Understanding the Streaming API

1. Understanding the Streaming API Quick start guide to RealTime Force /add_address @gwestr Greg Wester @add_address in/add_address

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3. Agenda • Introducing RealTime Force • Sample application • Code walk through • Q&A

4. Streaming 101 • An API that delivers near real time notifications • Uses industry standard technique – “comet” • Does not count against REST/SOAP API daily limit • Available right now for all Salesforce customers

5. Streaming Surface Area • Notification generated on SObject create or update • One change in the system will notify many users • respects existing CRUD, FLS, sharing rules • Opt in to notifications by creating a SOQL query • administrators create queries for organization

6. Streaming Terminology • Long polling • Event • Notification • Push Topic • Bayeux Protocol • handshake • subscribe • connect • unsubscribe • disconnect

7. Streams of JSON

8. Getting Started • Start with a VisualForce Page • Add a JavascriptCometD client • Asynchronously wait for events • Update the page through the DOM

9. Demo

10. Code: Apex Page

11. Code: CometD JS Client init

12. Code: CometD JS handler

13. Q&A • Documentation –http://tinyurl.com/cometsfdc • Code – http://github.com/gwestersfdc/StreamingLab • Streaming Lab on AppExchange soon

14. Thank you! • Follow me on Twitter - @gwestr