template.yaml

AWSTemplateFormatVersion: 2010-09-09
Transform: 'AWS::Serverless-2016-10-31'
Description: SURL - ShortURL
Globals:
  Function:
    Timeout: 25
    Environment:
      Variables:
        TABLE_NAME_LINKS: surl_links
        ROOT_REDIRECT: 'https://example.com/'
        404_REDIRECT: 'https://example.com/'
        BASE_DOMAIN: 'https://example.com/'
        CACHE_SECONDS: 300
Resources:
  LinksTable:
    Type: 'AWS::DynamoDB::Table'
    TableName: surl_links
    AttributeDefintions:
      - AttributeName: niceName
        AttributeType: S
    PrimaryKey:
      - Name: niceName
        Type: String
    KeySchema:
      - AttributeName: niceName
        KeyType: HASH
    ProvisionedThroughput:
      ReadCapacityUnits: 5
      WriteCapacityUnits: 5
    SSESpecification:
      SSEEnabled: false
    Metadata:
      'AWS::CloudFormation::Designer':
        id: 20f3d16e-6d1a-4179-9ff4-35c574c0e7ac
  RedirectFunction:
    Type: 'AWS::Serverless::Function'
    Properties:
      CodeUri: redirect/target/aws-redirect-lambda-package.zip
      Handler: 'com.blakekhan.surl.aws.redirect.App::handleRequest'
      Runtime: java11
      MemorySize: 512
      FunctionName: surl-redirect
      Description: Handles redirection of clients.
      Events:
        SurlAPI:
          Type: Api
          Properties:
            Path: '/{niceName}'
            Method: get
          RequestModel:
            Model: RedirectRequest
            Required: true
          RequestParameters:
            - method.request.path.niceName:
                Required: true
          EndpointConfiguration: EDGE
      Policies:
        - Version: 1012-10-17
          Statement:
            - Effect: Allow
              Action:
                - 'dynamodb:DeleteItem'
                - 'dynamodb:GetItem'
                - 'dynamodb:PutItem'
                - 'dynamodb:UpdateItem'
              Resource: !Join
                - ''
                - - 'arn:aws:dynamodb:'
                  - !Ref 'AWS::Region'
                  - ':'
                  - !Ref 'AWS::AccountId'
                  - ':table/surl_links'
    Metadata:
      'AWS::CloudFormation::Designer':
        id: 73563d77-2c0e-4879-8b7c-d4fa88dc3f25
    DependsOn:
      - LinksTable
  DeleteLinkFunction:
    Type: 'AWS::Serverless::Function'
    Properties:
      CodeUri: delete-link/target/aws-deletelink-lambda-package.zip
      Handler: 'com.blakekhan.surl.aws.delete.App::handleRequest'
      Runtime: java11
      MemorySize: 512
      FunctionName: surl-redirect
      Description: Handles deletion of short link.
      Events:
        SurlAPI:
          Type: Api
          Properties:
            Path: '/{niceName}'
            Method: delete
          RequestModel:
            Model: DeleteRequest
            Required: true
          RequestParameters:
            - method.request.path.niceName:
                Required: true
          EndpointConfiguration: EDGE
      Policies:
        - Version: 1012-10-17
          Statement:
            - Effect: Allow
              Action:
                - 'dynamodb:DeleteItem'
                - 'dynamodb:GetItem'
                - 'dynamodb:PutItem'
              Resource: !Join
                - ''
                - - 'arn:aws:dynamodb:'
                  - !Ref 'AWS::Region'
                  - ':'
                  - !Ref 'AWS::AccountId'
                  - ':table/surl_links'
    DependsOn:
      - LinksTable
    Metadata:
      'AWS::CloudFormation::Designer':
        id: fffc4832-172c-4816-8162-83cb25840dc6
  CreateLinkFunction:
    Type: 'AWS::Serverless::Function'
    Properties:
      CodeUri: create-link/target/aws-createlink-lambda-package.zip
      Handler: 'com.blakekhan.surl.aws.create.App::handleRequest'
      Runtime: java11
      MemorySize: 512
      FunctionName: surl-createlink
      Description: Handles creation of new short links.
      Events:
        SurlAPI:
          Type: Api
          Properties:
            Path: /create
            Method: put
          RequestParameters:
            - method.request.header.niceName:
                Required: true
            - method.request.header.destination:
                Required: true
            - method.request.header.expireAt:
                Required: false
          RequestModel:
            Model: CreateLinkRequest
            Required: true
          EndpointConfiguration: EDGE
    Policies:
      - Version: 1012-10-17
        Statement:
          - Effect: Allow
            Action:
              - 'dynamodb:DeleteItem'
              - 'dynamodb:GetItem'
              - 'dynamodb:PutItem'
              - 'dynamodb:UpdateItem'
            Resource: !Join
              - ''
              - - 'arn:aws:dynamodb:'
                - !Ref 'AWS::Region'
                - ':'
                - !Ref 'AWS::AccountId'
                - ':table/surl_links'
    Metadata:
      'AWS::CloudFormation::Designer':
        id: 591d1a78-526e-424a-a3d1-d4ce558c1389
    DependsOn:
      - LinksTable
  SurlAPI:
    Type: 'AWS::ApiGateway::Model'
    Properties:
      RestApiId: !Ref SurlAPI
      ContentType: application/json
      Description: Schema for redirect request
      Name: CreateLinkRequest
      Schema:
        $schema: 'http://json-schema.org/draft-04/schema#'
        title: CreateLinkRequest
        type: array
        items:
          type: object
          properties:
            niceName:
              type: string
            destination:
              type: string
            expireAt:
              type: string
    Metadata:
      'AWS::CloudFormation::Designer':
        id: 229057c4-ee71-425b-8507-4be7b548762e
    DependsOn:
      - RedirectFunction
      - CreateLinkFunction
      - DeleteLinkFunction
Outputs:
  RedirectFunction:
    Description: Redirect Lambda Function ARN
    Value: !GetAtt
      - RedirectFunction
      - Arn
  RedirectFunctionIamRole:
    Description: Implicit IAM Role created for Redirect function
    Value: !GetAtt
      - RedirectFunctionRole
      - Arn
  CreateLinkFunction:
    Description: CreateLink Lambda Function ARN
    Value: !GetAtt
      - CreateLinkFunction
      - Arn
  CreateLinkFunctionIamRole:
    Description: Implicit IAM Role created for CreateLink function
    Value: !GetAtt
      - CreateLinkFunctionRole
      - Arn
  DeleteLinkFunction:
    Description: DeleteLink Lambda Function ARN
    Value: !GetAtt
      - DeleteLinkFunction
      - Arn
  DeleteLinkFunctionIamRole:
    Description: Implicit IAM Role created for DeleteLink function
    Value: !GetAtt
      - DeleteLinkFunctionRole
      - Arn
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