serverless.yml

service: email

provider:
  name: aws
  runtime: nodejs12.x
  stage: ${opt:stage, 'prod'}
  timeout: 15
  region: eu-west-1
  vpc:
    securityGroupIds:
      - ${ssm:/API/SecurityGroup}
    subnetIds:
      - ${ssm:/API/Subnet}
  iamRoleStatements:
    - Effect: 'Allow'
      Action:
        - 'sns:Publish'
      Resource:
        - ${ssm:/email/SNS/arn}
    - Effect: Allow
      Action:
        - dynamodb:*
      Resource:
        - ${ssm:/dynamodb/conversations/arn}
        - ${ssm:/dynamodb/connections/arn}
        - ${ssm:/dynamodb/email_msg_replies/arn}

functions:
  email:
    handler: src/handler.email
    events:
      - sns:
          arn: ${ssm:/email/SNS/arn}
          maximumRetryAttempts: 0
    environment:
      stage: ${self:provider.stage}
      AWS_KEY_ID: ${ssm:/email/AwsKeyId}
      AWS_KEY_SECRET: ${ssm:/email/AwsKeySecret~true}
      SENDGRID_KEY: ${ssm:/email/SendGridKey~true}
      DB_HOST: ${ssm:/DB/Host}
      DB_PROXY_HOST: ${ssm:/DB/Proxy/Host}
      DB_PORT: ${ssm:/DB/Port}
      DB_NAME: ${ssm:/DB/Name}
      DB_USER: ${ssm:/email/DB/User}
      DB_PASSWORD: ${ssm:/email/DB/Password~true}
      BUCKET_URL: ${ssm:/API/ProfilePictures/BucketUrl}
  inbound:
    handler: src/inbound.inbound
    events:
      - http:
          path: /inbound
          method: post
    environment:
      EMAIL_SECRET: ${ssm:/email/secret~true}
      API_URL: ${ssm:/email/API/endpoint}

stepFunctions:
  stateMachines:
    bufferThreadMsg:
      name: MsgBufferStateMachine
      definition:
        StartAt: Buffer
        States:
          Buffer:
            Type: Wait
            Seconds: 240
            Next: Send
          Send:
            Type: Task
            Resource: arn:aws:states:::sns:publish
            Parameters:
              TopicArn: ${ssm:/email/SNS/arn}
              Message:
                action: SEND_EMAIL
                template: THREAD_MSGS
                user.$: $.user
                channel.$: $.channel
            End: true

plugins:
  - serverless-webpack
  - serverless-offline
  - serverless-offline-sns
  - serverless-step-functions

custom:
  serverless-offline:
    httpPort: 4000
    noPrependStageInUrl: true
  webpack:
    webpackConfig: 'webpack.config.js'
    packager: 'npm'
    includeModules: true
  serverless-offline-sns:
    port: 4002
    debug: false