--- a/manager/workload/manager.go
+++ b/manager/workload/manager.go
@@ -1,8 +1,8 @@
 package workload
 
 import (
+	"bufio"
 	"context"
-	"net/http"
 
 	"github.com/projecteru2/agent/common"
 	"github.com/projecteru2/agent/runtime"
@@ -118,7 +118,6 @@ func (m *Manager) Run(ctx context.Context) error {
 	}
 }
 
-// LogHandler returns the http handler for /log/
-func (m *Manager) LogHandler() func(w http.ResponseWriter, req *http.Request) {
-	return m.logBroadcaster.handler
+func (m *Manager) Subscribe(app string, buf *bufio.ReadWriter) {
+	m.logBroadcaster.subscribe(app, buf)
 }