Resources:
  MyApiWithoutAuth:
    Type: AWS::Serverless::Api
    Properties:
      StageName: Prod

  MyFunctionWithApiKeyRequired:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: s3://bucket/key
      Handler: index.handler
      Runtime: nodejs12.x
      Events:
        MyApiWithApiKeyRequired:
          Type: Api
          Properties:
            RestApiId: !Ref MyApiWithoutAuth
            Path: /ApiKeyRequiredTrue
            Method: get
            Auth:
              ApiKeyRequired: true
        MyApiWithApiKeyRequiredAnyMethod:
          Type: Api
          Properties:
            RestApiId: !Ref MyApiWithoutAuth
            Path: /any/ApiKeyRequiredTrue
            Method: any
            Auth:
              ApiKeyRequired: true