The Realtime API: In memory mode, debug tools, and more- Google Developers Blog
Apr 13, 2015

Summary
Introduced the Realtime API, a new service for building real-time applications. Highlighted its in-memory mode for low-latency data access and introduced debugging tools to aid developers in building and troubleshooting real-time applications.
More from the Realtime Feed Updates and Syndication trail
- Deliver asynchronous notifications in Google Chat using webhooks- Google Developers Blog
- Building for a more productive inbox with AMP- Google Developers Blog
- Hangouts Chat alerts & notifications... with asynchronous messages- Google Developers Blog
- New ways to keep data flowing between your apps and ours- Google Developers Blog
- Add backend logic to real-time data with Firebase and Google App Engine- Google Developers Blog