title: How to keep Firebase in sync with mysql database
body: <p>We need to keep our Firebase data in sync with other databases.
  if i hav updated data in mysql db it should be refected in firebase</p>
  
  <p>This needs to be as close to real-time as possible, we can't just export a nightly dump of the Firebase JSON or anything like that, aside from the fact that this will get rather large.</p>