Creates a Lambda function that stores a payload in S3 and starts an Express Workflow
This pattern creates a Lambda function that puts an object to S3, which triggers a Step Functions Express Workflow.
This is useful when processing uploaded files larger than the current task execution limits.
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Clone repo
git clone https://github.com/aws-samples/serverless-patterns/cd serverless-patterns/lambda-s3-sfnDeploy
sam deploy --guidedTesting
Run the following command to invoke the function to start the Step Functions workflow. Note: edit the {SavePayloadAndStartStateMachineFunction} placeholder with the ARN of the deployed Lambda function. This is provided in the stack outputs. Replace the payload with something larger than the current task execution limit.
aws lambda invoke --function-name {SavePayloadAndStartStateMachineFunction} --payload '{ "payload": "hello world"}' --cli-binary-format raw-in-base64-out response.jsonCleanup
1. Empty and delete the S3 bucket:
aws s3 rm s3://lambda-s3-sfn-uploads --recursive2. Delete the stack:
sam delete --stack-name STACK_NAME.3. Confirm the stack has been deleted:
aws cloudformation list-stacks --query "StackSummaries[?contains(StackName,'STACK_NAME')].StackStatus"