Express Sentiment Analysis

{
  "Comment": "Express workflow for rapid sentiment and tone scoring of short text via Amazon Bedrock.",
  "StartAt": "AnalyseSentiment",
  "States": {
    "AnalyseSentiment": {
      "Type": "Task",
      "Resource": "arn:aws:states:::bedrock:invokeModel",
      "Parameters": {
        "ModelId": "us.amazon.nova-lite-v1:0",
        "Body": {
          "messages": [
            {
              "role": "user",
              "content": [
                {
                  "text.$": "States.Format('Analyse the sentiment of this text. Return JSON with: sentiment (POSITIVE|NEUTRAL|NEGATIVE), score (number -1 to 1), tone (array of strings e.g. [\"formal\",\"urgent\"]), confidence (number 0-1).\n\nText: {}', $.text)"
                }
              ]
            }
          ],
          "inferenceConfig": {
            "maxTokens": 256
          }
        }
      },
      "ResultSelector": {
        "rawResponse.$": "$.Body.output.message.content[0].text"
      },
      "ResultPath": "$.sentimentResult",
      "Retry": [
        {
          "ErrorEquals": [
            "States.ALL"
          ],
          "IntervalSeconds": 2,
          "MaxAttempts": 2,
          "BackoffRate": 1.5
        }
      ],
      "Catch": [
        {
          "ErrorEquals": [
            "States.ALL"
          ],
          "Next": "SentimentFailed"
        }
      ],
      "Next": "RouteByResult"
    },
    "RouteByResult": {
      "Type": "Choice",
      "Choices": [
        {
          "Variable": "$.sentimentResult.rawResponse",
          "IsPresent": true,
          "Next": "SentimentComplete"
        }
      ],
      "Default": "SentimentFailed"
    },
    "SentimentComplete": {
      "Type": "Succeed"
    },
    "SentimentFailed": {
      "Type": "Fail",
      "Error": "SentimentAnalysisFailed",
      "Cause": "Bedrock sentiment analysis encountered an error."
    }
  }
}

{
  "Comment": "Express workflow for rapid sentiment and tone scoring of short text via Amazon Bedrock.",
  "StartAt": "AnalyseSentiment",
  "States": {
    "AnalyseSentiment": {
      "Type": "Task",
      "Resource": "arn:aws:states:::bedrock:invokeModel",
      "Parameters": {
        "ModelId": "us.amazon.nova-lite-v1:0",
        "Body": {
          "messages": [
            {
              "role": "user",
              "content": [
                {
                  "text.$": "States.Format('Analyse the sentiment of this text. Return JSON with: sentiment (POSITIVE|NEUTRAL|NEGATIVE), score (number -1 to 1), tone (array of strings e.g. [\"formal\",\"urgent\"]), confidence (number 0-1).\n\nText: {}', $.text)"
                }
              ]
            }
          ],
          "inferenceConfig": {
            "maxTokens": 256
          }
        }
      },
      "ResultSelector": {
        "rawResponse.$": "$.Body.output.message.content[0].text"
      },
      "ResultPath": "$.sentimentResult",
      "Retry": [
        {
          "ErrorEquals": [
            "States.ALL"
          ],
          "IntervalSeconds": 2,
          "MaxAttempts": 2,
          "BackoffRate": 1.5
        }
      ],
      "Catch": [
        {
          "ErrorEquals": [
            "States.ALL"
          ],
          "Next": "SentimentFailed"
        }
      ],
      "Next": "RouteByResult"
    },
    "RouteByResult": {
      "Type": "Choice",
      "Choices": [
        {
          "Variable": "$.sentimentResult.rawResponse",
          "IsPresent": true,
          "Next": "SentimentComplete"
        }
      ],
      "Default": "SentimentFailed"
    },
    "SentimentComplete": {
      "Type": "Succeed"
    },
    "SentimentFailed": {
      "Type": "Fail",
      "Error": "SentimentAnalysisFailed",
      "Cause": "Bedrock sentiment analysis encountered an error."
    }
  }
}