diff --git a/CMakeLists.txt b/CMakeLists.txt
index c42349e..8990723 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,9 +5,9 @@ project(tars2node)
 set(CMAKE_VERBOSE_MAKEFILE off)
 
 # version
-set(TARS_VERSION "1.2.0")
+set(TARS_VERSION "2.4.5")
 set(PARSER_VERSION "${TARS_VERSION}")
-set(GENERATOR_VERSION "20200315")
+set(GENERATOR_VERSION "20200707")
 
 # namespace
 set(IDL_NAMESPACE Tars)
@@ -79,4 +79,4 @@ aux_source_directory(${PROJECT_SOURCE_DIR}/third_partly/tarsgrammar DIR_SRCS)
 aux_source_directory(${PROJECT_SOURCE_DIR}/third_partly/tarsparse DIR_SRCS)
 aux_source_directory(${PROJECT_SOURCE_DIR}/third_partly/util/src DIR_SRCS)
 aux_source_directory(${PROJECT_SOURCE_DIR}/src DIR_SRCS)
-add_executable(${PROJECT_NAME} ${DIR_SRCS})
\ No newline at end of file
+add_executable(${PROJECT_NAME} ${DIR_SRCS})
diff --git a/bin/linux/tars2node b/bin/linux/tars2node
index 4b84327..55d08b8 100755
Binary files a/bin/linux/tars2node and b/bin/linux/tars2node differ
diff --git a/bin/mac/tars2node b/bin/mac/tars2node
index 01f68fa..af134a3 100755
Binary files a/bin/mac/tars2node and b/bin/mac/tars2node differ
diff --git a/src/code_generator.h b/src/code_generator.h
index f0b0060..3d90486 100644
--- a/src/code_generator.h
+++ b/src/code_generator.h
@@ -60,6 +60,10 @@
 #define PROTOCOL_COMPLEX PROTOCOL_V(IDL_NAMESPACE_STR, PROTOCOL_NAME, "COMPLEX")
 #define PROTOCOL_VAR TO_LOWER_STRING(PROTOCOL_NAME)
 
+#define PROTOCOL_VJ(space, protocol, type) \
+    space + "Stream." + protocol + "." + type + "_VERSION"
+#define PROTOCOL_JSON PROTOCOL_VJ(IDL_NAMESPACE_STR, PROTOCOL_NAME, "JSON")
+
 #define DISABLE_ESLINT "/* eslint-disable */"
 #define DISABLE_TSLINT "/* tslint:disable */"
 
@@ -85,17 +89,17 @@ public:
           _bDTS(false),
           _iOptimizeLevel(O0) {}
 
-    void createFile(const string& file, const bool bEntry = true);
+    void createFile(const string &file, const bool bEntry = true);
 
-    void setRpcPath(const string& sPath) { _sRpcPath = sPath; }
+    void setRpcPath(const string & sPath) { _sRpcPath = sPath; }
 
-    void setStreamPath(const string& sPath) { _sStreamPath = sPath; }
+    void setStreamPath(const string & sPath) { _sStreamPath = sPath; }
 
     void setEnableClient(bool bEnable) { _bClient = bEnable; }
 
     void setEnableServer(bool bEnable) { _bServer = bEnable; }
 
-    void setTargetPath(const string& sPath) { _sToPath = sPath + "/"; }
+    void setTargetPath(const string & sPath) { _sToPath = sPath + "/"; }
 
     void setRecursive(bool bEnable) { _bRecursive = bEnable; }
 
@@ -131,7 +135,7 @@ private:
         string      sName;
     };
 
-    struct ImportFile
+    struct ImportFile 
     {
         string                      sFile;
         string                      sModule;
@@ -153,6 +157,8 @@ private:
 private:
     string toFunctionName(const TypeIdPtr & pPtr, const string &sAction);
 
+    string toObjectString(const TypeIdPtr &pPtr);
+
     string getDataType(const TypePtr& pPtr, const bool &bCastEnumAsAny = false);
 
     string getClassName(const TypePtr& pPtr);
@@ -281,7 +287,7 @@ private:
 
     string getRealFileInfo(const string & sPath);
 
-    string printHeaderRemark(const string &sTypeName);
+    string printHeaderRemark(const string & sTypeName);
 
 private:
     string _sRpcPath;
@@ -317,4 +323,4 @@ private:
     int    _iOptimizeLevel;
 };
 
-#endif
+#endif
\ No newline at end of file
diff --git a/src/gen_server.cpp b/src/gen_server.cpp
index 6825787..a1d296b 100644
--- a/src/gen_server.cpp
+++ b/src/gen_server.cpp
@@ -103,6 +103,30 @@ string CodeGenerator::generateAsync(const NamespacePtr &nPtr, const InterfacePtr
     str << endl;
     str << TAB << "this.doResponse(" << PROTOCOL_VAR << ".encode());" << endl;
     DEL_TAB;
+
+    //// ========= 增加对 JSON_VERSION 支持
+    str << TAB << "} else if (this.getRequestVersion() === " << PROTOCOL_JSON << ") {" << endl;
+
+    INC_TAB;
+    str << TAB << "var _data_ = {};" << endl;
+    if (oPtr->getReturnPtr()->getTypePtr())
+    {
+        str << TAB << "_data_[\"tars_ret\"] = _ret;" << endl;
+    }
+    for (size_t i = 0; i < vParamDecl.size(); i++)
+    {
+        if (!vParamDecl[i]->isOut())
+            continue;
+
+        str << TAB << "_data_[\"" << vParamDecl[i]->getTypeIdPtr()->getId() << "\"] = " << vParamDecl[i]->getTypeIdPtr()->getId()
+            << ".toObject ? " << vParamDecl[i]->getTypeIdPtr()->getId() << ".toObject() : "
+            << vParamDecl[i]->getTypeIdPtr()->getId() << ";" << endl;
+    }
+    str << endl;
+    str << TAB << " this.doResponse(new TarsStream.BinBuffer(Buffer.from(JSON.stringify(_data_))));" << endl;
+    DEL_TAB;
+    //// =========
+
     str << TAB << "} else {" << endl;
 
     INC_TAB;
@@ -178,6 +202,30 @@ string CodeGenerator::generateDispatch(const NamespacePtr &nPtr, const Interface
         dstr << ");" << endl;
     }
     DEL_TAB;
+
+    //// ========= 增加对 JSON_VERSION 支持
+    dstr << TAB << "} else if (current.getRequestVersion() === " << PROTOCOL_JSON << ") {" << endl;
+    INC_TAB;
+    dstr << TAB << "var _data_ = JSON.parse(binBuffer.toNodeBuffer());" << endl;
+
+    for (size_t i = 0; i < vParamDecl.size(); i++)
+    {
+        if (vParamDecl[i]->isOut())
+        {
+            dstr << TAB << vParamDecl[i]->getTypeIdPtr()->getId()
+                 << " = _data_." << vParamDecl[i]->getTypeIdPtr()->getId() << " || " << getDefault(vParamDecl[i]->getTypeIdPtr(), "", nPtr->getId(), true)
+                 << ";" << endl;
+        }
+        else
+        {
+            dstr << TAB << vParamDecl[i]->getTypeIdPtr()->getId()
+                 << " = _data_." << vParamDecl[i]->getTypeIdPtr()->getId()
+                 << ";" << endl;
+        }
+    }
+    DEL_TAB;
+    //// ========= 
+
     dstr << TAB << "} else {" << endl;
 
     INC_TAB;
diff --git a/src/gen_server_ts.cpp b/src/gen_server_ts.cpp
index 8709f3a..62d7bf6 100644
--- a/src/gen_server_ts.cpp
+++ b/src/gen_server_ts.cpp
@@ -1,4 +1,4 @@
-/**
+/**
  * Tencent is pleased to support the open source community by making Tars available.
  *
  * Copyright (C) 2016THL A29 Limited, a Tencent company. All rights reserved.
@@ -21,21 +21,25 @@ string CodeGenerator::generateTSServerAsync(const NamespacePtr &nPtr, const Inte
     ostringstream str;
 
     string sParams = "";
+    int rspNum = 0;
     if (oPtr->getReturnPtr()->getTypePtr())
     {
         sParams += "_ret: " + getTsType(oPtr->getReturnPtr()->getTypePtr());
 
         // push the symbol into dependent list
         getDataType(oPtr->getReturnPtr()->getTypePtr());
+        ++rspNum;
     }
 
-    vector<ParamDeclPtr> & vParamDecl = oPtr->getAllParamDeclPtr();
+    vector<ParamDeclPtr> &vParamDecl = oPtr->getAllParamDeclPtr();
     for (size_t i = 0; i < vParamDecl.size(); i++)
     {
-        if (!vParamDecl[i]->isOut()) continue;
+        if (!vParamDecl[i]->isOut())
+            continue;
 
-        sParams += (sParams.empty() ? "": ", ") + vParamDecl[i]->getTypeIdPtr()->getId();
+        sParams += (sParams.empty() ? "" : ", ") + vParamDecl[i]->getTypeIdPtr()->getId();
         sParams += ": " + getTsType(vParamDecl[i]->getTypeIdPtr()->getTypePtr());
+        ++rspNum;
     }
 
     str << TAB << "protected static __" << oPtr->getId() << "_responser(this: " << IDL_NAMESPACE_STR << "Rpc.TarsCurrent, " << sParams << ") {" << endl;
@@ -62,7 +66,8 @@ string CodeGenerator::generateTSServerAsync(const NamespacePtr &nPtr, const Inte
     }
     for (size_t i = 0; i < vParamDecl.size(); i++)
     {
-        if (!vParamDecl[i]->isOut()) continue;
+        if (!vParamDecl[i]->isOut())
+            continue;
 
         str << TAB << PROTOCOL_VAR << "." << toFunctionName(vParamDecl[i]->getTypeIdPtr(), "write") << "(\""
             << vParamDecl[i]->getTypeIdPtr()->getId() << "\", " << vParamDecl[i]->getTypeIdPtr()->getId()
@@ -71,6 +76,42 @@ string CodeGenerator::generateTSServerAsync(const NamespacePtr &nPtr, const Inte
     str << endl;
     str << TAB << "this.doResponse(" << PROTOCOL_VAR << ".encode());" << endl;
     DEL_TAB;
+
+    //// ========= 增加对 JSON_VERSION 支持
+    str << TAB << "} else if (this.getRequestVersion() === " << PROTOCOL_JSON << ") {" << endl;
+
+    INC_TAB;
+    str << TAB << "const _data_ = {" << endl;
+    INC_TAB;
+    if (oPtr->getReturnPtr()->getTypePtr())
+    {
+        str << TAB << "\"tars_ret\": _ret";
+        --rspNum;
+        if (rspNum > 0)
+        {
+            str << ", " << endl;
+        }
+    }
+    for (size_t i = 0; i < vParamDecl.size(); i++)
+    {
+        if (!vParamDecl[i]->isOut())
+            continue;
+
+        str << TAB << "\"" << vParamDecl[i]->getTypeIdPtr()->getId() << "\": " << toObjectString(vParamDecl[i]->getTypeIdPtr());
+        --rspNum;
+        if (rspNum > 0)
+        {
+            str << ", " << endl;
+        }
+    }
+    DEL_TAB;
+    str << endl;
+    str << TAB << "};" << endl;
+    str << endl;
+    str << TAB << "this.doResponse(new TarsStream.BinBuffer(Buffer.from(JSON.stringify(_data_))));" << endl;
+    DEL_TAB;
+    //// ========= 
+    
     str << TAB << "} else {" << endl;
 
     INC_TAB;
@@ -82,7 +123,8 @@ string CodeGenerator::generateTSServerAsync(const NamespacePtr &nPtr, const Inte
     }
     for (size_t i = 0; i < vParamDecl.size(); i++)
     {
-        if (!vParamDecl[i]->isOut()) continue;
+        if (!vParamDecl[i]->isOut())
+            continue;
 
         str << TAB << "os." << toFunctionName(vParamDecl[i]->getTypeIdPtr(), "write") << "("
             << (i + 1) << ", " << vParamDecl[i]->getTypeIdPtr()->getId()
@@ -148,6 +190,30 @@ string CodeGenerator::generateTSServerDispatch(const NamespacePtr &nPtr, const I
         dstr << ");" << endl;
     }
     DEL_TAB;
+
+    //// ========= 增加对 JSON_VERSION 支持
+    dstr << TAB << "} else if (current.getRequestVersion() === " << PROTOCOL_JSON << ") {" << endl;
+    INC_TAB;
+    dstr << TAB << "const _data_ = JSON.parse(binBuffer.toNodeBuffer().toString());" << endl;
+
+    for (size_t i = 0; i < vParamDecl.size(); i++)
+    {
+        if (vParamDecl[i]->isOut())
+        {
+            dstr << TAB << vParamDecl[i]->getTypeIdPtr()->getId()
+                 << " = _data_." << vParamDecl[i]->getTypeIdPtr()->getId() << " || " << getDefault(vParamDecl[i]->getTypeIdPtr(), "", nPtr->getId(), true)
+                 << ";" << endl;
+        }
+        else
+        {
+            dstr << TAB << vParamDecl[i]->getTypeIdPtr()->getId()
+                 << " = _data_." << vParamDecl[i]->getTypeIdPtr()->getId()
+                 << ";" << endl;
+        }
+    }
+    DEL_TAB;
+    //// =========
+
     dstr << TAB << "} else {" << endl;
 
     INC_TAB;
diff --git a/src/idl_util.cpp b/src/idl_util.cpp
index 4aaa033..b29905a 100644
--- a/src/idl_util.cpp
+++ b/src/idl_util.cpp
@@ -1,4 +1,4 @@
-/**
+/**
  * Tencent is pleased to support the open source community by making Tars available.
  *
  * Copyright (C) 2016THL A29 Limited, a Tencent company. All rights reserved.
@@ -68,6 +68,30 @@ string CodeGenerator::toFunctionName(const TypeIdPtr& pPtr, const string& sActio
     return "";
 }
 
+string CodeGenerator::toObjectString(const TypeIdPtr &pPtr)
+{
+    string nameId = pPtr->getId();
+    VectorPtr vPtr = VectorPtr::dynamicCast(pPtr->getTypePtr());
+    if (vPtr)
+    {
+        return nameId + ".toObject()";
+    }
+
+    StructPtr sPtr = StructPtr::dynamicCast(pPtr->getTypePtr());
+    if (sPtr)
+    {
+        return nameId + ".toObject()";
+    }
+
+    MapPtr mPtr = MapPtr::dynamicCast(pPtr->getTypePtr());
+    if (mPtr)
+    {
+        return nameId + ".toObject()";
+    }
+
+    return nameId;
+}
+
 string CodeGenerator::representArgument(const TypePtr& pPtr) const
 {
     BuiltinPtr bPtr = BuiltinPtr::dynamicCast(pPtr);
@@ -452,4 +476,4 @@ string CodeGenerator::getDefault(const TypeIdPtr & pPtr, const string &sDefault,
     }
 
     return sDefault;
-}
+}
\ No newline at end of file