A guide to design and develop a multi-tenant, secure and real time solution

https://www.airpair.com/firebase/posts/yatodo-guide

You can integrate with iron.io service for it.
Use this guide https://www.airpair.com/firebase/posts/yatodo-guide on how-to
http://dev.iron.io/worker/scheduling/

• https://groups.google.com/forum/#!topic/firebase-talk/qD6aORJwl_4
• https://www.airpair.com/firebase/posts/yatodo-guide