Implement a callback pattern within your workflow
A single workflow orchestrates a producitonline from start to completion, at various “milestones”, an event is emitted onto a serverless event bus (Event Bridge). The events are produced using the putEvents.waitForTaskToken. This allows the workflow to pause until receiving a resume command with the corresponding task token. Adding a `heartbeat` value to the putEvents task acts as a graceful timeout fallback.
< Back to all workflows
Clone repo
git clone https://github.com/aws-samples/step-functions-workflows-collection/tree/main/emit-and-wait/cd step-functions-workflows-collection/emit-and-wait/
Deploy
sam deploy --guided
Testing
See the GitHub repo for detailed testing instructions.
Cleanup
1. Delete the stack:
sam delete --stack-name STACK_NAME.2. Confirm the stack has been deleted:
aws cloudformation list-stacks --query "StackSummaries[?contains(StackName,'STACK_NAME')].StackStatus"Additional resources
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