AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: 'backend

  Sample SAM Template for backend

  '
Parameters:
  BucketName:
    Type: String
  DomainName:
    Type: String
  ElasticSearchURL:
    Type: String
  SagemakerEndpoint:
    Type: String
Globals:
  Function:
    Timeout: 60
    MemorySize: 512
  Api:
    Cors:
      AllowMethods: '''*'''
      AllowHeaders: '''*'''
      AllowOrigin: '''*'''
Resources:
  PostGetSimilarTextFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: s3://aws-ml-blog/artifacts/nlu-search/lambda.zip
      Handler: app.lambda_handler
      Runtime: python3.7
      Environment:
        Variables:
          ES_ENDPOINT:
            Ref: ElasticSearchURL
          SM_ENDPOINT:
            Ref: SagemakerEndpoint
      Policies:
      - Version: '2012-10-17'
        Statement:
        - Sid: AllowSagemakerInvokeEndpoint
          Effect: Allow
          Action:
          - sagemaker:InvokeEndpoint
          Resource:
          - Fn::Sub: arn:aws:sagemaker:${AWS::Region}:${AWS::AccountId}:endpoint/${SagemakerEndpoint}
      - Version: '2012-10-17'
        Statement:
        - Sid: AllowESS
          Effect: Allow
          Action:
          - es:*
          Resource:
          - Fn::Sub: arn:aws:es:${AWS::Region}:${AWS::AccountId}:domain/${DomainName}/*
      - S3ReadPolicy:
          BucketName:
            Ref: BucketName
      Events:
        PostText:
          Type: Api
          Properties:
            Path: /postText
            Method: post
        PostMatch:
          Type: Api
          Properties:
            Method: post
            Path: /postMatch
Outputs:
  TextSimilarityApi:
    Description: API Gateway endpoint URL for Prod stage for GetSimilarText function
    Value:
      Fn::Sub: https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/
  PostGetSimilarTextFunctionArn:
    Description: GetSimilarText Lambda Function ARN
    Value:
      Fn::GetAtt:
      - PostGetSimilarTextFunction
      - Arn
  PostGetSimilarTextLambdaIamRole:
    Description: Implicit IAM Role created for GetSimilarText function
    Value:
      Fn::GetAtt:
      - PostGetSimilarTextFunction
      - Arn