Fix send method of socket client implementations

octorest/websocket.py

@@ -52,4 +52,4 @@ def send(self, data):
         Sends data, currently not working properly.
         OctoPrint server is unable to parse.
         """
-        self.socket.send(json.dumps(data))
+        self.socket.send(json.dumps([json.dumps(data)]))

octorest/xhrstreaming.py

@@ -69,5 +69,5 @@ def send(self, data):
         print("SENDING")
         url = self.url.format(protocol="https" if self.secure else "http",
                               method="xhr_send")
-        response = self.socket.post(url, data=json.dumps(data))
+        response = self.socket.post(url, data=json.dumps([json.dumps(data)]))
         return response

octorest/xhrstreaminggenerator.py

@@ -64,5 +64,5 @@ def send(self, data):
         OctoPrint server returns 404
         """
         url = '/'.join((self.url, 'xhr_send'))
-        response = self.session.post(url, data=json.dumps(data))
+        response = self.session.post(url, data=json.dumps([json.dumps(data)]))
         return response