Description: Microservices and APIs that support the 'Shop-by-Style' blog prototype
Parameters:
  Subnet1:
    Description: Valid Subnet
    Type: 'AWS::EC2::Subnet::Id'
    ConstraintDescription: Must be the name of an existing Subnet in same region.
  Subnet2:
    Description: Valid Subnet
    Type: 'AWS::EC2::Subnet::Id'
    ConstraintDescription: Must be the name of an existing Subnet in same region.
  Subnet3:
    Description: Valid Subnet
    Type: 'AWS::EC2::Subnet::Id'
    ConstraintDescription: Must be the name of an existing Subnet in same region.
  NeptuneDBClusterEndpoint:
    Description: Neptune DB Cluster Endpoint
    Type: String
  NeptuneDBClusterPort:
    Description: Neptune DB Cluster Port
    Type: String
  NeptuneSG:
    Description: Neptune Security Group
    Type: String
Resources:
  LambdaExecutionRole:
    Type: 'AWS::IAM::Role'
    Properties:
      ManagedPolicyArns:
        - 'arn:aws:iam::aws:policy/service-role/AWSLambdaVPCAccessExecutionRole'
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Action:
              - 'sts:AssumeRole'
            Effect: Allow
            Principal:
              Service:
                - lambda.amazonaws.com
  SimilaritySearchLambdaMicroservicePermissionTest:
    Type: 'AWS::Lambda::Permission'
    Properties:
      Action: 'lambda:invokeFunction'
      Principal: apigateway.amazonaws.com
      FunctionName: !Ref SimilaritySearch
      SourceArn: !Sub 
        - >-
          arn:aws:execute-api:${AWS::Region}:${AWS::AccountId}:${__ApiId__}/${__Stage__}/*/catalog
        - __Stage__: '*'
          __ApiId__: !Ref ServerlessRestApi
  ServerlessRestApiProdStage:
    Type: 'AWS::ApiGateway::Stage'
    DependsOn: [ServerlessRestApiDeploymentef8584eec9,ServerlessRestApi]
    Properties:
      DeploymentId: !Ref ServerlessRestApiDeploymentef8584eec9
      RestApiId: !Ref ServerlessRestApi
      CacheClusterEnabled: 'true'
      CacheClusterSize: '1.6'
      MethodSettings: 
        - ResourcePath: "/*"
          HttpMethod: '*'
          CacheTtlInSeconds: 3600
          CachingEnabled: 'true'
      StageName: Prod
  SimilaritySearchPermission:
    Type: 'AWS::Lambda::Permission'
    Properties:
      Action: 'lambda:InvokeFunction'
      Principal: apigateway.amazonaws.com
      FunctionName: !GetAtt 
        - SimilaritySearch
        - Arn
      SourceArn: !Sub 'arn:aws:execute-api:${AWS::Region}:${AWS::AccountId}:*/*/*/*'
  ServerlessRestApiDeploymentef8584eec9:
    Type: 'AWS::ApiGateway::Deployment'
    Properties:
      RestApiId: !Ref ServerlessRestApi
      Description: 'RestApi deployment id: ef8584eec937e78720d42b5535c1f3865bfdedb3'
      StageDescription:
        CacheTtlInSeconds: 3600
        CacheClusterEnabled: 'true'
        CacheClusterSize: '1.6'
        TracingEnabled: 'true'
      StageName: Stage
  SimilaritySearch:
    Type: 'AWS::Lambda::Function'
    Properties:
      Code:
        S3Bucket: aws-ml-blog-usw2
        S3Key: artifacts/shop-by-style/cloudformation/38810787021a45f9f9d5abd4767f86eb
      Description: ''
      VpcConfig:
        SubnetIds:
          - !Ref Subnet1
          - !Ref Subnet2
          - !Ref Subnet3
        SecurityGroupIds:
          - !Ref NeptuneSG
      Tags:
        - Value: SAM
          Key: 'lambda:createdBy'
      MemorySize: 128
      Environment:
        Variables:
          DB_ENDPOINT: !Ref NeptuneDBClusterEndpoint
          DBPORT: !Ref NeptuneDBClusterPort
      Handler: SimilaritySearch/index.handler
      Role: !GetAtt 
        - LambdaExecutionRole
        - Arn
      Timeout: 60
      Runtime: nodejs10.x
  ServerlessRestApi:
    Type: 'AWS::ApiGateway::RestApi'
    DependsOn: 
      - SimilaritySearch
    Properties:
      Body:
        info:
          version: '1.0'
          title: !Ref 'AWS::StackName'
        paths:
          /catalog:
            x-amazon-apigateway-any-method:
              parameters:
              - name: "n"
                in: "query"
                required: false
                type: "string"
              - name: "img"
                in: "query"
                required: false
                type: "string"
              responses: {}
              x-amazon-apigateway-integration:
                uri: !Sub >-
                          arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${SimilaritySearch.Arn}/invocations
                passthroughBehavior: "when_no_match"
                httpMethod: "POST"
                cacheKeyParameters:
                - "method.request.querystring.img"
                - "method.request.querystring.n"
                type: "aws_proxy"  
        swagger: '2.0'
  SimilaritySearchLambdaMicroservicePermissionProd:
    Type: 'AWS::Lambda::Permission'
    Properties:
      Action: 'lambda:invokeFunction'
      Principal: apigateway.amazonaws.com
      FunctionName: !Ref SimilaritySearch
      SourceArn: !Sub 
        - >-
          arn:aws:execute-api:${AWS::Region}:${AWS::AccountId}:${__ApiId__}/${__Stage__}/*/catalog
        - __Stage__: Prod
          __ApiId__: !Ref ServerlessRestApi
Outputs:
  ServerlessRestApiInvokeURL:
    Value: !Sub "${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com"
    Export:
      Name: ServerlessRestApiInvokeURL