Parallel state should allow Catch property

[mrgrain]

Given a Parallel state

{
  "States": {
    "A": {
      "Type": "Parallel",
      "Branches": [
        {
          "StartAt": "B",
          "States": {
            "B": {
              "Type": "Fail"
            }
          }
        },
        {
          "StartAt": "C",
          "States": {
            "C": {
              "Type": "Pass",
              "End": true
            }
          }
        }
      ],
      "Catch": {
        "ErrorEquals": [
          "States.ALL"
        ],
        "Next": "D"
      }
    },
    "D": {
      "Type": "Fail"
    }
  }
}

It should allow the Catch property: http://docs.aws.amazon.com/step-functions/latest/dg/amazon-states-language-parallel-state.html?shortFooter=true

However it fails.

Version 1.0.2

[ChristopheBougere]

Hi @mrgrain,
You are right, it is missing the Catch property in Parallel.
However, in your example:

• It is missing the StartAt property of the state machine, which makes it fail at first
• You must provide either Nextor End in your Parallel state
• Catch property must be an array, as defined here

Which results in this:

{
  "StartAt": "A",
  "States": {
    "A": {
      "Type": "Parallel",
      "Next": "D",
      "Branches": [{
          "StartAt": "B",
          "States": {
            "B": {
              "Type": "Fail"
            }
          }
        },
        {
          "StartAt": "C",
          "States": {
            "C": {
              "Type": "Pass",
              "End": true
            }
          }
        }
      ],
      "Catch": [{
        "ErrorEquals": [
          "States.ALL"
        ],
        "Next": "D"
      }]
    },
    "D": {
      "Type": "Fail"
    }
  }
}

Fixed in 1.0.3. Feel free to reopen if needed

[mrgrain]

Thanks, in the example I was trying to simplify my state machine - obviously not with much success.