add try except for sending move request

api/index.js

@@ -53,6 +53,7 @@ app.get("/image", function (req, res) {
   var request = JSON.stringify({
     command: 5
   });
+  console.log("sending picture request")
   ws.send(request);
   while (received_picture == false) { }
   res.status(200).send(last_image);

api/views/index.ejs

@@ -135,6 +135,7 @@
             const img = req.response;
             document.getElementById("picture").src = "data:image/png;base64," + img;
         }
+        console.log("sending picture request")
         xhr.send();
     }
 

src/api_communication/api_communication/api_listener.py

@@ -137,6 +137,7 @@ class ApiListener(Node):
         self.get_logger().info(f'Calling move position service with request: {str(self.move_position_request)}')
 
 
+        try:
             self.future = self.move_position_client.call_async(self.move_position_request)
             rclpy.spin_until_future_complete(self, self.future)
             result = self.future.result()
@@ -149,6 +150,9 @@ class ApiListener(Node):
                 self.get_logger().error('Move position service call failed')
                 message_result['success'] = False
             self.message_queue.append(json.dumps(message_result))
+        except Exception as e:
+            self.get_logger().error('Something went wrong while sending a move position request!\n' + str(e))
+
 
 
     def consume_message(self, message):