serverless.yml

service: serverless-react-demo

provider:
  name: aws
  runtime: nodejs6.10
  region: eu-west-1
  memorySize: 256
  timeout: 30
  environment:
    SERVERLESS_STAGE: ${opt:stage, self:provider.stage}
    SERVERLESS_PROJECT: ${self:service}
    SERVERLESS_REGION: ${opt:region, self:provider.region}

package:
  exclude:
    - tests/**
    - coverage
    - build/static/**

functions:
  webapp:
    handler: handler.webapp
    warmup: true
    events:
      - http:
          path: /
          method: get
      - http:
          path: /{proxy+}
          method: get

  api:
    handler: handler.request
    warmup: true
    events:
      - http:
          path: /api/{proxy+}
          method: get

  static:
    handler: handler.staticFile
    events:
      - http:
          path: /public/{proxy+}
          method: get

plugins:
  - serverless-webpack
  - serverless-offline
  - serverless-plugin-warmup


custom:
  webpack: ./webpack/webpack.sls.config.js

resources:
  Resources:
    StaticBucket:
      Type: AWS::S3::Bucket
      Properties:
        BucketName: ${self:service}-assets
        AccessControl: PublicRead
        WebsiteConfiguration:
          IndexDocument: index.html
        LifecycleConfiguration:
          Rules:
            - Id: S3ExpireMonthly
              ExpirationInDays: 30
              Status: Enabled
        CorsConfiguration:
          CorsRules:
            - AllowedMethods:
                - 'GET'
              AllowedOrigins: ['*']
              AllowedHeaders: ['*']
    APIRole:
      Type: AWS::IAM::Role
      Properties:
        Policies:
          - PolicyName: 'ServiceWorkerAPI'
            PolicyDocument:
              Statement:
                - Effect: 'Allow'
                  Action:
                    - 's3:GetObject'
                  Resource:
                    - Fn::Join:
                      - ''
                      - - 'arn:aws:s3:::'
                        - Ref: StaticBucket
                        - '/static-low-cache/sw.js'
        AssumeRolePolicyDocument:
          Statement:
          - Effect: Allow
            Principal:
              Service:
                - apigateway.amazonaws.com
            Action:
              - sts:AssumeRole
    ServiceWorkerAPI:
      Type: AWS::ApiGateway::Resource
      Properties:
        ParentId:
          Fn::GetAtt: [ ApiGatewayRestApi, 'RootResourceId' ]
        PathPart: 'sw.js'
        RestApiId:
          Ref: ApiGatewayRestApi
    ServiceWorkerMethod:
      Type: 'AWS::ApiGateway::Method'
      Properties:
        AuthorizationType: 'NONE'
        HttpMethod: 'GET'
        MethodResponses:
          - StatusCode: 200
            ResponseParameters:
              method.response.header.Content-Type: true
        Integration:
          IntegrationResponses:
            - StatusCode: 200
              ResponseParameters:
                method.response.header.Content-Type: integration.response.header.Content-Type
          Type: 'AWS'
          IntegrationHttpMethod: 'GET'
          Credentials:
            Fn::GetAtt: [ APIRole, 'Arn' ]
          Uri:
            Fn::Join:
              - ''
              - - 'arn:aws:apigateway:'
                - Ref: AWS::Region
                - ':s3:path/'
                - Ref: StaticBucket
                - '/static-low-cache/sw.js'
        ResourceId:
          Ref: ServiceWorkerAPI
        RestApiId:
          Ref: ApiGatewayRestApi