AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: Serverless patterns - Lambda to SQS

Resources:
  # Define the SQS topic
  MySqsQueue:
    Type: AWS::SQS::Queue

  # Define the publisher Lambda function with permissions
  QueuePublisherFunction:
    Type: AWS::Serverless::Function 
    Properties:
      CodeUri: src/
      Handler: app.handler
      Runtime: nodejs12.x
      Timeout: 3
      MemorySize: 128
      Environment:
        Variables:
          SQSqueueName: !Ref MySqsQueue
      Policies:
        ## Read more about SAM Policy templates at:
        ## https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-policy-templates.html
        - SQSSendMessagePolicy:
            QueueName: !GetAtt MySqsQueue.QueueName

Outputs:
  QueuePublisherFunction:
    Description: QueuePublisherFunction function name
    Value: !Ref QueuePublisherFunction
  
  SQSqueueName:
    Description: SQS queue name
    Value: !GetAtt MySqsQueue.QueueName

  SQSqueueARN:
    Description: SQS queue ARN
    Value: !GetAtt MySqsQueue.Arn

  SQSqueueURL:
    Description: SQS queue URL
    Value: !Ref MySqsQueue