Aws-cdk: Support the new "Parameters" option of AWS Step Functions

[guisrx]

AWS Step Functions released support for Parameters option in the input definition.

CDK should be able to define this attribute:

    const initalTask = new stepfunctions.Task(this, "InitialTask", {
      resource: asyncLambda,
      parameters: {
        "task.$": "$.task"
      }
      inputPath: "$",
      outputPath: "$.state"
    }).next(nextTask);

[rix0rrr]

In the mean time, I hope you are aware you can use CloudFormation overrides to work around the lack of support for now.

[guisrx]

I could not use the CloudFormation overrides because what I need is a property (on TaskProps) that will end up as a JSON object. I got it to work for now with this:

    interface ParameterizedTaskProps extends sf.TaskProps {
      parameters: any;
    }

    class ParameterizedTask extends sf.Task {
      private parameterizedProps: ParameterizedTaskProps;

      constructor(parentConstruct: cdk.Construct, id: string, parameterizedProps: ParameterizedTaskProps) {
        super(parentConstruct, id, parameterizedProps);
        this.parameterizedProps = parameterizedProps;
      }

      public toStateJson(): object {
        const stateJson = {
          ...super.toStateJson(),
          Parameters: this.parameterizedProps.parameters
        };
        return stateJson;
      }
    }

[rix0rrr]

You are right, of course. Sorry!

[fabio-vitali]

commit d0c52832ec4df8e49f9ddef4bc8b8032019b54df has removed this... can this issue be reopened?

[davidleeshanok]

I'm unable to set Parameters on Step Functions tasks in CDK v1.3.

Can this issue be reopened?