serverless framework configuration

lambda order

service: restbucks-lambda-order

custom:
  tableName: '${self:provider.stage}-restbucks-order'
  snsTopic: "${self:provider.stage}-restbucks-order-topic"

provider:
  name: aws
  runtime: nodejs12.x
  stage: dev
  region: us-east-1
  environment:
    ORDER_TABLE: ${self:custom.tableName}
    AWS_DEPLOY_REGION: ${self:provider.region}
    SNS_ORDER_ARN: ${self:custom.snsTopic}

  iamRoleStatements:
    - Effect: Allow
      Action:
        - dynamodb:PutItem
      Resource:
        - { "Fn::GetAtt": ["RestbucksOrderDynamoDBTable", "Arn" ] }
    - Effect: Allow
      Action:
        - SNS:Publish
      Resource:
        - { "Fn::Join" : [":", ["arn:aws:sns:${self:provider.region}", { "Ref" : "AWS::AccountId" }, "${self:custom.snsTopic}" ] ]  }
functions:
  orderHandler:
    handler: src/orderHandler.handler
    environment:
      SNS_TOPIC_ARN: { "Fn::Join" : [":", ["arn:aws:sns:${self:provider.region}", { "Ref" : "AWS::AccountId" }, "${self:custom.snsTopic}" ] ]  }
    events:
      - http:
          path: order
          method: post
          cors: true
      - sns: ${self:provider.stage}-restbucks-order-topic

resources:
  Resources:
    RestbucksOrderDynamoDBTable:
      Type: AWS::DynamoDB::Table
      Properties:
        AttributeDefinitions:
          - AttributeName: orderId
            AttributeType: S
        KeySchema:
          - AttributeName: orderId
            KeyType: HASH
        ProvisionedThroughput:
          ReadCapacityUnits: 1
          WriteCapacityUnits: 1
        TableName: ${self:custom.tableName}