title: File transfers by using MQTT
body: <p>I'm developing a C++ application that will be able to communicate with a remote server, I'd like to use MQTT because it's reliable and easy to implement. I'll also need to make file transfers and I wonder if it is possible to do this with MQTT.</p>
  
  <p>If so, is it possible to get the download progress status and the download speed?</p>
  
  <p>I searched on Google and it seems to be possible but I didn't get very clear answers.</p>
  
  <p>I thank you</p>