Streaming api with generic and durable streaming
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When you need to send a pushed notification, the Streaming API is the way to do it. In Spring 16, Generic Streaming channels now have the ability to replay events from the previous 24 hours. In Summer 16 this will be added to PushTopics. In this talk I go over the basics of the Streaming API and discuss and show some of the features of Durable Streaming.
![Sending Messages to Streaming Channel
POST:
/sobjects/StreamingChannel/0M624000000001TCAQ/push
{"pushEvents" : [
{"payload" : "This is my message”}
]
}](https://image.slidesharecdn.com/streamingapiwithgenericanddurablestreaming-160505213634/85/Streaming-api-with-generic-and-durable-streaming-12-320.jpg)
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Streaming api with generic and durable streaming
- 1. Durable Generic Streaming API Replay events and messages 5 May, 2016 Thames Valley User Group
- 2. Looking-Forward Statement Statement under the Private Securities Litigation Reform Act of 1995: This presentation may contain forward-looking statements that involve risks, uncertainties, and assumptions. If any such uncertainties materialize or if any of the assumptions proves incorrect, the results of salesforce.com, inc. could differ materially from the results expressed or implied by the forward-looking statements we make. All statements other than statements of historical fact could be deemed forward-looking, including any projections of product or service availability, subscriber growth, earnings, revenues, or other financial items and any statements regarding strategies or plans of management for future operations, statements of belief, any statements concerning new, planned, or upgraded services or technology developments and customer contracts or use of our services. The risks and uncertainties referred to above include – but are not limited to – risks associated with developing and delivering new functionality for our service, new products and services, our new business model, our past operating losses, possible fluctuations in our operating results and rate of growth, interruptions or delays in our Web hosting, breach of our security measures, the outcome of any litigation, risks associated with completed and any possible mergers and acquisitions, the immature market in which we operate, our relatively limited operating history, our ability to expand, retain, and motivate our employees and manage our growth, new releases of our service and successful customer deployment, our limited history reselling non-salesforce.com products, and utilization and selling to larger enterprise customers. Further information on potential factors that could affect the financial results of salesforce.com, inc. is included in our annual report on Form 10-K for the most recent fiscal year and in our quarterly report on Form 10-Q for the most recent fiscal quarter. These documents and others containing important disclosures are available on the SEC Filings section of the Investor Information section of our Web site. Any unreleased services or features referenced in this or other presentations, press releases or public statements are not currently available and may not be delivered on time or at all. Customers who purchase our services should make the purchase decisions based upon features that are currently available. Salesforce.com, inc. assumes no obligation and does not intend to update these forward-looking statements.
- 3. Speakers Peter Chittum Manager, Developer Evangelism EMEA @pchittum
- 4. Go Social! @salesforcedevs / #AskForce @salesforceadmns / #AwesomeAdmin Salesforce Developers Salesforce Admins Salesforce Developers Salesforce Developers ButtonClick Admins
- 6. • API Based Notification • Avoid Polling for Updates • Save Standard API Limits • Uses Long Polling (Bayeux, CometD) Streaming API
- 7. PushTopic: Data Changes StreamingChannel: Generic Notif.
- 8. • Event: A record has been changed (CRUD) • Notification: Message sent because event has occurred • PushTopic: The definition of one event type Terms
- 9. Create PushTopic PushTopic pushTopic = new PushTopic(); pushTopic.Name = 'InvoiceStatementUpdates'; pushTopic.Query = 'SELECT Id, Name, Status__c, Description__c FROM Invoice_Statement__c'; pushTopic.ApiVersion = 36.0; pushTopic.NotifyForOperationUpdate = true; pushTopic.NotifyForFields = ’Select'; insert pushTopic;
- 11. Client Channel/Topic Connection Subscribe to Topic/Channel Register Streaming Client Update or Event from Salesforce
- 12. Sending Messages to Streaming Channel POST: /sobjects/StreamingChannel/0M624000000001TCAQ/push {"pushEvents" : [ {"payload" : "This is my message”} ] }
- 13. • Replay Generic Streaming Events (GA) - Salesforce stores for 24hrs - Subscribers choose events to retrieve with replay options Durable Generic Streaming API
- 14. Before the Demo Play along… http://bit.ly/sf-durable
- 15. API Demo
- 16. • Replay PushTopic Streaming Events (Beta) - identical to generic streaming with replay for 24hrs - subscription channel should include PushTopic “channel”:“/topic/MyTopicName” Contact Salesforce to enable this Pilot Replaying Push Topics (GA Summer 16)
- 17. • When subscribing filter down the notifications /topic/myChannel?Industry='Energy'&ShippingCity='San Francisco' Filter Subscriptions (GA Summer 16)
- 18. • Durable Streaming API (replay messages) • SOQL Enhancements • JSON support for Bulk API • REST API - Friendly URLs - Make REST requests with fewer API calls - Access records by traversing object relationships to retrieve, update, or delete the record • Wave REST API has gone GA Other API Enhancements
- 20. Trailhead and Release Readiness bit.ly/sf-release-trail
- 21. Join the Conversation!post to: bit.ly/ReleaseReadinessSalesforce with #askforce
- 22. Q&A
- 23. Thank you!