Orchestrate your Azure Functions with Durable Functions - AzureThursday Meetup
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These are the slides of the presentation I gave at the Azure Thursday Meetup on the 1st of Februari 2018 at Ordina. The source code for the demos I gave can be downloaded from this GitHub repository: https://github.com/marcduiker/demos-azure-durable-functions (see the Readme for instructions).
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Orchestrate your Azure Functions with Durable Functions - AzureThursday Meetup
- 2. Marc Duiker Lead Consultant @ Xpirit
- 3. Marc Duiker Durable Functions • What are orchestrations? • Why do we need them? • What is Durable Functions? • Local development • Examples • Function chaining • Fan-out/Fan-in • Stateful Singleton • Closing remarks
- 5. Marc Duiker Durable Functions Orchestration? Orchestration is the automated arrangement, coordination, and management of computer systems, middleware, and services.
- 14. Marc Duiker Durable Functions Durable Functions is based on
- 15. Marc Duiker Durable Functions New Trigger Bindings [OrchestrationClient] DurableOrchestrationClient
- 17. Marc Duiker Durable Functions New Trigger Bindings [OrchestrationTrigger] DurableOrchestrationContext
- 19. Marc Duiker Durable Functions New Trigger Bindings [ActivityTrigger] DurableActivityContext
- 21. Marc Duiker Durable Functions Invocations, Checkpoints & Replay Function invocation Execution history
- 22. Marc Duiker Durable Functions Orchestration Functions should be Deterministic
- 24. Marc Duiker Durable Functions Visual Studio 2017 15.5+ - “Azure development tools” workload - Extension: Azure Functions & Web Jobs Tools - Azure Storage Emulator Local development
- 27. Marc Duiker Durable Functions Function chaining
- 28. Marc Duiker Durable Functions Demo: Use case As a speaker I want to arrive early at the next meetup so I still have some time to tweak my slides at the very last moment.
- 29. Marc Duiker Durable Functions Demo: Control flow In - meetup group - departure address - travel mode Out - event name - group name - destination address - departure time - duration Returns one event For the event returned by FA1
- 31. Marc Duiker Durable Functions Fan-out/fan-in FA1 returns a collection of items FA2 is called for each of the items from FA1
- 32. Marc Duiker Durable Functions Demo: Use case As a meetup visitor I want a list of relevant events, sorted by travel duration so I can choose which events I will attend.
- 33. Marc Duiker Durable Functions Demo: Control flow In - search text - max nr of events - departure address - travel mode Out Collection of - event name - group name - destination address - departure time - duration For each event returned by FA1 Returns collection of events
- 50. Marc Duiker Durable Functions Demo Managing a list of names in a stateful singleton.
- 55. Marc Duiker Durable Functions • Orchestration Functions can only call Activity Functions in the same Function App. • Duration timers can’t last longer than 7 days. • Keep your orchestration small. • What changes together should be deployed together. Closing remarks