Building a Messaging Framework on the Salesforce1 Platform
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This presentation describes an architecture to make asynchronous outbound webservice callouts using the Message Queue design pattern
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- 1. Building a Messaging Framework on the Salesforce1 Platform Anup Jadhav Manager of Mobility / Technical Architect @anup
- 2. Anup Jadhav Manager of Mobility / Technical Architect @anup
- 3. OVERVIEW
- 4. OVERVIEW Describe an architecture to make Asynchronous Outbound Webservice Callouts using a native custom built message queue
- 5. OVERVIEW Describe an architecture to make Asynchronous Outbound Webservice Callouts using a native custom built message queue
- 6. OVERVIEW Describe an architecture to make Asynchronous Outbound Webservice Callouts using a native custom built message queue
- 7. OVERVIEW Describe an architecture to make Asynchronous Outbound Webservice Callouts using a native custom built message queue
- 8. OVERVIEW Describe an architecture to make Asynchronous Outbound Webservice Callouts using a native custom built message queue
- 9. OVERVIEW Message Queue Pattern
- 10. OVERVIEW Message Queue Pattern
- 11. OVERVIEW Message Queue Pattern
- 12. OVERVIEW Message Queue Pattern
- 13. REQUIREMENTS
- 14. REQUIREMENTS • Automated Retry Capability • Allow SF Admin to Re-Submit Failed Request • Ability to view Webservice Request/Response Payload content • Ability to proactively alert Sys Admins if large no of Webservice Callouts are failing • Turn off particular type of Interface on-demand • Define Operation Hours • Metrics – response time, no.of failures, message volume per day etc
- 15. ARCHITECTURE
- 16. ARCHITECTURE Using a middleware (MQ system not ETL) • Complex to implement • Expensive • In-House skillset
- 17. ARCHITECTURE Outbound Messaging • Supports single sObjects only • Enforce interface contract that the receiver should adhere to • Remote listener (end point) would need to handle request in an idempotent fashion • Can only be used with Workflow rules • You cannot build an audit trail using OM
- 18. ARCHITECTURE Bespoke solution Build something native on Force.com platform that Can retry webservice callouts Allows manual re-submission of callouts Stores request and response payload Alerts sys admins if an interface is down Provides analytics around webservice callouts
- 19. ARCHITECTURE
- 21. ARCHITECTURE Message Queue Used to hold web service messages Each message can be retried automatically/manually Messages contain service handler information Contains Request and Response payload content
- 22. ARCHITECTURE Batch Job Apex batch class : responsible for processing messages from Message Queue Can process one message at a time Invokes the Service Handler
- 23. ARCHITECTURE Scheduler Acts like a Batch Job manager Is responsible for scheduling batch jobs in a round robin fashion
- 24. ARCHITECTURE Service Handler Does the actual Webservice callout Updates the message and also updates other sObjects if required
- 25. ARCHITECTURE Webservice Log Log webservice requests and response in this table Can be used in reports/dashboards Determine num of success, failures, average response time
- 26. LIMITATIONS
- 27. LIMITATIONS Complex to implement Only supports asynchronous webservice callouts Be wary of callout, batch job and scheduler limitations Does not guarantee order or sequence of callouts Testing can be tricky
- 28. Demo
- 29. Questions
- 31. Join us for Pre Gala Drinks: cloudsherpas.com/df14 UK Happy Hour Tuesday 14th October 5pm - 7pm 540 Howard Street, San Fran, CA, 94105 Grab your FREE Entry Postcard here!