diff --git a/minihttp.cpp b/minihttp.cpp
index 12d247c..94d1a2b 100644
--- a/minihttp.cpp
+++ b/minihttp.cpp
@@ -790,6 +790,8 @@ static void strToLower(std::string& s)
 
 POST& POST::add(const char *key, const char *value)
 {
+	if(json)
+		data.clear();
     if(!empty())
         data += '&';
     URLEncode(key, data);
@@ -798,6 +800,13 @@ POST& POST::add(const char *key, const char *value)
     return *this;
 }
 
+POST & POST::setJsonData(const char * value)
+{
+	data = value;
+	json = true;
+	return *this;
+}
+
 
 HttpSocket::HttpSocket()
 : TcpSocket(),
@@ -926,7 +935,10 @@ bool HttpSocket::SendRequest(Request& req, bool enqueue)
     if(post)
     {
         r << "Content-Length: " << req.post.length() << crlf;
-        r << "Content-Type: application/x-www-form-urlencoded" << crlf;
+		if(req.post.isJson())
+			r << "Content-Type: application/json" << crlf;
+		else
+			r << "Content-Type: application/x-www-form-urlencoded" << crlf;
     }
 
     if(req.extraGetHeaders.length())
@@ -938,7 +950,7 @@ bool HttpSocket::SendRequest(Request& req, bool enqueue)
 
     r << crlf; // header terminator
 
-    // FIXME: appending this to the 'header' field is probably not a good idea
+	//Add data to POST
     if(post)
         r << req.post.str();
 
diff --git a/minihttp.h b/minihttp.h
index 7bfa035..028ec2f 100644
--- a/minihttp.h
+++ b/minihttp.h
@@ -141,13 +141,16 @@ class POST
 {
 public:
     void reserve(size_t res) { data.reserve(res); }
-    POST& add(const char *key, const char *value);
+	POST& add(const char *key, const char *value);
+	POST& setJsonData(const char *value);
     const char *c_str() const { return data.c_str(); }
     const std::string& str() const { return data; }
     bool empty() const { return data.empty(); }
     size_t length() const { return data.length(); }
+	bool isJson() const { return json; }
 private:
     std::string data;
+	bool json = false;
 };
 
 struct Request