httpApi cloudformation参考？

Question

我目前在serverless.yml上使用它来实现CORS

provider:
  httpApi:
    Ref: httpApiCustom
functions:
  login:
    name: 'login'
    events:
      - httpApi: POST /login

resources:
  Resources:
    httpApiCustom:
      Type: AWS::ApiGatewayV2::Api
      Properties:
        Name: api-name
        ProtocolType: HTTP
        CorsConfiguration:
          AllowOrigins: 
            - '*'
    httpApiCustomStage:
      Type: AWS::ApiGatewayV2::Stage
      Properties:
        ApiId:
          Ref: httpApiCustom
        StageName: ${self:provider.stage}

但是似乎它没有引用cloudformation，而是创建了2个API，一个API包含没有CORS的路由，另一个API包含了CORS但没有路由。有什么想法吗？