s3にputしたオブジェクトを言語検出→感情分析して結果をSNS通知するワークフローを実装するStepFunctionsのASL定義

asl.json

{
  "Comment": "A Hello World example of the Amazon States Language using Pass states",
  "StartAt": "DetectLanguageJob",
  "States": {
    "DetectLanguageJob": {
      "Type": "Task",
      "Resource": "arn:aws:states:::lambda:invoke",
      "Parameters": {
        "FunctionName": "arn:aws:lambda:ap-northeast-1:012345678901:function:InvokeDetectLanguageFunctionName:$LATEST",
        "Payload": {
          "Input.$": "$"
        }
      },
      "Next": "DetectSentimentJob"
    },
    "DetectSentimentJob": {
      "Type": "Task",
      "Resource": "arn:aws:states:::lambda:invoke",
      "Parameters": {
        "FunctionName": "arn:aws:lambda:ap-northeast-1:012345678901:function:InvokeDetectSentimentFunctionName:$LATEST",
        "Payload": {
          "Input.$": "$"
        }
      },
      "Next": "SnsNotification"
    },
    "SnsNotification": {
      "Type": "Task",
      "Resource": "arn:aws:states:::sns:publish",
      "Parameters": {
        "Message": {
          "Input.$": "$"
        },
        "TopicArn": "arn:aws:sns:ap-northeast-1:012345678901:topicName"
      },
      "End": true
    }
  }
}