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Ray Tsang (臧瑞國)
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One of the memorable tutorials from our recent  +GDG New York  #itsHackademic   event was from Google Cloud Developer Advocate +Ray Tsang 

Why?

Because he took the basic Polymer tutorial (https://www.polymer-project.org/docs/start/tutorial/intro.html) -- which coincidentally is also the basis for the first Polytechnic codelab (http://itshackademic.com/static/codelabs/1-polymer-first-app/#1) -- and souped it up by integrating Firebase (https://www.firebase.com/) to provide persistent and reactive storage for the Polymer application.

The screenshot shows how, on the Firebase backend, any front-end update fires data updates that automagically become available (via data-binding awesomeness) to all other clients of that application. Net result = you get real-time, reactive data sync for your Polymer app.

Check out Ray's codebase at his github below, and post any firebase-enabled Polymer apps you build to the comments so we can check them out and publicize them too.
https://github.com/saturnism/polymer-firebase-demo
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