diff --git a/include/telebotxx/BotApi.hpp b/include/telebotxx/BotApi.hpp
index 300b29f..57cfc47 100644
--- a/include/telebotxx/BotApi.hpp
+++ b/include/telebotxx/BotApi.hpp
@@ -2,6 +2,7 @@
 #define TELEBOTXX_BOTAPI_H
 
 #include <string>
+#include <memory>
 
 namespace telebotxx
 {
@@ -11,6 +12,8 @@ namespace telebotxx
 		/// \param [in] token bot's secret token
 		BotApi(const std::string& token);
 
+		~BotApi();
+
 		/// \brief Send text message
 		/// \param [in] chat chat identifier
 		/// \param [in] text message text
@@ -24,8 +27,8 @@ namespace telebotxx
 
 
 	private:
-		std::string token_;
-		std::string telegramMainUrl_;
+		class Impl;
+		std::unique_ptr<Impl> impl_;
 	};
 }
 
diff --git a/src/BotApi.cpp b/src/BotApi.cpp
index 9b7e76e..c4608e1 100644
--- a/src/BotApi.cpp
+++ b/src/BotApi.cpp
@@ -10,79 +10,103 @@
 
 using namespace telebotxx;
 
-BotApi::BotApi(const std::string& token)
-	: token_(token)
+class BotApi::Impl
 {
-	telegramMainUrl_ = "https://api.telegram.org/bot" + token_;
+public:
+	Impl(const std::string& token)
+		: token_(token)
+	{
+		telegramMainUrl_ = "https://api.telegram.org/bot" + token_;
 
-	/// \todo run getMe command to check token
+		/// \todo run getMe command to check token
+	}
+
+	void sendMessage(const std::string& chat, const std::string& text)
+	{
+		// Construct JSON body and istream
+		using namespace rapidjson;
+		StringBuffer s;
+		Writer<StringBuffer> writer(s);
+
+		writer.StartObject();
+		writer.String("chat_id");
+		writer.String(chat.c_str());
+		writer.String("text");
+		writer.String(text.c_str());
+		writer.EndObject();
+
+		std::istringstream myStream(s.GetString());
+		std::cout << myStream.str() << std::endl;
+		auto size = myStream.str().size();
+
+		// Construct HTTP request
+		curlpp::Easy request;
+		std::list<std::string> headers;
+
+		// Content-Type
+		headers.push_back("Content-Type: application/json");
+
+		// Content-Length
+		std::ostringstream ss;
+		ss << "Content-Length: " << size;
+		headers.push_back(ss.str());
+
+		// Set options
+		request.setOpt(new curlpp::Options::Url(telegramMainUrl_ + "/sendMessage"));
+		request.setOpt(new curlpp::Options::Verbose(true));
+		request.setOpt(new curlpp::Options::ReadStream(&myStream));
+		request.setOpt(new curlpp::Options::InfileSize(size));
+		request.setOpt(new curlpp::options::HttpHeader(headers));
+		request.setOpt(new curlpp::Options::Post(true));
+
+		// Perform request
+		request.perform();
+	}
+
+	void sendPhoto(const std::string& chat, const std::istream& file, const std::string& caption)
+	{
+		// Construct HTTP request
+		curlpp::Easy request;
+		std::list<std::string> headers;
+
+		{
+			// Forms takes ownership of pointers!
+			curlpp::Forms formParts;
+			formParts.push_back(new curlpp::FormParts::Content("chat_id", chat));
+			formParts.push_back(new curlpp::FormParts::Content("photo", "value2"));
+
+			request.setOpt(new curlpp::options::HttpPost(formParts));
+		}
+
+		// Set options
+		request.setOpt(new curlpp::Options::Url(telegramMainUrl_ + "/sendPhoto"));
+		request.setOpt(new curlpp::Options::Verbose(true));
+		request.setOpt(new curlpp::options::HttpHeader(headers));
+		request.setOpt(new curlpp::Options::Post(true));
+
+		// Perform request
+		request.perform();
+	}
+
+
+private:
+	std::string token_;
+	std::string telegramMainUrl_;
+};
+
+BotApi::BotApi(const std::string& token)
+	: impl_(std::make_unique<Impl>(token))
+{
 }
 
-void BotApi::sendMessage(const std::string &chat, const std::string &text)
+BotApi::~BotApi() = default;
+
+void BotApi::sendMessage(const std::string& chat, const std::string& text)
 {
-	// Construct JSON body and istream
-	using namespace rapidjson;
-	StringBuffer s;
-	Writer<StringBuffer> writer(s);
-
-	writer.StartObject();
-	writer.String("chat_id");
-	writer.String(chat.c_str());
-	writer.String("text");
-	writer.String(text.c_str());
-	writer.EndObject();
-
-	std::istringstream myStream(s.GetString());
-	std::cout << myStream.str() << std::endl;
-	auto size = myStream.str().size();
-
-	// Construct HTTP request
-	curlpp::Easy request;
-	std::list<std::string> headers;
-
-	// Content-Type
-	headers.push_back("Content-Type: application/json");
-
-	// Content-Length
-	std::ostringstream ss;
-	ss << "Content-Length: " << size;
-	headers.push_back(ss.str());
-
-	// Set options
-	request.setOpt(new curlpp::Options::Url(telegramMainUrl_ + "/sendMessage"));
-	request.setOpt(new curlpp::Options::Verbose(true));
-	request.setOpt(new curlpp::Options::ReadStream(&myStream));
-	request.setOpt(new curlpp::Options::InfileSize(size));
-	request.setOpt(new curlpp::options::HttpHeader(headers));
-	request.setOpt(new curlpp::Options::Post(true));
-
-	// Perform request
-	request.perform();
+	return impl_->sendMessage(chat, text);
 }
 
 void BotApi::sendPhoto(const std::string& chat, const std::istream& file, const std::string& caption)
 {
-	// Construct HTTP request
-	curlpp::Easy request;
-	std::list<std::string> headers;
-
-	{
-		// Forms takes ownership of pointers!
-		curlpp::Forms formParts;
-		formParts.push_back(new curlpp::FormParts::Content("chat_id", chat));
-		formParts.push_back(new curlpp::FormParts::Content("photo", "value2"));
-
-		request.setOpt(new curlpp::options::HttpPost(formParts));
-	}
-
-	// Set options
-	request.setOpt(new curlpp::Options::Url(telegramMainUrl_ + "/sendPhoto"));
-	request.setOpt(new curlpp::Options::Verbose(true));
-	request.setOpt(new curlpp::options::HttpHeader(headers));
-	request.setOpt(new curlpp::Options::Post(true));
-
-	// Perform request
-	request.perform();
+	return impl_->sendPhoto(chat, file, caption);
 }
-
-