serverless.yml

service: example-api

plugins:
  - serverless-webpack

custom:
  webpack:
    webpackConfig: ./webpack.config.js
    includeModules:
      forceExclude:
        - aws-sdk

provider:
  name: aws
  runtime: nodejs8.10
  memorySize: 128
  versionFunctions: false
  environment:
    USERS_TABLE: users
    POSTS_TABLE: posts
    NEO4J_URI:
      Fn::Join:
        - ""
        - - "bolt://"
          - Fn::GetAtt: [ GraphDatabaseInstance, PublicIp ]
          - ":7687"
    NEO4J_USERNAME: neo4j
    NEO4J_PASSWORD:
      Ref: GraphDatabaseInstance
  iamRoleStatements:
    - Effect: Allow
      Action:
        - dynamodb:*
      Resource:
        - "*"

functions:
  addUser:
    handler: src/handlers/addUser.default
    events:
      - http:
          path: /users
          method: post
  getUsers:
    handler: src/handlers/getUsers.default
    events:
      - http:
          path: /users
          method: get
  addPost:
    handler: src/handlers/addPost.default
    events:
      - http:
          path: /posts
          method: post
  getPosts:
    handler: src/handlers/getPosts.default
    events:
      - http:
          path: /posts
          method: get
  load:
    handler: src/handlers/load.default
    events:
      - stream:
          type: dynamodb
          arn:
            Fn::GetAtt: [ UsersTable, StreamArn ]
      - stream:
          type: dynamodb
          arn:
            Fn::GetAtt: [ PostsTable, StreamArn ]

resources:
  Resources:
    UsersTable:
      Type: AWS::DynamoDB::Table
      Properties:
        TableName: ${self:provider.environment.USERS_TABLE}
        AttributeDefinitions:
          - AttributeName: id
            AttributeType: S
        KeySchema:
          - AttributeName: id
            KeyType: HASH
        ProvisionedThroughput:
          ReadCapacityUnits: 1
          WriteCapacityUnits: 1
        StreamSpecification:
          StreamViewType: NEW_IMAGE

    PostsTable:
      Type: AWS::DynamoDB::Table
      Properties:
        TableName: ${self:provider.environment.POSTS_TABLE}
        AttributeDefinitions:
          - AttributeName: id
            AttributeType: S
        KeySchema:
          - AttributeName: id
            KeyType: HASH
        ProvisionedThroughput:
          ReadCapacityUnits: 1
          WriteCapacityUnits: 1
        StreamSpecification:
          StreamViewType: NEW_IMAGE

    GraphDatabaseSecurityGroup:
      Type: AWS::EC2::SecurityGroup
      Properties:
        GroupDescription: Database server
        GroupName: GraphDatabase
        SecurityGroupIngress:
          -
            IpProtocol: tcp
            FromPort: 7473
            ToPort: 7473
            CidrIp: 0.0.0.0/0
          -
            IpProtocol: tcp
            FromPort: 7474
            ToPort: 7474
            CidrIp: 0.0.0.0/0
          -
            IpProtocol: tcp
            FromPort: 7687
            ToPort: 7687
            CidrIp: 0.0.0.0/0

    GraphDatabaseInstance:
      Type: AWS::EC2::Instance
      Properties:
        InstanceType: t2.micro
        ImageId: ami-0aeebc5d17c06beff
        SecurityGroupIds:
          - Ref: GraphDatabaseSecurityGroup

  Outputs:
    GraphDatabaseUrl:
      Value:
        Fn::Join:
          - ""
          - - "https://"
            - Fn::GetAtt: [ GraphDatabaseInstance, PublicIp ]
            - ":7473/"
    GraphDatabaseUsername:
      Value: ${self:provider.environment.NEO4J_USERNAME}
    GraphDatabasePassword:
      Value: ${self:provider.environment.NEO4J_PASSWORD}