diff --git a/f8/jsonhttprequest.cc b/f8/jsonhttprequest.cc
new file mode 100644
index 0000000..1296a50
--- /dev/null
+++ b/f8/jsonhttprequest.cc
@@ -0,0 +1,31 @@
+#include <string.h>
+
+#include <a8/a8.h>
+#include <a8/mutable_xobject.h>
+
+#include <f8/f8.h>
+#include <f8/jsonhttprequest.h>
+
+namespace f8
+{
+    JsonHttpRequest::JsonHttpRequest()
+    {
+        resp_xobj = a8::MutableXObject::NewObject();
+    }
+
+    JsonHttpRequest::~JsonHttpRequest()
+    {
+        delete resp_xobj;
+        if (context && free_context)  {
+            free_context(context);
+        }
+    }
+
+    std::string JsonHttpRequest::Response()
+    {
+        std::string response;
+        resp_xobj->ToJsonStr(response);
+        return a8::HttpResponse(response);
+    }
+
+}
diff --git a/f8/jsonhttprequest.h b/f8/jsonhttprequest.h
new file mode 100644
index 0000000..3e4c017
--- /dev/null
+++ b/f8/jsonhttprequest.h
@@ -0,0 +1,31 @@
+#pragma once
+
+namespace a8
+{
+    class MutableXObject;
+}
+
+namespace f8
+{
+
+    struct JsonHttpRequest
+    {
+        bool pending = false;
+        unsigned long saddr = 0;
+        int socket_handle = 0;
+        time_t create_time = 0;
+        time_t handle_time = 0;
+        std::string query_str;
+        a8::XObject request;
+        a8::MutableXObject* resp_xobj = nullptr;
+
+        int async_pending_count = 0;
+        void* context = nullptr;
+        void (*free_context)(void*) = nullptr;
+
+        JsonHttpRequest();
+        ~JsonHttpRequest();
+        std::string Response();
+    };
+
+}
diff --git a/f8/types.cc b/f8/types.cc
index e32f537..0b77c10 100644
--- a/f8/types.cc
+++ b/f8/types.cc
@@ -7,24 +7,5 @@
 
 namespace f8
 {
-    JsonHttpRequest::JsonHttpRequest()
-    {
-        resp_xobj = a8::MutableXObject::NewObject();
-    }
-
-    JsonHttpRequest::~JsonHttpRequest()
-    {
-        delete resp_xobj;
-        if (context && free_context)  {
-            free_context(context);
-        }
-    }
-
-    std::string JsonHttpRequest::Response()
-    {
-        std::string response;
-        resp_xobj->ToJsonStr(response);
-        return a8::HttpResponse(response);
-    }
 
 }
diff --git a/f8/types.h b/f8/types.h
index f601286..68eafdb 100644
--- a/f8/types.h
+++ b/f8/types.h
@@ -1,31 +1,10 @@
 #pragma once
 
-namespace a8
-{
-    class MutableXObject;
-}
-
 namespace f8
 {
-    struct JsonHttpRequest
-    {
-        bool pending = false;
-        unsigned long saddr = 0;
-        int socket_handle = 0;
-        time_t create_time = 0;
-        time_t handle_time = 0;
-        std::string query_str;
-        a8::XObject request;
-        a8::MutableXObject* resp_xobj = nullptr;
 
-        int async_pending_count = 0;
-        void* context = nullptr;
-        void (*free_context)(void*) = nullptr;
-
-        JsonHttpRequest();
-        ~JsonHttpRequest();
-        std::string Response();
-    };
+    struct MsgHdr;
+    struct JsonHttpRequest;
 
     enum SysInnerMesssage_e
     {
@@ -35,6 +14,4 @@ namespace f8
         IM_SysEnd = 99,
     };
 
-    struct MsgHdr;
-
 }