AWS Step function sample with a lambda invocation

workflow.json

{
  "Comment": "Workflow example with lambda invocation",
  "StartAt": "Fibonacci generator",
  "States": {
    "Fibonacci generator": {
      "Type": "Task",
      "Resource": "arn:aws:states:::lambda:invoke",
      "OutputPath": "$.Payload",
      "Parameters": {
        "Payload.$": "$",
        "FunctionName": "arn:aws:lambda:~~:~~:function:~~:$LATEST"
      },
      "Retry": [
        {
          "ErrorEquals": [
            "Lambda.ServiceException",
            "Lambda.AWSLambdaException",
            "Lambda.SdkClientException"
          ],
          "IntervalSeconds": 2,
          "MaxAttempts": 6,
          "BackoffRate": 2
        }
      ],
      "Next": "Mapper"
    },
    "Mapper": {
      "Type": "Map",
      "End": true,
      "Iterator": {
        "StartAt": "Adder",
        "States": {
          "Adder": {
            "Type": "Pass",
            "End": true,
            "Parameters": {
              "added.$": "States.MathAdd($, 7)"
            }
          }
        }
      }
    }
  }
}