serverless.yml

service: serverless-ruby-sqs-dynamodb

frameworkVersion: '2'

provider:
  name: aws
  runtime: ruby2.7
  memorySize: 256
  lambdaHashingVersion: 20201221
  iam:
    role:
      statements:
        - Effect: Allow
          Action:
            - dynamodb:PutItem
          Resource:
            - !GetAtt Table.Arn

constructs:
    lotteryQueue:
        type: queue
        worker:
            handler: src/handlers/lottery/worker.run
            environment:
              TABLE_NAME: ${self:custom.tableName}
        alarm: ${self:custom.alertEmail}
        batchSize: 5
        
functions:
  createLotteryCoupon:
    handler: src/handlers/lottery/handler.run
    events:
      - http:
          method: post
          path: lottery
    environment:
        QUEUE_URL: ${construct:lotteryQueue.queueUrl}

plugins:
  - serverless-ruby-layer
  - serverless-lift

custom:
  tableName: ${self:service}-${sls:stage}
  rubyLayer:
    include_functions:
      - createLotteryCoupon
      - lotteryQueueWorker
  alertEmail: mail@example.com

resources:
  Resources:
    Table:
      Type: AWS::DynamoDB::Table
      Properties:
        TableName: ${self:custom.tableName}
        Tags:
          - Key: Application
            Value: ${self:service}
          - Key: Stage
            Value: ${sls:stage}
        BillingMode: PAY_PER_REQUEST
        AttributeDefinitions:
          - AttributeName: id
            AttributeType: S
        KeySchema:
          - AttributeName: id
            KeyType: HASH