aws-step-function-parallel.json

{
  "StartAt": "transcribe",
  "States": {
    "transcribe": {
      "Type": "Task",
      "Resource": "arn:aws:states:::lambda:invoke",
      "Parameters": {
        "FunctionName": "arn:aws:lambda:us-east-1:544788468928:function:lab-transcribe-wrapper:$LATEST",
        "Payload": {
          "Input.$": "$"
        }
      },
      "Next": "transcribe-wait"
    },
    "transcribe-wait": {
      "Type": "Wait",
      "Seconds": 2,
      "Next": "transcribe-status"
    },
    "transcribe-status": {
      "Type": "Task",
      "Resource": "arn:aws:states:::lambda:invoke",
      "Parameters": {
        "FunctionName": "arn:aws:lambda:us-east-1:544788468928:function:lab-transcribe-status-checker:$LATEST",
        "Payload": {
          "Input.$": "$"
        }
      },
      "Next": "transcribe-complete"
    },
    "transcribe-complete": {
      "Type": "Choice",
      "Choices": [
        {
          "Variable": "$.Payload.TranscriptionJobStatus",
          "StringEquals": "COMPLETED",
          "Next": "process-transcript"
        },
        {
          "Variable": "$.Payload.TranscriptionJobStatus",
          "StringEquals": "FAILED",
          "Next": "error"
        }
      ],
      "Default": "transcribe-wait"
    },
    "process-transcript": {
      "Type": "Parallel",
      "Branches": [
        {
          "StartAt": "comprehend",
          "States": {
            "comprehend": {
              "Type": "Task",
              "Resource": "arn:aws:states:::lambda:invoke",
              "Parameters": {
                "FunctionName": "arn:aws:lambda:us-east-1:544788468928:function:lab-comprehend-wrapper:$LATEST",
                "Payload": {
                  "Input.$": "$"
                }
              },
              "End": true
            }
          }
        },
        {
          "StartAt": "translate",
          "States": {
            "translate": {
              "Type": "Task",
              "Resource": "arn:aws:states:::lambda:invoke",
              "Parameters": {
                "FunctionName": "arn:aws:lambda:us-east-1:544788468928:function:lab-translate-wrapper:$LATEST",
                "Payload": {
                  "Input.$": "$"
                }
              },
              "End": true
            }
          }
        }
      ],
      "Next": "polly"
    },
    "polly": {
      "Type": "Task",
      "Resource": "arn:aws:states:::lambda:invoke",
      "Parameters": {
        "FunctionName": "arn:aws:lambda:us-east-1:544788468928:function:lab-polly-wrapper:$LATEST",
        "Payload": {
          "Input.$": "$"
        }
      },
      "End": true
    },
    "error": {
      "Type": "Pass",
      "End": true
    }
  }
}