template.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  Idempotency demo

Globals:
  Function:
    Timeout: 20
    Runtime: java11
    MemorySize: 512
    Tracing: Active
    Environment:
      Variables:
        POWERTOOLS_LOG_LEVEL: INFO
        POWERTOOLS_LOGGER_SAMPLE_RATE: 0.1
        POWERTOOLS_LOGGER_LOG_EVENT: true

Resources:
  IdempotencyTable:
    Type: AWS::DynamoDB::Table
    Properties:
      AttributeDefinitions:
        - AttributeName: id
          AttributeType: S
      KeySchema:
        - AttributeName: id
          KeyType: HASH
      TimeToLiveSpecification:
        AttributeName: expiration
        Enabled: true
      BillingMode: PAY_PER_REQUEST

  IdempotencyFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: .
      Handler: helloworld.App::handleRequest
      Policies:
        - DynamoDBCrudPolicy:
            TableName: !Ref IdempotencyTable
      Environment:
        Variables:
          POWERTOOLS_SERVICE_NAME: idempotency
          IDEMPOTENCY_TABLE: !Ref IdempotencyTable
      Events:
        HelloWorld:
          Type: Api
          Properties:
            Path: /helloidem
            Method: post

Outputs:
  HelloWorldApi:
    Description: "API Gateway endpoint URL for Prod stage for Idempotent function"
    Value: !Sub "https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/helloidem/"
  HelloWorldFunction:
    Description: "Idempotent Lambda Function ARN"
    Value: !GetAtt IdempotencyFunction.Arn