AWS CloudFormation Template for SQS - Lambda Event source Integration https://dev.classmethod.jp/articles/consistent-consumer-pipelining-with-eventbridge-pipes/

aws-cfn-for-sqs-lambda.yaml

Resources:
  QueueForLambda:
    Type: 'AWS::SQS::Queue'
  LambdaServiceRole:
    Type: 'AWS::IAM::Role'
    Properties:
      AssumeRolePolicyDocument:
        Statement:
          - Action: 'sts:AssumeRole'
            Effect: Allow
            Principal:
              Service: lambda.amazonaws.com
        Version: '2012-10-17'
      ManagedPolicyArns:
        - 'Fn::Join':
            - ''
            - - 'arn:'
              - Ref: 'AWS::Partition'
              - ':iam::aws:policy/service-role/AWSLambdaBasicExecutionRole'
  LambdaServiceRoleDefaultPolicy:
    Type: 'AWS::IAM::Policy'
    Properties:
      PolicyDocument:
        Statement:
          - Action:
              - 'sqs:ChangeMessageVisibility'
              - 'sqs:DeleteMessage'
              - 'sqs:GetQueueAttributes'
              - 'sqs:GetQueueUrl'
              - 'sqs:ReceiveMessage'
            Effect: Allow
            Resource:
              'Fn::GetAtt':
                - QueueForLambda
                - Arn
        Version: '2012-10-17'
      PolicyName: LambdaServiceRoleDefaultPolicy
      Roles:
        - Ref: LambdaServiceRole
  LambdaForSQS:
    Type: 'AWS::Lambda::Function'
    Properties:
      Code:
        ZipFile: |-
          def handler(event, context):
              for record in event['Records']:
                  print(record['body'])
      Handler: index.handler
      Role:
        'Fn::GetAtt':
          - LambdaServiceRole
          - Arn
      Runtime: python3.11
    DependsOn:
      - LambdaServiceRoleDefaultPolicy
      - LambdaServiceRole
  LambdaSqsEventSourceSqs:
    Type: 'AWS::Lambda::EventSourceMapping'
    Properties:
      EventSourceArn:
        'Fn::GetAtt':
          - QueueForLambda
          - Arn
      FunctionName:
        Ref: LambdaForSQS

aws-lambda-event-source.png