Calling SNS when AWS Step Function fails

Question

I have implemented a state machine using AWS Step Functions which includes calling some Lambda functions, Spinning EMR cluster, Adding steps to EMR and Terminating EMR cluster. I want to call SNS Topic whenever any of above state fails.

Answer 1

You can create a cloudwatch event to capture the stepfunction failure or time out events and add SNS as the target for this rule.

to create a cloudwatch rule navigate to cloudwatch -> events -> rules -> create

this rule can be restricted to a specific stepfunction or a specific execution providing the corresponding ARN