diff --git a/jus/AbstractFunction.cpp b/jus/AbstractFunction.cpp
new file mode 100644
index 0000000..6df9c7e
--- /dev/null
+++ b/jus/AbstractFunction.cpp
@@ -0,0 +1,145 @@
+/** @file
+ * @author Edouard DUPIN
+ * @copyright 2016, Edouard DUPIN, all right reserved
+ * @license APACHE v2.0 (see license file)
+ */
+#include <jus/AbstractFunction.h>
+#include <jus/debug.h>
+
+template<> bool convertJsonTo<bool>(const ejson::Value& _value) {
+	return _value.toBoolean().get();
+}
+template<> float convertJsonTo<float>(const ejson::Value& _value) {
+	return _value.toNumber().get();
+}
+template<> double convertJsonTo<double>(const ejson::Value& _value) {
+	return _value.toNumber().get();
+}
+template<> int64_t convertJsonTo<int64_t>(const ejson::Value& _value) {
+	return int64_t(_value.toNumber().get());
+}
+template<> int32_t convertJsonTo<int32_t>(const ejson::Value& _value) {
+	//_value.display();
+	return int32_t(_value.toNumber().get());
+}
+template<> int16_t convertJsonTo<int16_t>(const ejson::Value& _value) {
+	return int16_t(_value.toNumber().get());
+}
+template<> int8_t convertJsonTo<int8_t>(const ejson::Value& _value) {
+	return int8_t(_value.toNumber().get());
+}
+template<> uint64_t convertJsonTo<uint64_t>(const ejson::Value& _value) {
+	return uint64_t(_value.toNumber().get());
+}
+template<> uint32_t convertJsonTo<uint32_t>(const ejson::Value& _value) {
+	return uint32_t(_value.toNumber().get());
+}
+template<> uint16_t convertJsonTo<uint16_t>(const ejson::Value& _value) {
+	return uint16_t(_value.toNumber().get());
+}
+template<> uint8_t convertJsonTo<uint8_t>(const ejson::Value& _value) {
+	return uint8_t(_value.toNumber().get());
+}
+template<> std::string convertJsonTo<std::string>(const ejson::Value& _value) {
+	//_value.display();
+	return _value.toString().get();
+}
+
+template<> ejson::Value convertToJson<bool>(const bool& _value) {
+	return ejson::Boolean(_value);
+}
+template<> ejson::Value convertToJson<float>(const float& _value) {
+	return ejson::Number(_value);
+}
+template<> ejson::Value convertToJson<double>(const double& _value) {
+	return ejson::Number(_value);
+}
+template<> ejson::Value convertToJson<int64_t>(const int64_t& _value) {
+	return ejson::Number(_value);
+}
+template<> ejson::Value convertToJson<int32_t>(const int32_t& _value) {
+	return ejson::Number(_value);
+}
+template<> ejson::Value convertToJson<int16_t>(const int16_t& _value) {
+	return ejson::Number(_value);
+}
+template<> ejson::Value convertToJson<int8_t>(const int8_t& _value) {
+	return ejson::Number(_value);
+}
+template<> ejson::Value convertToJson<uint64_t>(const uint64_t& _value) {
+	return ejson::Number(_value);
+}
+template<> ejson::Value convertToJson<uint32_t>(const uint32_t& _value) {
+	return ejson::Number(_value);
+}
+template<> ejson::Value convertToJson<uint16_t>(const uint16_t& _value) {
+	return ejson::Number(_value);
+}
+template<> ejson::Value convertToJson<uint8_t>(const uint8_t& _value) {
+	return ejson::Number(_value);
+}
+template<> ejson::Value convertToJson<std::string>(const std::string& _value) {
+	return ejson::String(_value);
+}
+
+template<> bool convertStringTo<bool>(const std::string& _value) {
+	return etk::string_to_bool(_value);
+}
+template<> float convertStringTo<float>(const std::string& _value) {
+	return etk::string_to_float(_value);
+}
+template<> double convertStringTo<double>(const std::string& _value) {
+	return etk::string_to_double(_value);
+}
+template<> int64_t convertStringTo<int64_t>(const std::string& _value) {
+	return etk::string_to_int64_t(_value);
+}
+template<> int32_t convertStringTo<int32_t>(const std::string& _value) {
+	return etk::string_to_int32_t(_value);
+}
+template<> int16_t convertStringTo<int16_t>(const std::string& _value) {
+	return etk::string_to_int16_t(_value);
+}
+template<> int8_t convertStringTo<int8_t>(const std::string& _value) {
+	return etk::string_to_int8_t(_value);
+}
+template<> uint64_t convertStringTo<uint64_t>(const std::string& _value) {
+	return etk::string_to_uint64_t(_value);
+}
+template<> uint32_t convertStringTo<uint32_t>(const std::string& _value) {
+	return etk::string_to_uint32_t(_value);
+}
+template<> uint16_t convertStringTo<uint16_t>(const std::string& _value) {
+	return etk::string_to_uint16_t(_value);
+}
+template<> uint8_t convertStringTo<uint8_t>(const std::string& _value) {
+	return etk::string_to_uint8_t(_value);
+}
+template<> std::string convertStringTo<std::string>(const std::string& _value) {
+	return _value;
+}
+
+bool AbstractFunction::checkCompatibility(const ParamType& _type, const ejson::Value& _params) {
+	if (createType<bool>() == _type) {
+		return _params.isBoolean();
+	}
+	if (    createType<int64_t>() == _type
+	     || createType<int32_t>() == _type
+	     || createType<int16_t>() == _type
+	     || createType<int8_t>() == _type
+	     || createType<uint64_t>() == _type
+	     || createType<uint32_t>() == _type
+	     || createType<uint16_t>() == _type
+	     || createType<uint8_t>() == _type
+	     || createType<float>() == _type
+	     || createType<double>() == _type) {
+		return _params.isNumber();
+	}
+	if (createType<std::string>() == _type) {
+		return _params.isString();
+	}
+	return false;
+}
+bool AbstractFunction::checkCompatibility(const ParamType& _type, const std::string& _params) {
+	return false;
+}
diff --git a/jus/AbstractFunction.h b/jus/AbstractFunction.h
new file mode 100644
index 0000000..c40723d
--- /dev/null
+++ b/jus/AbstractFunction.h
@@ -0,0 +1,56 @@
+/** @file
+ * @author Edouard DUPIN
+ * @copyright 2016, Edouard DUPIN, all right reserved
+ * @license APACHE v2.0 (see license file)
+ */
+#pragma once
+
+#include <jus/TcpString.h>
+#include <eproperty/Value.h>
+#include <ejson/ejson.h>
+#include <jus/debug.h>
+#include <jus/ParamType.h>
+
+class AbstractFunction {
+	protected:
+		const std::string m_name;
+	public:
+		const std::string& getName() const {
+			return m_name;
+		}
+	protected:
+		const std::string m_description;
+	public:
+		const std::string& getDescription() const {
+			return m_description;
+		}
+	protected:
+		AbstractFunction(const std::string& _name,
+		        const std::string& _desc):
+		  m_name(_name),
+		  m_description(_desc) {
+			
+		}
+	public:
+		virtual ~AbstractFunction() {};
+		bool checkCompatibility(const ParamType& _type, const ejson::Value& _params);
+		bool checkCompatibility(const ParamType& _type, const std::string& _params);
+	public:
+		virtual std::string getPrototype() const = 0;
+		virtual ejson::Value executeJson(const ejson::Array& _params, void* _class=nullptr) = 0;
+		virtual std::string executeString(const std::vector<std::string>& _params, void* _class=nullptr) = 0;
+};
+
+template<class JUS_TYPE>
+JUS_TYPE convertStringTo(const std::string& _value);
+
+template<class JUS_TYPE>
+JUS_TYPE convertJsonTo(const ejson::Value& _value);
+
+template<class JUS_TYPE>
+ejson::Value convertToJson(const JUS_TYPE& _value);
+/*
+template <class, class...>
+class TypeList;
+*/
+
diff --git a/jus/AbstractFunctionTypeClass.cpp b/jus/AbstractFunctionTypeClass.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/jus/AbstractFunctionTypeClass.h b/jus/AbstractFunctionTypeClass.h
new file mode 100644
index 0000000..0c7850f
--- /dev/null
+++ b/jus/AbstractFunctionTypeClass.h
@@ -0,0 +1,175 @@
+/** @file
+ * @author Edouard DUPIN
+ * @copyright 2016, Edouard DUPIN, all right reserved
+ * @license APACHE v2.0 (see license file)
+ */
+#pragma once
+
+#include <jus/TcpString.h>
+#include <eproperty/Value.h>
+#include <ejson/ejson.h>
+#include <jus/debug.h>
+#include <jus/AbstractFunction.h>
+
+template <class JUS_CLASS_TYPE, class JUS_RETURN, class... JUS_TYPES>
+ejson::Value executeClassCallJson(JUS_CLASS_TYPE* _pointer, JUS_RETURN (JUS_CLASS_TYPE::*_func)(JUS_TYPES...), const ejson::Array& _params) {
+	#if defined(__clang__)
+		// clang generate a basic warning:
+		//      warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
+		int32_t idParam = 0;
+		return convertToJson((*_pointer.*_func)((convertJsonTo<JUS_TYPES>(_params[idParam++]))...));
+	#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
+		int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
+		return convertToJson((*_pointer.*_func)(convertJsonTo<JUS_TYPES>(_params[idParam--])...));
+	#else
+		#error Must be implemented ...
+	#endif
+	return ejson::Null();
+}
+
+template <class JUS_CLASS_TYPE, class... JUS_TYPES>
+ejson::Value executeClassCallJson(JUS_CLASS_TYPE* _pointer, void (JUS_CLASS_TYPE::*_func)(JUS_TYPES...), const ejson::Array& _params) {
+	ejson::Object out;
+	#if defined(__clang__)
+		// clang generate a basic warning:
+		//      warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
+		int32_t idParam = 0;
+		(*_pointer.*_func)((convertJsonTo<JUS_TYPES>(_params[idParam++]))...);
+	#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
+		int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
+		(*_pointer.*_func)(convertJsonTo<JUS_TYPES>(_params[idParam--])...);
+	#else
+		#error Must be implemented ...
+	#endif
+	return ejson::Null();
+}
+
+template <class JUS_CLASS_TYPE, class JUS_RETURN, class... JUS_TYPES>
+std::string executeClassCallString(JUS_CLASS_TYPE* _pointer, JUS_RETURN (JUS_CLASS_TYPE::*_func)(JUS_TYPES...), const std::vector<std::string>& _params) {
+	#if defined(__clang__)
+		// clang generate a basic warning:
+		//      warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
+		int32_t idParam = 0;
+		return etk::to_string((*_pointer.*_func)((convertStringTo<JUS_TYPES>(_params[idParam++]))...));
+	#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
+		int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
+		return etk::to_string((*_pointer.*_func)(convertStringTo<JUS_TYPES>(_params[idParam--])...));
+	#else
+		#error Must be implemented ...
+	#endif
+	return "";
+}
+template <class JUS_CLASS_TYPE, class... JUS_TYPES>
+std::string executeClassCallString(JUS_CLASS_TYPE* _pointer, void (JUS_CLASS_TYPE::*_func)(JUS_TYPES...), const std::vector<std::string>& _params) {
+	ejson::Object out;
+	#if defined(__clang__)
+		// clang generate a basic warning:
+		//      warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
+		int32_t idParam = 0;
+		(*_pointer.*_func)((convertStringTo<JUS_TYPES>(_params[idParam++]))...);
+	#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
+		int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
+		(*_pointer.*_func)(convertStringTo<JUS_TYPES>(_params[idParam--])...);
+	#else
+		#error Must be implemented ...
+	#endif
+	return "";
+}
+
+template <class JUS_RETURN, class JUS_CLASS_TYPE, class... JUS_TYPES>
+class AbstractFunctionTypeClass: public AbstractFunction {
+	protected:
+		static const ParamType m_returnType;
+		static const ParamType m_paramType[sizeof...(JUS_TYPES)];
+	public:
+		using functionType = JUS_RETURN (JUS_CLASS_TYPE::*)(JUS_TYPES...);
+		functionType m_function;
+		AbstractFunctionTypeClass(const std::string& _name, const std::string& _desc, functionType _fptr):
+		  AbstractFunction(_name, _desc),
+		  m_function(_fptr) {
+		}
+		std::string getPrototype() const override {
+			std::string ret;
+			ret += m_returnType.getName();
+			ret += " ";
+			ret += m_name;
+			ret += "(";
+			for (size_t iii=0; iii<sizeof...(JUS_TYPES); ++iii) {
+				if (iii != 0) {
+					ret += ", ";
+				}
+				ret += m_paramType[iii].getName();
+			}
+			ret += ");";
+			return ret;
+		}
+		ejson::Value executeJson(const ejson::Array& _params, void* _class) override {
+			JUS_CLASS_TYPE* tmpClass = (JUS_CLASS_TYPE*)_class;
+			ejson::Object out;
+			// check parameter number
+			if (_params.size() != sizeof...(JUS_TYPES)) {
+				JUS_ERROR("Wrong number of Parameters ...");
+				out.add("error", ejson::String("WRONG-PARAMETER-NUMBER"));
+				std::string help = "request ";
+				help += etk::to_string(_params.size());
+				help += " parameters and need ";
+				help += etk::to_string(sizeof...(JUS_TYPES));
+				help += " parameters. prototype function:";
+				help += getPrototype();
+				out.add("error-help", ejson::String(help));
+				return out;
+			}
+			// check parameter compatibility
+			for (size_t iii=0; iii<sizeof...(JUS_TYPES); ++iii) {
+				if (checkCompatibility(m_paramType[iii], _params[iii]) == false) {
+					out.add("error", ejson::String("WRONG-PARAMETER-TYPE"));
+					out.add("error-help", ejson::String("Parameter id " + etk::to_string(iii) + " not compatible with type: '" + m_paramType[iii].getName() + "'"));
+					return out;
+				}
+			}
+			// execute cmd:
+			ejson::Value retVal = executeClassCallJson(tmpClass, m_function, _params);
+			out.add("return", retVal);
+			return out;
+		}
+		std::string executeString(const std::vector<std::string>& _params, void* _class) override {
+			JUS_CLASS_TYPE* tmpClass = (JUS_CLASS_TYPE*)_class;
+			std::string out;
+			// check parameter number
+			if (_params.size() != sizeof...(JUS_TYPES)) {
+				JUS_ERROR("Wrong number of Parameters ...");
+				out += "error:WRONG-PARAMETER-NUMBER;";
+				out += "error-help:request ";
+				out += etk::to_string(_params.size());
+				out += " parameters and need ";
+				out += etk::to_string(sizeof...(JUS_TYPES));
+				out += " parameters. prototype function:";
+				out += getPrototype();
+				return out;
+			}
+			// check parameter compatibility
+			for (size_t iii=0; iii<sizeof...(JUS_TYPES); ++iii) {
+				if (checkCompatibility(m_paramType[iii], _params[iii]) == false) {
+					out += "error:WRONG-PARAMETER-TYPE;";
+					out += "error-help:Parameter id " + etk::to_string(iii) + " not compatible with type: '" + m_paramType[iii].getName() + "'";
+					return out;
+				}
+			}
+			// execute cmd:
+			out = executeClassCallString(tmpClass, m_function, _params);
+			return out;
+		}
+};
+
+template <class JUS_RETURN, class JUS_CLASS_TYPE, class... JUS_TYPES>
+const ParamType AbstractFunctionTypeClass<JUS_RETURN, JUS_CLASS_TYPE, JUS_TYPES...>::m_returnType = createType<JUS_RETURN>();
+
+template <class JUS_RETURN, class JUS_CLASS_TYPE, class... JUS_TYPES>
+const ParamType AbstractFunctionTypeClass<JUS_RETURN, JUS_CLASS_TYPE, JUS_TYPES...>::m_paramType[sizeof...(JUS_TYPES)] = {createType<JUS_TYPES>()...};
+
+
+template <typename JUS_RETURN, class JUS_CLASS_TYPE, typename... JUS_TYPES>
+AbstractFunction* createAbstractFunctionClass(const std::string& _name, const std::string& _desc, JUS_RETURN (JUS_CLASS_TYPE::*_fffp)(JUS_TYPES...)) {
+	return new AbstractFunctionTypeClass<JUS_RETURN, JUS_CLASS_TYPE, JUS_TYPES...>(_name, _desc, _fffp);
+}
+
diff --git a/jus/AbstractFunctionTypeDirect.cpp b/jus/AbstractFunctionTypeDirect.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/jus/AbstractFunctionTypeDirect.h b/jus/AbstractFunctionTypeDirect.h
new file mode 100644
index 0000000..fc18f82
--- /dev/null
+++ b/jus/AbstractFunctionTypeDirect.h
@@ -0,0 +1,173 @@
+/** @file
+ * @author Edouard DUPIN
+ * @copyright 2016, Edouard DUPIN, all right reserved
+ * @license APACHE v2.0 (see license file)
+ */
+#pragma once
+
+#include <jus/TcpString.h>
+#include <eproperty/Value.h>
+#include <ejson/ejson.h>
+#include <jus/debug.h>
+#include <jus/AbstractFunction.h>
+
+template <class JUS_RETURN, class... JUS_TYPES>
+ejson::Value executeCallJson(JUS_RETURN (*_func)(JUS_TYPES...), const ejson::Array& _params) {
+	#if defined(__clang__)
+		// clang generate a basic warning:
+		//      warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
+		int32_t idParam = 0;
+		return convertToJson(_func((convertJsonTo<JUS_TYPES>(_params[idParam++]))...));
+	#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
+		int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
+		return convertToJson(_func(convertJsonTo<JUS_TYPES>(_params[idParam--])...));
+	#else
+		#error Must be implemented ...
+	#endif
+	return ejson::Null();
+}
+
+template <class... JUS_TYPES>
+ejson::Value executeCallJson(void (*_func)(JUS_TYPES...), const ejson::Array& _params) {
+	ejson::Object out;
+	#if defined(__clang__)
+		// clang generate a basic warning:
+		//      warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
+		int32_t idParam = 0;
+		_func((convertJsonTo<JUS_TYPES>(_params[idParam++]))...);
+	#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
+		int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
+		_func(convertJsonTo<JUS_TYPES>(_params[idParam--])...);
+	#else
+		#error Must be implemented ...
+	#endif
+	return ejson::Null();
+}
+
+template <class JUS_RETURN, class... JUS_TYPES>
+std::string executeCallString(JUS_RETURN (*_func)(JUS_TYPES...), const std::vector<std::string>& _params) {
+	#if defined(__clang__)
+		// clang generate a basic warning:
+		//      warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
+		int32_t idParam = 0;
+		return etk::to_string(_func((convertStringTo<JUS_TYPES>(_params[idParam++]))...));
+	#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
+		int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
+		return etk::to_string(_func(convertStringTo<JUS_TYPES>(_params[idParam--])...));
+	#else
+		#error Must be implemented ...
+	#endif
+	return "";
+}
+template <class... JUS_TYPES>
+std::string executeCallString(void (*_func)(JUS_TYPES...), const std::vector<std::string>& _params) {
+	ejson::Object out;
+	#if defined(__clang__)
+		// clang generate a basic warning:
+		//      warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
+		int32_t idParam = 0;
+		_func((convertStringTo<JUS_TYPES>(_params[idParam++]))...);
+	#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
+		int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
+		_func(convertStringTo<JUS_TYPES>(_params[idParam--])...);
+	#else
+		#error Must be implemented ...
+	#endif
+	return "";
+}
+
+template <class JUS_RETURN, class... JUS_TYPES>
+class AbstractFunctionTypeDirect: public AbstractFunction {
+	protected:
+		static const ParamType m_returnType;
+		static const ParamType m_paramType[sizeof...(JUS_TYPES)];
+	public:
+		using functionType = JUS_RETURN (*)(JUS_TYPES...);
+		functionType m_function;
+		AbstractFunctionTypeDirect(const std::string& _name, const std::string& _desc, functionType _fptr):
+		  AbstractFunction(_name, _desc),
+		  m_function(_fptr) {
+		}
+		std::string getPrototype() const override {
+			std::string ret;
+			ret += m_returnType.getName();
+			ret += " ";
+			ret += m_name;
+			ret += "(";
+			for (size_t iii=0; iii<sizeof...(JUS_TYPES); ++iii) {
+				if (iii != 0) {
+					ret += ", ";
+				}
+				ret += m_paramType[iii].getName();
+			}
+			ret += ");";
+			return ret;
+		}
+		ejson::Value executeJson(const ejson::Array& _params, void* _class) override {
+			ejson::Object out;
+			// check parameter number
+			if (_params.size() != sizeof...(JUS_TYPES)) {
+				JUS_ERROR("Wrong number of Parameters ...");
+				out.add("error", ejson::String("WRONG-PARAMETER-NUMBER"));
+				std::string help = "request ";
+				help += etk::to_string(_params.size());
+				help += " parameters and need ";
+				help += etk::to_string(sizeof...(JUS_TYPES));
+				help += " parameters. prototype function:";
+				help += getPrototype();
+				out.add("error-help", ejson::String(help));
+				return out;
+			}
+			// check parameter compatibility
+			for (size_t iii=0; iii<sizeof...(JUS_TYPES); ++iii) {
+				if (checkCompatibility(m_paramType[iii], _params[iii]) == false) {
+					out.add("error", ejson::String("WRONG-PARAMETER-TYPE"));
+					out.add("error-help", ejson::String("Parameter id " + etk::to_string(iii) + " not compatible with type: '" + m_paramType[iii].getName() + "'"));
+					return out;
+				}
+			}
+			// execute cmd:
+			ejson::Value retVal = executeCallJson(m_function, _params);
+			out.add("return", retVal);
+			return out;
+		}
+		std::string executeString(const std::vector<std::string>& _params, void* _class) override {
+			std::string out;
+			// check parameter number
+			if (_params.size() != sizeof...(JUS_TYPES)) {
+				JUS_ERROR("Wrong number of Parameters ...");
+				out += "error:WRONG-PARAMETER-NUMBER;";
+				out += "error-help:request ";
+				out += etk::to_string(_params.size());
+				out += " parameters and need ";
+				out += etk::to_string(sizeof...(JUS_TYPES));
+				out += " parameters. prototype function:";
+				out += getPrototype();
+				return out;
+			}
+			// check parameter compatibility
+			for (size_t iii=0; iii<sizeof...(JUS_TYPES); ++iii) {
+				if (checkCompatibility(m_paramType[iii], _params[iii]) == false) {
+					out += "error:WRONG-PARAMETER-TYPE;";
+					out += "error-help:Parameter id " + etk::to_string(iii) + " not compatible with type: '" + m_paramType[iii].getName() + "'";
+					return out;
+				}
+			}
+			// execute cmd:
+			out = executeCallString(m_function, _params);
+			return out;
+		}
+};
+
+template <class JUS_RETURN, class... JUS_TYPES>
+const ParamType AbstractFunctionTypeDirect<JUS_RETURN, JUS_TYPES...>::m_returnType = createType<JUS_RETURN>();
+
+template <class JUS_RETURN, class... JUS_TYPES>
+const ParamType AbstractFunctionTypeDirect<JUS_RETURN, JUS_TYPES...>::m_paramType[sizeof...(JUS_TYPES)] = {createType<JUS_TYPES>()...};
+
+
+template <typename JUS_RETURN, typename... JUS_TYPES>
+AbstractFunction* createAbstractFunctionDirect(const std::string& _name, const std::string& _desc, JUS_RETURN (*_fffp)(JUS_TYPES...)) {
+	return new AbstractFunctionTypeDirect<JUS_RETURN, JUS_TYPES...>(_name, _desc, _fffp);
+}
+
diff --git a/jus/Client.cpp b/jus/Client.cpp
index d59cdad..5c2ff7a 100644
--- a/jus/Client.cpp
+++ b/jus/Client.cpp
@@ -68,10 +68,13 @@ void jus::Client::disconnect(){
 	JUS_DEBUG("disconnect [STOP]");
 }
 
-ejson::Object jus::Client::createBaseCall(const std::string& _functionName) {
+ejson::Object jus::Client::createBaseCall(const std::string& _service, const std::string& _functionName) {
 	ejson::Object obj;
+	if (_service.size() != 0) {
+		obj.add("service", ejson::String(_service));
+	}
 	obj.add("call", ejson::String(_functionName));
-	obj.add("transaction-id", ejson::Number(m_id++));
+	obj.add("id", ejson::Number(m_id++));
 	obj.add("param", ejson::Array());
 	return obj;
 }
diff --git a/jus/Client.h b/jus/Client.h
index 733add6..5b46989 100644
--- a/jus/Client.h
+++ b/jus/Client.h
@@ -29,7 +29,7 @@ namespace jus {
 			void onClientData(const std::string& _value);
 			std::string asyncRead();
 			ejson::Object callJson(const ejson::Object& _obj);
-			ejson::Object createBaseCall(const std::string& _functionName);
+			ejson::Object createBaseCall( const std::string& _service, const std::string& _functionName);
 			void createParam(ejson::Object& _obj) {
 				// Finish recursive parse ...
 			}
@@ -125,8 +125,8 @@ namespace jus {
 			}
 		public:
 			template<class... _ARGS>
-			void call(const std::string& _functionName, _ARGS&&... _args) {
-				ejson::Object callElem = createBaseCall(_functionName);
+			void call(const std::string& _service, const std::string& _functionName, _ARGS&&... _args) {
+				ejson::Object callElem = createBaseCall(_service, _functionName);
 				createParam(callElem, std::forward<_ARGS>(_args)...);
 				ejson::Object obj = callJson(callElem);
 				if (obj.valueExist("error") == true) {
@@ -134,8 +134,8 @@ namespace jus {
 				}
 			}
 			template<class... _ARGS>
-			int32_t call_i(const std::string& _functionName, _ARGS&&... _args) {
-				ejson::Object callElem = createBaseCall(_functionName);
+			int32_t call_i(const std::string& _service, const std::string& _functionName, _ARGS&&... _args) {
+				ejson::Object callElem = createBaseCall(_service, _functionName);
 				createParam(callElem, std::forward<_ARGS>(_args)...);
 				ejson::Object obj = callJson(callElem);
 				if (obj.valueExist("error") == true) {
@@ -153,8 +153,8 @@ namespace jus {
 				return int32_t(val.toNumber().get());
 			}
 			template<class... _ARGS>
-			double call_d(const std::string& _functionName, _ARGS&&... _args) {
-				ejson::Object callElem = createBaseCall(_functionName);
+			double call_d(const std::string& _service, const std::string& _functionName, _ARGS&&... _args) {
+				ejson::Object callElem = createBaseCall(_service, _functionName);
 				createParam(callElem, std::forward<_ARGS>(_args)...);
 				ejson::Object obj = callJson(callElem);
 				if (obj.valueExist("error") == true) {
@@ -172,8 +172,8 @@ namespace jus {
 				return val.toNumber().get();
 			}
 			template<class... _ARGS>
-			std::string call_s(const std::string& _functionName, _ARGS&&... _args) {
-				ejson::Object callElem = createBaseCall(_functionName);
+			std::string call_s(const std::string& _service, const std::string& _functionName, _ARGS&&... _args) {
+				ejson::Object callElem = createBaseCall(_service, _functionName);
 				createParam(callElem, std::forward<_ARGS>(_args)...);
 				ejson::Object obj = callJson(callElem);
 				if (obj.valueExist("error") == true) {
@@ -191,8 +191,8 @@ namespace jus {
 				return val.toString().get();
 			}
 			template<class... _ARGS>
-			bool call_b(const std::string& _functionName, _ARGS&&... _args) {
-				ejson::Object callElem = createBaseCall(_functionName);
+			bool call_b(const std::string& _service, const std::string& _functionName, _ARGS&&... _args) {
+				ejson::Object callElem = createBaseCall(_service, _functionName);
 				createParam(callElem, std::forward<_ARGS>(_args)...);
 				ejson::Object obj = callJson(callElem);
 				if (obj.valueExist("error") == true) {
@@ -210,8 +210,8 @@ namespace jus {
 				return val.toBoolean().get();
 			}
 			template<class... _ARGS>
-			std::vector<int32_t> call_vi(const std::string& _functionName, _ARGS&&... _args) {
-				ejson::Object callElem = createBaseCall(_functionName);
+			std::vector<int32_t> call_vi(const std::string& _service, const std::string& _functionName, _ARGS&&... _args) {
+				ejson::Object callElem = createBaseCall(_service, _functionName);
 				createParam(callElem, std::forward<_ARGS>(_args)...);
 				ejson::Object obj = callJson(callElem);
 				if (obj.valueExist("error") == true) {
@@ -241,8 +241,8 @@ namespace jus {
 				return out;
 			}
 			template<class... _ARGS>
-			std::vector<double> call_vd(const std::string& _functionName, _ARGS&&... _args) {
-				ejson::Object callElem = createBaseCall(_functionName);
+			std::vector<double> call_vd(const std::string& _service, const std::string& _functionName, _ARGS&&... _args) {
+				ejson::Object callElem = createBaseCall(_service, _functionName);
 				createParam(callElem, std::forward<_ARGS>(_args)...);
 				ejson::Object obj = callJson(callElem);
 				if (obj.valueExist("error") == true) {
@@ -272,8 +272,8 @@ namespace jus {
 				return out;
 			}
 			template<class... _ARGS>
-			std::vector<std::string> call_vs(const std::string& _functionName, _ARGS&&... _args) {
-				ejson::Object callElem = createBaseCall(_functionName);
+			std::vector<std::string> call_vs(const std::string& _service, const std::string& _functionName, _ARGS&&... _args) {
+				ejson::Object callElem = createBaseCall(_service, _functionName);
 				createParam(callElem, std::forward<_ARGS>(_args)...);
 				ejson::Object obj = callJson(callElem);
 				if (obj.valueExist("error") == true) {
@@ -303,8 +303,8 @@ namespace jus {
 				return out;
 			}
 			template<class... _ARGS>
-			std::vector<bool> call_vb(const std::string& _functionName, _ARGS&&... _args) {
-				ejson::Object callElem = createBaseCall(_functionName);
+			std::vector<bool> call_vb(const std::string& _service, const std::string& _functionName, _ARGS&&... _args) {
+				ejson::Object callElem = createBaseCall(_service, _functionName);
 				createParam(callElem, std::forward<_ARGS>(_args)...);
 				ejson::Object obj = callJson(callElem);
 				if (obj.valueExist("error") == true) {
diff --git a/jus/GateWay.cpp b/jus/GateWay.cpp
index 738a17b..09104ae 100644
--- a/jus/GateWay.cpp
+++ b/jus/GateWay.cpp
@@ -10,6 +10,7 @@
 
 
 jus::GateWay::GateWay() :
+  m_clientUID(1),
   propertyClientIp(this, "client-ip", "127.0.0.1", "Ip to listen client", &jus::GateWay::onPropertyChangeClientIp),
   propertyClientPort(this, "client-port", 1983, "Port to listen client", &jus::GateWay::onPropertyChangeClientPort),
   propertyClientMax(this, "client-max", 80, "Maximum of client at the same time", &jus::GateWay::onPropertyChangeClientMax),
@@ -24,17 +25,39 @@ jus::GateWay::~GateWay() {
 }
 
 void jus::GateWay::start() {
-	m_clientWaiting = std::make_shared<jus::GateWayClient>();
+	m_clientWaiting = std::make_shared<jus::GateWayClient>(this);
 	m_clientConnected = m_clientWaiting->signalIsConnected.connect(this, &jus::GateWay::onClientConnect);
-	m_clientWaiting->start(*propertyClientIp, *propertyClientPort);
+	m_clientWaiting->start(*propertyClientIp, *propertyClientPort, m_clientUID++);
+	m_serviceWaiting = std::make_shared<jus::GateWayService>(this);
+	m_serviceConnected = m_serviceWaiting->signalIsConnected.connect(this, &jus::GateWay::onServiceConnect);
+	m_serviceWaiting->start(*propertyServiceIp, *propertyServicePort);
 }
 
 void jus::GateWay::stop() {
 	
 }
 
+ememory::SharedPtr<jus::GateWayService> jus::GateWay::get(const std::string& _serviceName) {
+	for (auto &it : m_serviceList) {
+		if (it == nullptr) {
+			continue;
+		}
+		if (it->getName() != _serviceName) {
+			continue;
+		}
+		return it;
+	}
+	// TODO : Remove this ...
+	return m_serviceWaiting;
+	return nullptr;
+}
+
 void jus::GateWay::onClientConnect(const bool& _value) {
-	JUS_TODO("lklklk: " << _value);
+	JUS_TODO("Client connection: " << _value);
+}
+
+void jus::GateWay::onServiceConnect(const bool& _value) {
+	JUS_TODO("Service connection: " << _value);
 }
 
 void jus::GateWay::onPropertyChangeClientIp() {
diff --git a/jus/GateWay.h b/jus/GateWay.h
index 5bd7140..feef56c 100644
--- a/jus/GateWay.h
+++ b/jus/GateWay.h
@@ -9,12 +9,16 @@
 
 namespace jus {
 	class GateWay : public eproperty::Interface {
+		private:
+			size_t m_clientUID;
 		private:
 			std::vector<ememory::SharedPtr<jus::GateWayService>> m_serviceList; //!< List of all service availlable with their specific connection interface
 			std::vector<ememory::SharedPtr<jus::GateWayClient>> m_clientList; //!< List of all Client interface with their own connection
 			//TODO: std::vector<jus::GateWayServer> m_ServerList; //!< List of all Server connected to this gateway
 			ememory::SharedPtr<jus::GateWayClient> m_clientWaiting;
 			esignal::Connection m_clientConnected;
+			ememory::SharedPtr<jus::GateWayService> m_serviceWaiting;
+			esignal::Connection m_serviceConnected;
 		public:
 			eproperty::Value<std::string> propertyClientIp;
 			eproperty::Value<uint16_t> propertyClientPort;
@@ -27,6 +31,7 @@ namespace jus {
 			virtual ~GateWay();
 			void start();
 			void stop();
+			ememory::SharedPtr<jus::GateWayService> get(const std::string& _serviceName);
 		private:
 			void onPropertyChangeClientIp();
 			void onPropertyChangeClientPort();
@@ -35,6 +40,7 @@ namespace jus {
 			void onPropertyChangeServicePort();
 			void onPropertyChangeServiceMax();
 			void onClientConnect(const bool& _value);
+			void onServiceConnect(const bool& _value);
 	};
 }
 
diff --git a/jus/GateWayClient.cpp b/jus/GateWayClient.cpp
index eae385b..53eae6f 100644
--- a/jus/GateWayClient.cpp
+++ b/jus/GateWayClient.cpp
@@ -7,8 +7,12 @@
 #include <jus/debug.h>
 #include <jus/GateWayClient.h>
 #include <ejson/ejson.h>
+#include <jus/GateWay.h>
+#include <unistd.h>
 
-jus::GateWayClient::GateWayClient() {
+jus::GateWayClient::GateWayClient(jus::GateWay* _gatewayInterface) :
+  m_gatewayInterface(_gatewayInterface),
+  m_returnValueOk(false) {
 	
 }
 
@@ -16,11 +20,13 @@ jus::GateWayClient::~GateWayClient() {
 	
 }
 
-void jus::GateWayClient::start(const std::string& _ip, uint16_t _port) {
+void jus::GateWayClient::start(const std::string& _ip, uint16_t _port, size_t _uid) {
 	m_interfaceClient.propertyIp.set(_ip);
 	m_interfaceClient.propertyPort.set(_port);
+	m_uid = _uid;
 	m_interfaceClient.propertyServer.set(true);
-	m_interfaceClient.connect();
+	m_interfaceClient.connect(true);
+	m_interfaceClient.setInterfaceName("cli-" + etk::to_string(m_uid));
 	m_dataCallback = m_interfaceClient.signalData.connect(this, &jus::GateWayClient::onClientData);
 }
 
@@ -42,7 +48,7 @@ void jus::GateWayClient::onClientData(const std::string& _value) {
 		std::string call = data["call"].toString().get();
 		ejson::Object answer;
 		answer.add("from-service", ejson::String("ServiceManager"));
-		answer.add("transaction-id", data["transaction-id"]);
+		answer.add("id", data["id"]);
 		if (call == "getServiceCount") {
 			// TODO : Do it better:
 			answer.add("return", ejson::Number(2));
@@ -53,6 +59,21 @@ void jus::GateWayClient::onClientData(const std::string& _value) {
 			answer.add("return", listService);
 		} else if (call == "getServiceInformation") {
 			
+		} else if (call == "link") {
+			// first param :
+			std::string serviceName = data["param"].toArray()[0].toString().get();
+			// TODO : check if already connected ...
+			//m_listConnectedService
+			// TODO : check if we have authorisation to connect service
+			ememory::SharedPtr<jus::GateWayService> srv = m_gatewayInterface->get(serviceName);
+			if (srv != nullptr) {
+				m_listConnectedService.push_back(srv);
+				answer.add("return", ejson::Boolean(true));
+			} else {
+				answer.add("return", ejson::Boolean(false));
+			}
+		} else if (call == "unlink") {
+			answer.add("return", ejson::Boolean(false));
 		} else {
 			JUS_ERROR("Function does not exist ... '" << call << "'");
 			answer.add("error", ejson::String("CALL-UNEXISTING"));
@@ -64,7 +85,28 @@ void jus::GateWayClient::onClientData(const std::string& _value) {
 		std::string call = data["call"].toString().get();
 		
 	} else {
-		JUS_TODO("mmmmmmmmmmm: " << _value);
+		for (auto &it : m_listConnectedService) {
+			if (it == nullptr) {
+				continue;
+			}
+			if (it->getName() != service) {
+				continue;
+			}
+			it->SendData(m_uid, data);
+			while (m_returnValueOk == false) {
+				JUS_DEBUG("wait Return Value");
+				usleep(20000);
+			}
+			std::string valueReturn = m_returnMessage.generate();
+			JUS_DEBUG("answer: " << valueReturn);
+			m_interfaceClient.write(valueReturn);
+			m_returnValueOk = false;
+			break;
+		}
 	}
 }
 
+void jus::GateWayClient::returnMessage(ejson::Object _data) {
+	m_returnMessage = _data;
+	m_returnValueOk = true;
+}
\ No newline at end of file
diff --git a/jus/GateWayClient.h b/jus/GateWayClient.h
index 101dc3b..7b69fd9 100644
--- a/jus/GateWayClient.h
+++ b/jus/GateWayClient.h
@@ -8,19 +8,28 @@
 #include <jus/TcpString.h>
 #include <ememory/memory.h>
 #include <esignal/Signal.h>
+#include <jus/GateWayService.h>
 
 namespace jus {
+	class GateWay;
 	class GateWayClient {
+		private:
+			jus::GateWay* m_gatewayInterface;
 		public:
 			jus::TcpString m_interfaceClient;
 			esignal::Signal<bool> signalIsConnected;
 			esignal::Connection m_dataCallback;
+			bool m_returnValueOk;
+			ejson::Object m_returnMessage;
+			std::vector<ememory::SharedPtr<jus::GateWayService>> m_listConnectedService;
+			size_t m_uid;
 		public:
-			GateWayClient();
+			GateWayClient(jus::GateWay* _gatewayInterface);
 			virtual ~GateWayClient();
-			void start(const std::string& _ip, uint16_t _port);
+			void start(const std::string& _ip, uint16_t _port, size_t _uid);
 			void stop();
 			void onClientData(const std::string& _value);
+			void returnMessage(ejson::Object _data);
 	};
 }
 
diff --git a/jus/GateWayService.cpp b/jus/GateWayService.cpp
index e69de29..e516508 100644
--- a/jus/GateWayService.cpp
+++ b/jus/GateWayService.cpp
@@ -0,0 +1,60 @@
+/** @file
+ * @author Edouard DUPIN
+ * @copyright 2016, Edouard DUPIN, all right reserved
+ * @license APACHE v2.0 (see license file)
+ */
+
+#include <jus/debug.h>
+#include <jus/GateWayService.h>
+#include <ejson/ejson.h>
+
+jus::GateWayService::GateWayService(jus::GateWay* _gatewayInterface) :
+  m_gatewayInterface(_gatewayInterface) {
+	
+}
+
+jus::GateWayService::~GateWayService() {
+	
+}
+
+void jus::GateWayService::start(const std::string& _ip, uint16_t _port) {
+	m_interfaceClient.propertyIp.set(_ip);
+	m_interfaceClient.propertyPort.set(_port);
+	m_interfaceClient.propertyServer.set(true);
+	m_interfaceClient.connect(true);
+	m_interfaceClient.setInterfaceName("srv-?");
+	m_dataCallback = m_interfaceClient.signalData.connect(this, &jus::GateWayService::onClientData);
+}
+
+void jus::GateWayService::stop() {
+	m_interfaceClient.disconnect();
+}
+
+void jus::GateWayService::SendData(size_t _userSessionId, ejson::Object _data) {
+	_data.add("client-id", ejson::String(etk::to_string(_userSessionId)));
+	_data.add("action", ejson::String("call"));
+	std::string value = _data.generate();
+	JUS_DEBUG("Send Service: " << value);
+	m_interfaceClient.write(value);
+}
+
+void jus::GateWayService::onClientData(const std::string& _value) {
+	JUS_DEBUG("On service data: " << _value);
+	ejson::Object data(_value);
+	if (data.valueExist("connect-service") == true) {
+		if (m_name != "") {
+			JUS_WARNING("Service interface ==> try change the servie name after init: '" << data["connect-service"].toString().get());
+			return;
+		}
+		m_name = data["connect-service"].toString().get();
+		m_interfaceClient.setInterfaceName("srv-" + m_name);
+		JUS_WARNING("Service name configured");
+		return;
+	}
+	if (data.valueExist("client-id") == false) {
+		JUS_WARNING("Service interface ==> wrong service answer ==> missing 'client-id'");
+		return;
+	}
+	JUS_TODO("plop...........");
+}
+
diff --git a/jus/GateWayService.h b/jus/GateWayService.h
index 62c0569..20feb37 100644
--- a/jus/GateWayService.h
+++ b/jus/GateWayService.h
@@ -7,15 +7,30 @@
 
 #include <jus/TcpString.h>
 #include <ememory/memory.h>
+#include <esignal/Signal.h>
+#include <ejson/ejson.h>
 
 namespace jus {
+	class GateWay;
 	class GateWayService {
-		public:
-			ememory::SharedPtr<jus::TcpString> m_interfaceService;
+		private:
+			jus::GateWay* m_gatewayInterface;
 			std::string m_name;
 		public:
-			GateWayService(const ememory::SharedPtr<jus::TcpString>& _interface);
+			jus::TcpString m_interfaceClient;
+			esignal::Signal<bool> signalIsConnected;
+			esignal::Connection m_dataCallback;
+		public:
+			GateWayService(jus::GateWay* _gatewayInterface);
 			virtual ~GateWayService();
+			void start(const std::string& _ip, uint16_t _port);
+			void stop();
+			void onClientData(const std::string& _value);
+		public:
+			void SendData(size_t _userSessionId, ejson::Object _data);
+			const std::string& getName() {
+				return m_name;
+			}
 	};
 }
 
diff --git a/jus/ParamType.cpp b/jus/ParamType.cpp
new file mode 100644
index 0000000..eda8e9d
--- /dev/null
+++ b/jus/ParamType.cpp
@@ -0,0 +1,28 @@
+/** @file
+ * @author Edouard DUPIN
+ * @copyright 2016, Edouard DUPIN, all right reserved
+ * @license APACHE v2.0 (see license file)
+ */
+
+#include <jus/ParamType.h>
+#include <jus/debug.h>
+
+#define generate_basic_type(_type, _name) \
+template<> ParamType createType<_type>() {\
+	return ParamType(_name); \
+}
+
+generate_basic_type(void, "void");
+generate_basic_type(bool, "bool");
+generate_basic_type(float, "float");
+generate_basic_type(double, "double");
+generate_basic_type(int64_t, "int64");
+generate_basic_type(int32_t, "int32");
+generate_basic_type(int16_t, "int16");
+generate_basic_type(int8_t, "int8");
+generate_basic_type(uint64_t, "uint64");
+generate_basic_type(uint32_t, "uint32");
+generate_basic_type(uint16_t, "uint16");
+generate_basic_type(uint8_t, "uint8");
+generate_basic_type(std::string, "string");
+
diff --git a/jus/ParamType.h b/jus/ParamType.h
new file mode 100644
index 0000000..0bf1f30
--- /dev/null
+++ b/jus/ParamType.h
@@ -0,0 +1,28 @@
+/** @file
+ * @author Edouard DUPIN
+ * @copyright 2016, Edouard DUPIN, all right reserved
+ * @license APACHE v2.0 (see license file)
+ */
+#pragma once
+
+class ParamType {
+	protected:
+		const char* m_typeName;
+	public:
+		ParamType(const char* _name = ""):
+		  m_typeName(_name) {
+			
+		}
+		const char* getName() const {
+			return m_typeName;
+		}
+		bool operator == (const ParamType& _obj) const {
+			return m_typeName == _obj.m_typeName;
+		}
+};
+
+
+template<class JUS_TYPE>
+ParamType createType();
+
+
diff --git a/jus/Service.cpp b/jus/Service.cpp
index 3ca4623..e6dd03c 100644
--- a/jus/Service.cpp
+++ b/jus/Service.cpp
@@ -6,166 +6,16 @@
 
 #include <jus/Service.h>
 #include <jus/debug.h>
+#include <etk/stdTools.h>
+#include <ejson/ejson.h>
 
 #include <unistd.h>
 
-generate_basic_type(void, "void");
-generate_basic_type(bool, "bool");
-generate_basic_type(float, "float");
-generate_basic_type(double, "double");
-generate_basic_type(int64_t, "int64");
-generate_basic_type(int32_t, "int32");
-generate_basic_type(int16_t, "int16");
-generate_basic_type(int8_t, "int8");
-generate_basic_type(uint64_t, "uint64");
-generate_basic_type(uint32_t, "uint32");
-generate_basic_type(uint16_t, "uint16");
-generate_basic_type(uint8_t, "uint8");
-generate_basic_type(std::string, "string");
-
-template<> bool convertJsonTo<bool>(const ejson::Value& _value) {
-	return _value.toBoolean().get();
-}
-template<> float convertJsonTo<float>(const ejson::Value& _value) {
-	return _value.toNumber().get();
-}
-template<> double convertJsonTo<double>(const ejson::Value& _value) {
-	return _value.toNumber().get();
-}
-template<> int64_t convertJsonTo<int64_t>(const ejson::Value& _value) {
-	return int64_t(_value.toNumber().get());
-}
-template<> int32_t convertJsonTo<int32_t>(const ejson::Value& _value) {
-	//_value.display();
-	return int32_t(_value.toNumber().get());
-}
-template<> int16_t convertJsonTo<int16_t>(const ejson::Value& _value) {
-	return int16_t(_value.toNumber().get());
-}
-template<> int8_t convertJsonTo<int8_t>(const ejson::Value& _value) {
-	return int8_t(_value.toNumber().get());
-}
-template<> uint64_t convertJsonTo<uint64_t>(const ejson::Value& _value) {
-	return uint64_t(_value.toNumber().get());
-}
-template<> uint32_t convertJsonTo<uint32_t>(const ejson::Value& _value) {
-	return uint32_t(_value.toNumber().get());
-}
-template<> uint16_t convertJsonTo<uint16_t>(const ejson::Value& _value) {
-	return uint16_t(_value.toNumber().get());
-}
-template<> uint8_t convertJsonTo<uint8_t>(const ejson::Value& _value) {
-	return uint8_t(_value.toNumber().get());
-}
-template<> std::string convertJsonTo<std::string>(const ejson::Value& _value) {
-	//_value.display();
-	return _value.toString().get();
-}
-
-template<> ejson::Value convertToJson<bool>(const bool& _value) {
-	return ejson::Boolean(_value);
-}
-template<> ejson::Value convertToJson<float>(const float& _value) {
-	return ejson::Number(_value);
-}
-template<> ejson::Value convertToJson<double>(const double& _value) {
-	return ejson::Number(_value);
-}
-template<> ejson::Value convertToJson<int64_t>(const int64_t& _value) {
-	return ejson::Number(_value);
-}
-template<> ejson::Value convertToJson<int32_t>(const int32_t& _value) {
-	return ejson::Number(_value);
-}
-template<> ejson::Value convertToJson<int16_t>(const int16_t& _value) {
-	return ejson::Number(_value);
-}
-template<> ejson::Value convertToJson<int8_t>(const int8_t& _value) {
-	return ejson::Number(_value);
-}
-template<> ejson::Value convertToJson<uint64_t>(const uint64_t& _value) {
-	return ejson::Number(_value);
-}
-template<> ejson::Value convertToJson<uint32_t>(const uint32_t& _value) {
-	return ejson::Number(_value);
-}
-template<> ejson::Value convertToJson<uint16_t>(const uint16_t& _value) {
-	return ejson::Number(_value);
-}
-template<> ejson::Value convertToJson<uint8_t>(const uint8_t& _value) {
-	return ejson::Number(_value);
-}
-template<> ejson::Value convertToJson<std::string>(const std::string& _value) {
-	return ejson::String(_value);
-}
-
-template<> bool convertStringTo<bool>(const std::string& _value) {
-	return etk::string_to_bool(_value);
-}
-template<> float convertStringTo<float>(const std::string& _value) {
-	return etk::string_to_float(_value);
-}
-template<> double convertStringTo<double>(const std::string& _value) {
-	return etk::string_to_double(_value);
-}
-template<> int64_t convertStringTo<int64_t>(const std::string& _value) {
-	return etk::string_to_int64_t(_value);
-}
-template<> int32_t convertStringTo<int32_t>(const std::string& _value) {
-	return etk::string_to_int32_t(_value);
-}
-template<> int16_t convertStringTo<int16_t>(const std::string& _value) {
-	return etk::string_to_int16_t(_value);
-}
-template<> int8_t convertStringTo<int8_t>(const std::string& _value) {
-	return etk::string_to_int8_t(_value);
-}
-template<> uint64_t convertStringTo<uint64_t>(const std::string& _value) {
-	return etk::string_to_uint64_t(_value);
-}
-template<> uint32_t convertStringTo<uint32_t>(const std::string& _value) {
-	return etk::string_to_uint32_t(_value);
-}
-template<> uint16_t convertStringTo<uint16_t>(const std::string& _value) {
-	return etk::string_to_uint16_t(_value);
-}
-template<> uint8_t convertStringTo<uint8_t>(const std::string& _value) {
-	return etk::string_to_uint8_t(_value);
-}
-template<> std::string convertStringTo<std::string>(const std::string& _value) {
-	return _value;
-}
-
-bool CmdBase::checkCompatibility(const ParamType& _type, const ejson::Value& _params) {
-	if (createType<bool>() == _type) {
-		return _params.isBoolean();
-	}
-	if (    createType<int64_t>() == _type
-	     || createType<int32_t>() == _type
-	     || createType<int16_t>() == _type
-	     || createType<int8_t>() == _type
-	     || createType<uint64_t>() == _type
-	     || createType<uint32_t>() == _type
-	     || createType<uint16_t>() == _type
-	     || createType<uint8_t>() == _type
-	     || createType<float>() == _type
-	     || createType<double>() == _type) {
-		return _params.isNumber();
-	}
-	if (createType<std::string>() == _type) {
-		return _params.isString();
-	}
-	return false;
-}
-bool CmdBase::checkCompatibility(const ParamType& _type, const std::string& _params) {
-	return false;
-}
-
 
 
 jus::Service::Service() :
   propertyIp(this, "ip", "127.0.0.1", "Ip to connect server", &jus::Service::onPropertyChangeIp),
-  propertyPort(this, "port", 1984, "Port to connect server", &jus::Service::onPropertyChangePort),
+  propertyPort(this, "port", 1982, "Port to connect server", &jus::Service::onPropertyChangePort),
   m_id(0) {
 	m_interfaceClient.propertyIp.set(*propertyIp);
 	m_interfaceClient.propertyPort.set(*propertyPort);
@@ -192,9 +42,10 @@ void jus::Service::onPropertyChangePort(){
 }
 
 
-void jus::Service::connect(){
+void jus::Service::connect(const std::string& _serviceName){
 	JUS_DEBUG("connect [START]");
 	m_interfaceClient.connect();
+	m_interfaceClient.write(std::string("{\"connect-service\":\"") + _serviceName + "\"}");
 	JUS_DEBUG("connect [STOP]");
 }
 
@@ -205,13 +56,26 @@ void jus::Service::disconnect(){
 }
 
 ejson::Object jus::Service::callJson(const ejson::Object& _obj) {
-	/*
-	JUS_VERBOSE("Call JSON [START] ");
-	std::string tmpVal = _obj.generate();
-	JUS_DEBUG("Call JSON '" << tmpVal << "'");
-	m_interfaceClient.write(_obj.generate());
-	std::string ret = asyncRead();
-	JUS_VERBOSE("Call JSON [STOP]");
-	*/
+	std::string action = _obj["action"].toString().get();
+	if (action == "new") {
+		uint64_t clientId = etk::string_to_uint64_t(_obj["client-id"].toString().get());
+		std::string userName = _obj["user"].toString().get();
+		clientConnect(clientId, userName);
+		ejson::Object tmpp;
+		tmpp.add("return", ejson::String("OK"));
+		return tmpp;
+	} else if (action == "delete") {
+		uint64_t clientId = etk::string_to_uint64_t(_obj["client-id"].toString().get());
+		clientDisconnect(clientId);
+		ejson::Object tmpp;
+		tmpp.add("return", ejson::String("OK"));
+		return tmpp;
+	} else if (    action == "call"
+	            || action == "") {
+		uint64_t clientId = etk::string_to_uint64_t(_obj["client-id"].toString().get());
+		return callJson2(clientId, _obj);
+	} else {
+		// TODO : ...
+	}
 	return ejson::Object();
 }
diff --git a/jus/Service.h b/jus/Service.h
index c7b97a9..dc2e998 100644
--- a/jus/Service.h
+++ b/jus/Service.h
@@ -8,240 +8,10 @@
 #include <jus/TcpString.h>
 #include <eproperty/Value.h>
 #include <ejson/ejson.h>
+#include <jus/AbstractFunctionTypeDirect.h>
+#include <jus/AbstractFunctionTypeClass.h>
 #include <jus/debug.h>
 
-class ParamType {
-	protected:
-		const char* m_typeName;
-	public:
-		ParamType(const char* _name = ""):
-		  m_typeName(_name) {
-			
-		}
-		const char* getName() const {
-			return m_typeName;
-		}
-		bool operator == (const ParamType& _obj) const {
-			return m_typeName == _obj.m_typeName;
-		}
-};
-
-template<class JUS_TYPE>
-ParamType createType();
-
-#define generate_basic_type(_type, _name) \
-template<> ParamType createType<_type>() {\
-	return ParamType(_name); \
-}
-
-class CmdBase {
-	protected:
-		const std::string m_name;
-	public:
-		const std::string& getName() const {
-			return m_name;
-		}
-	protected:
-		const std::string m_description;
-	public:
-		const std::string& getDescription() const {
-			return m_description;
-		}
-	protected:
-		CmdBase(const std::string& _name,
-		        const std::string& _desc):
-		  m_name(_name),
-		  m_description(_desc) {
-			
-		}
-	public:
-		virtual ~CmdBase() {};
-		bool checkCompatibility(const ParamType& _type, const ejson::Value& _params);
-		bool checkCompatibility(const ParamType& _type, const std::string& _params);
-	public:
-		virtual std::string getPrototype() const = 0;
-		virtual ejson::Value executeJson(const ejson::Array& _params) = 0;
-		virtual std::string executeString(const std::vector<std::string>& _params) = 0;
-};
-
-template<class JUS_TYPE>
-JUS_TYPE convertStringTo(const std::string& _value);
-
-template<class JUS_TYPE>
-JUS_TYPE convertJsonTo(const ejson::Value& _value);
-
-template<class JUS_TYPE>
-ejson::Value convertToJson(const JUS_TYPE& _value);
-
-template <class, class...>
-class TypeList;
-
-template <class JUS_RETURN, class... JUS_TYPES>
-ejson::Value executeCallJson(JUS_RETURN (*_func)(JUS_TYPES...), const ejson::Array& _params) {
-	#if defined(__clang__)
-		// clang generate a basic warning:
-		//      warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
-		int32_t idParam = 0;
-		return convertToJson(_func((convertJsonTo<JUS_TYPES>(_params[idParam++]))...));
-	#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
-		int32_t idParam = m_paramCount-1;
-		return convertToJson(_func(convertJsonTo<JUS_TYPES>(_params[idParam--])...));
-	#else
-		#error Must be implemented ...
-	#endif
-	return ejson::Null();
-}
-
-template <class... JUS_TYPES>
-ejson::Value executeCallJson(void (*_func)(JUS_TYPES...), const ejson::Array& _params) {
-	ejson::Object out;
-	#if defined(__clang__)
-		// clang generate a basic warning:
-		//      warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
-		int32_t idParam = 0;
-		_func((convertJsonTo<JUS_TYPES>(_params[idParam++]))...);
-	#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
-		int32_t idParam = m_paramCount-1;
-		_func(convertJsonTo<JUS_TYPES>(_params[idParam--])...);
-	#else
-		#error Must be implemented ...
-	#endif
-	return ejson::Null();
-}
-
-template <class JUS_RETURN, class... JUS_TYPES>
-std::string executeCallString(JUS_RETURN (*_func)(JUS_TYPES...), const std::vector<std::string>& _params) {
-	#if defined(__clang__)
-		// clang generate a basic warning:
-		//      warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
-		int32_t idParam = 0;
-		return etk::to_string(_func((convertStringTo<JUS_TYPES>(_params[idParam++]))...));
-	#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
-		int32_t idParam = m_paramCount-1;
-		return etk::to_string(_func(convertStringTo<JUS_TYPES>(_params[idParam--])...));
-	#else
-		#error Must be implemented ...
-	#endif
-	return "";
-}
-template <class... JUS_TYPES>
-std::string executeCallString(void (*_func)(JUS_TYPES...), const std::vector<std::string>& _params) {
-	ejson::Object out;
-	#if defined(__clang__)
-		// clang generate a basic warning:
-		//      warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
-		int32_t idParam = 0;
-		_func((convertStringTo<JUS_TYPES>(_params[idParam++]))...);
-	#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
-		int32_t idParam = m_paramCount-1;
-		_func(convertStringTo<JUS_TYPES>(_params[idParam--])...);
-	#else
-		#error Must be implemented ...
-	#endif
-	return "";
-}
-
-template <class JUS_RETURN, class... JUS_TYPES>
-class TypeList: public CmdBase {
-	protected:
-		static const ParamType m_returnType;
-		static const ParamType m_paramType[sizeof...(JUS_TYPES)];
-		static const int32_t m_paramCount;
-	public:
-		using functionType = JUS_RETURN (*)(JUS_TYPES...);
-		functionType m_function;
-		TypeList(const std::string& _name, const std::string& _desc, functionType _fptr):
-		  CmdBase(_name, _desc),
-		  m_function(_fptr) {
-		}
-		std::string getPrototype() const override {
-			std::string ret;
-			ret += m_returnType.getName();
-			ret += " ";
-			ret += m_name;
-			ret += "(";
-			for (size_t iii=0; iii<m_paramCount; ++iii) {
-				if (iii != 0) {
-					ret += ", ";
-				}
-				ret += m_paramType[iii].getName();
-			}
-			ret += ");";
-			return ret;
-		}
-		ejson::Value executeJson(const ejson::Array& _params) override {
-			ejson::Object out;
-			// check parameter number
-			if (_params.size() != m_paramCount) {
-				JUS_ERROR("Wrong number of Parameters ...");
-				out.add("error", ejson::String("WRONG-PARAMETER-NUMBER"));
-				std::string help = "request ";
-				help += etk::to_string(_params.size());
-				help += " parameters and need ";
-				help += etk::to_string(m_paramCount);
-				help += " parameters. prototype function:";
-				help += getPrototype();
-				out.add("error-help", ejson::String(help));
-				return out;
-			}
-			// check parameter compatibility
-			for (size_t iii=0; iii<m_paramCount; ++iii) {
-				if (checkCompatibility(m_paramType[iii], _params[iii]) == false) {
-					out.add("error", ejson::String("WRONG-PARAMETER-TYPE"));
-					out.add("error-help", ejson::String("Parameter id " + etk::to_string(iii) + " not compatible with type: '" + m_paramType[iii].getName() + "'"));
-					return out;
-				}
-			}
-			// execute cmd:
-			ejson::Value retVal = executeCallJson(m_function, _params);
-			out.add("return", retVal);
-			return out;
-		}
-		std::string executeString(const std::vector<std::string>& _params) override {
-			std::string out;
-			// check parameter number
-			if (_params.size() != m_paramCount) {
-				JUS_ERROR("Wrong number of Parameters ...");
-				out += "error:WRONG-PARAMETER-NUMBER;";
-				out += "error-help:request ";
-				out += etk::to_string(_params.size());
-				out += " parameters and need ";
-				out += etk::to_string(m_paramCount);
-				out += " parameters. prototype function:";
-				out += getPrototype();
-				return out;
-			}
-			// check parameter compatibility
-			for (size_t iii=0; iii<m_paramCount; ++iii) {
-				if (checkCompatibility(m_paramType[iii], _params[iii]) == false) {
-					out += "error:WRONG-PARAMETER-TYPE;";
-					out += "error-help:Parameter id " + etk::to_string(iii) + " not compatible with type: '" + m_paramType[iii].getName() + "'";
-					return out;
-				}
-			}
-			// execute cmd:
-			out = executeCallString(m_function, _params);
-			return out;
-		}
-};
-
-template <class JUS_RETURN, class... JUS_TYPES>
-const ParamType TypeList<JUS_RETURN, JUS_TYPES...>::m_returnType = createType<JUS_RETURN>();
-
-template <class JUS_RETURN, class... JUS_TYPES>
-const ParamType TypeList<JUS_RETURN, JUS_TYPES...>::m_paramType[sizeof...(JUS_TYPES)] = {createType<JUS_TYPES>()...};
-
-template <class JUS_RETURN, class... JUS_TYPES>
-const int32_t TypeList<JUS_RETURN, JUS_TYPES...>::m_paramCount = sizeof...(JUS_TYPES);
-
-
-template <typename JUS_RETURN, typename... JUS_TYPES>
-CmdBase* createCmd(const std::string& _name, const std::string& _desc, JUS_RETURN (*_fffp)(JUS_TYPES...)) {
-	return new TypeList<JUS_RETURN, JUS_TYPES...>(_name, _desc, _fffp);
-}
-
-
-
 static double mulllll(double _val1) {
 	double _val2 = 2.0f;
 	JUS_ERROR("Call with parameter : " << _val1);
@@ -278,7 +48,8 @@ namespace jus {
 			virtual ~Service();
 			// Genenric function call:
 			ejson::Object callJson(const ejson::Object& _obj);
-			void connect();
+			virtual ejson::Object callJson2(size_t _clientId, const ejson::Object& _obj) = 0;
+			void connect(const std::string& _serviceName);
 			void disconnect();
 		private:
 			void onClientData(const std::string& _value);
@@ -286,47 +57,14 @@ namespace jus {
 		private:
 			void onPropertyChangeIp();
 			void onPropertyChangePort();
-		protected:
-			
-			void createSignatureInternal(std::vector<std::string>& _signature) {
-				// Finish recursive parse ...
-			}
-			template<class... _ARGS>
-			void createSignatureInternal(std::vector<std::string>& _signature, const std::string& _param, _ARGS&&... _args) {
-				_signature.push_back("string");
-				createSignatureInternal(_signature, std::forward<_ARGS>(_args)...);
-			}
-			template<class... _ARGS>
-			void createSignatureInternal(std::vector<std::string>& _signature, const bool& _param, _ARGS&&... _args) {
-				_signature.push_back("bool");
-				createSignatureInternal(_signature, std::forward<_ARGS>(_args)...);
-			}
-			template<class... _ARGS>
-			void createSignatureInternal(std::vector<std::string>& _signature, const double& _param, _ARGS&&... _args) {
-				_signature.push_back("double");
-				createSignatureInternal(_signature, std::forward<_ARGS>(_args)...);
-			}
-			template<class... _ARGS>
-			void createSignatureInternal(std::vector<std::string>& _signature, const int32_t& _param, _ARGS&&... _args) {
-				_signature.push_back("int32");
-				createSignatureInternal(_signature, std::forward<_ARGS>(_args)...);
-			}
-			template<class... _ARGS>
-			std::vector<std::string> createSignature(_ARGS&&... _args) {
-				std::vector<std::string> signature;
-				createSignatureInternal(signature, std::forward<_ARGS>(_args)...);
-				return signature;
-			}
-			
+		public:
 			template<class JUS_RETURN_VALUE,
-			         class JUS_CLASS_TYPE,
 			         class... JUS_FUNC_ARGS_TYPE>
 			void advertise(const std::string& _name,
-			               JUS_RETURN_VALUE (JUS_CLASS_TYPE::*_func)(const JUS_FUNC_ARGS_TYPE&... _args),
+			               JUS_RETURN_VALUE (*_func)(JUS_FUNC_ARGS_TYPE... _args),
 			               const std::string& _desc) {
-				
-				//CmdBase* tmp = createCmd(_name, &mulllll);
-				CmdBase* tmp = createCmd(_name, "desc", &mulllll);
+				//AbstractFunction* tmp = createAbstractFunctionDirect(_name, &mulllll);
+				AbstractFunction* tmp = createAbstractFunctionDirect(_name, "desc", &mulllll);
 				JUS_ERROR("Signature : " << tmp->getPrototype());
 				{
 					ejson::Array param;
@@ -337,7 +75,7 @@ namespace jus {
 				}
 				
 				
-				tmp = createCmd(_name, "desc", &mulllll2);
+				tmp = createAbstractFunctionDirect(_name, "desc", &mulllll2);
 				JUS_ERROR("Signature2 : " << tmp->getPrototype());
 				{
 					ejson::Array param;
@@ -347,20 +85,80 @@ namespace jus {
 					JUS_ERROR("    return: ");
 					out.display();
 				}
-				tmp = createCmd(_name, "desc", &mulllll3);
+				tmp = createAbstractFunctionDirect(_name, "desc", &mulllll3);
 				JUS_ERROR("Signature3 : " << tmp->getPrototype());
 				JUS_ERROR("    return: " << tmp->executeString(etk::split("3.5 false", ' ')));
 				
-				tmp = createCmd(_name, "desc", &mulllll4);
+				tmp = createAbstractFunctionDirect(_name, "desc", &mulllll4);
 				JUS_ERROR("Signature4 : " << tmp->getPrototype());
-				/*
-				std::vector<std::string> plop = createSignature(_args):
-				JUS_ERROR("signature:");
-				for (auto& it : plop) {
-					JUS_ERROR("    - " << it);
+			}
+			/**
+			 * @brief A extern client connect on specific user
+			 * @param[in] _clientSessionID Source session Id on the client
+			 * @param[in] _userName User name of the client to connect
+			 * @todo Set a relur like ==> service not availlable / service close / service maintenance / service right reject
+			 */
+			virtual void clientConnect(size_t _clientSessionID, const std::string& _userName) = 0;
+			virtual void clientDisconnect(size_t _clientSessionID) = 0;
+	};
+	template<class JUS_TYPE_SERVICE, class JUS_USER_ACCESS>
+	class ServiceType : public jus::Service {
+		private:
+			JUS_USER_ACCESS& m_getUserInterface;
+			// no need of shared_ptr or unique_ptr (if service die all is lost and is client die, the gateway notify us...)
+			std::map<size_t, JUS_TYPE_SERVICE*> m_interface;
+			std::vector<AbstractFunction*> m_listFunction;
+		public:
+			template<class JUS_RETURN_VALUE,
+			         class JUS_CLASS_TYPE,
+			         class... JUS_FUNC_ARGS_TYPE>
+			void advertise(const std::string& _name,
+			               JUS_RETURN_VALUE (JUS_CLASS_TYPE::*_func)(JUS_FUNC_ARGS_TYPE... _args),
+			               const std::string& _desc) {
+				// TODO: check if fucntion does not exist ...
+				AbstractFunction* tmp = createAbstractFunctionClass(_name, _desc, _func);
+				m_listFunction.push_back(tmp);
+			}
+			ServiceType(JUS_USER_ACCESS& _interface):
+			  m_getUserInterface(_interface) {
+				
+			}
+			void clientConnect(size_t _clientSessionID, const std::string& _userName) {
+				// TODO : Set a mutex ...
+				m_interface.insert(std::make_pair(_clientSessionID, new JUS_TYPE_SERVICE(m_getUserInterface.getUser(_userName))));
+			}
+			void clientDisconnect(size_t _clientSessionID) {
+				auto it = m_interface.find(_clientSessionID);
+				if (it != m_interface.end()) {
+					// noting to do ==> user never conected.
+					return;
 				}
-				*/
+				// TODO : Set a mutex ...
+				m_interface.erase(it);
+			}
+			ejson::Object callJson2(size_t _clientSessionID, const ejson::Object& _obj) {
+				ejson::Object out;
+				auto it = m_interface.find(_clientSessionID);
+				if (it == m_interface.end()) {
+					out.add("error", ejson::String("CLIENT-UNKNOW"));
+					return out;
+				}
+				std::string call = _obj["call"].toString().get();
+				const ejson::Array param = _obj["param"].toArray();
+				for (auto &it2 : m_listFunction) {
+					if (it2 == nullptr) {
+						continue;
+					}
+					if (it2->getName() != call) {
+						continue;
+					}
+					JUS_TYPE_SERVICE* elem = it->second;
+					return it2->executeJson(param, (void*)elem).toObject();
+				}
+				out.add("error", ejson::String("FUNCTION-UNKNOW"));
+				return out;
 			}
 	};
 }
 
+
diff --git a/jus/TcpString.cpp b/jus/TcpString.cpp
index c4e2959..12ce6bc 100644
--- a/jus/TcpString.cpp
+++ b/jus/TcpString.cpp
@@ -25,6 +25,10 @@ jus::TcpString::~TcpString() {
 	disconnect();
 }
 
+void jus::TcpString::setInterfaceName(const std::string& _name) {
+	ethread::setName(*m_thread, "Tcp-" + _name);
+}
+
 void jus::TcpString::threadCallback() {
 	ethread::setName("TcpString-input");
 	// Connect ...
@@ -52,7 +56,7 @@ void jus::TcpString::threadCallback() {
 	JUS_DEBUG("End of thread");
 }
 
-void jus::TcpString::connect(){
+void jus::TcpString::connect(bool _async){
 	JUS_DEBUG("connect [START]");
 	m_threadRunning = true;
 	m_thread = new std::thread([&](void *){ this->threadCallback();}, nullptr);
@@ -61,12 +65,17 @@ void jus::TcpString::connect(){
 		JUS_ERROR("creating callback thread!");
 		return;
 	}
-	while (    m_threadRunning == true
+	while (    _async == false
+	        && m_threadRunning == true
 	        && m_connection.getConnectionStatus() != enet::Tcp::status::link) {
 		usleep(50000);
 	}
 	//ethread::setPriority(*m_receiveThread, -6);
-	JUS_DEBUG("connect [STOP]");
+	if (_async == true) {
+		JUS_DEBUG("connect [STOP] async mode");
+	} else {
+		JUS_DEBUG("connect [STOP]");
+	}
 }
 
 void jus::TcpString::disconnect(){
diff --git a/jus/TcpString.h b/jus/TcpString.h
index 6b8329d..fc80eab 100644
--- a/jus/TcpString.h
+++ b/jus/TcpString.h
@@ -25,8 +25,9 @@ namespace jus {
 		public:
 			TcpString();
 			virtual ~TcpString();
-			void connect();
+			void connect(bool _async = false);
 			void disconnect();
+			void setInterfaceName(const std::string& _name);
 			int32_t write(const std::string& _data);
 			std::string asyncRead();
 		private:
diff --git a/lutin_jus.py b/lutin_jus.py
index 66ed00b..ed7ceb1 100644
--- a/lutin_jus.py
+++ b/lutin_jus.py
@@ -32,6 +32,10 @@ def create(target, module_name):
 	    ])
 	my_module.add_path(tools.get_current_path(__file__))
 	my_module.add_src_file([
+	    'jus/AbstractFunction.cpp',
+	    'jus/AbstractFunctionTypeDirect.cpp',
+	    'jus/AbstractFunctionTypeClass.cpp',
+	    'jus/ParamType.cpp',
 	    'jus/Client.cpp',
 	    'jus/GateWay.cpp',
 	    'jus/GateWayService.cpp',
@@ -40,6 +44,10 @@ def create(target, module_name):
 	    'jus/TcpString.cpp',
 	    ])
 	my_module.add_header_file([
+	    'jus/AbstractFunction.h',
+	    'jus/AbstractFunctionTypeDirect.h',
+	    'jus/AbstractFunctionTypeClass.h',
+	    'jus/ParamType.h',
 	    'jus/debug.h',
 	    'jus/Client.h',
 	    'jus/GateWay.h',
diff --git a/test/client/appl/main.cpp b/test/client/appl/main.cpp
index 24e4de6..35193e1 100644
--- a/test/client/appl/main.cpp
+++ b/test/client/appl/main.cpp
@@ -42,13 +42,22 @@ int main(int _argc, const char *_argv[]) {
 	tmp.push_back(22);
 	tmp.push_back(333);
 	tmp.push_back(4444);
-	int32_t val = client1.call_i("getServiceCount", tmp, "soucou", false);
+	int32_t val = client1.call_i("", "getServiceCount", tmp, "coucou", false);
 	APPL_INFO("Nb services = " << val);
-	std::vector<std::string> val2 = client1.call_vs("getServiceList");
+	std::vector<std::string> val2 = client1.call_vs("", "getServiceList");
 	APPL_INFO("List services:");
 	for (auto &it: val2) {
 		APPL_INFO("    - " << it);
 	}
+	// TODO:  add return value
+	bool valConnect = client1.call_b("", "link", "serviceTest1");
+	APPL_INFO("Link service 'serviceTest1' ret=" << valConnect);
+	
+	bool retCall = client1.call_d("serviceTest1", "mul", 13.1, 2.0);
+	APPL_INFO("serviceTest1.mul = " << retCall);
+	
+	valConnect = client1.call_b("", "unlink", "serviceTest1");
+	APPL_INFO("un-Link service 'serviceTest1' ret=" << valConnect);
 	
 	int32_t iii=0;
 	while (iii < 3) {
diff --git a/test/service1/appl/main.cpp b/test/service1/appl/main.cpp
index 63638d3..a943bcb 100644
--- a/test/service1/appl/main.cpp
+++ b/test/service1/appl/main.cpp
@@ -11,15 +11,49 @@
 
 #include <etk/stdTools.h>
 namespace appl {
-	class Service1 : public jus::Service {
+	class User {
+		public:
+			User() {
+				APPL_WARNING("new USER");
+			}
+			~User() {
+				APPL_WARNING("delete USER");
+			}
+			
+	};
+	
+	class UserManager {
 		private:
-			double mul(const double& _val1) {//, const double& _val2) {
+			std::map<std::string, ememory::SharedPtr<appl::User>> m_listLoaded;
+		public:
+			UserManager() {
+				
+			}
+			ememory::SharedPtr<appl::User> getUser(const std::string& _userName) {
+				// TODO : Lock ...
+				auto it = m_listLoaded.find(_userName);
+				if (it != m_listLoaded.end()) {
+					// User already loaded:
+					return it->second;
+				}
+				// load New User:
+				ememory::SharedPtr<appl::User> tmp(new appl::User);
+				m_listLoaded.insert(std::make_pair(_userName, tmp));
+				return tmp;
+			}
+	};
+	class Calculator {
+		private:
+			ememory::SharedPtr<appl::User> m_user;
+		public:
+			double mul(double _val1) {//, const double& _val2) {
 				double _val2 = 1.0f;
 				return _val1*_val2;
 			}
 		public:
-			Service1() {
-				advertise("mul", &appl::Service1::mul, "simple multiplication to test double IO");
+			Calculator(ememory::SharedPtr<appl::User> _user) :
+			  m_user(_user) {
+				//advertise("mul", &appl::Service1::mul, "simple multiplication to test double IO");
 			}
 	};
 }
@@ -27,13 +61,15 @@ namespace appl {
 
 int main(int _argc, const char *_argv[]) {
 	etk::init(_argc, _argv);
-	appl::Service1 service1;
+	appl::UserManager userMng;
+	jus::ServiceType<appl::Calculator, appl::UserManager> serviceInterface(userMng);
+	serviceInterface.advertise("mul", &appl::Calculator::mul, "simple multiplication to test double IO");
 	for (int32_t iii=0; iii<_argc ; ++iii) {
 		std::string data = _argv[iii];
 		if (etk::start_with(data, "--ip=") == true) {
-			service1.propertyIp.set(std::string(&data[5]));
+			serviceInterface.propertyIp.set(std::string(&data[5]));
 		} else if (etk::start_with(data, "--port=") == true) {
-			service1.propertyPort.set(etk::string_to_uint16_t(std::string(&data[7])));
+			serviceInterface.propertyPort.set(etk::string_to_uint16_t(std::string(&data[7])));
 		} else if (    data == "-h"
 		            || data == "--help") {
 			APPL_PRINT(etk::getApplicationName() << " - help : ");
@@ -46,16 +82,14 @@ int main(int _argc, const char *_argv[]) {
 	APPL_INFO("==================================");
 	APPL_INFO("== JUS test service1 start      ==");
 	APPL_INFO("==================================");
-	/*
-	service1.connect();
+	serviceInterface.connect("serviceTest1");
 	int32_t iii=0;
 	while (true) {
 		usleep(500000);
-		APPL_INFO("Appl in waiting ... " << iii << "/inf");
+		APPL_INFO("service in waiting ... " << iii << "/inf");
 		iii++;
 	}
-	service1.disconnect();
-	*/
+	serviceInterface.disconnect();
 	APPL_INFO("==================================");
 	APPL_INFO("== JUS test service1 stop       ==");
 	APPL_INFO("==================================");