lambda函数和apigateway在不同的堆栈中

Question

我正在使用cloudformation制作API-GATEWAY。我面临的问题是，我想集成lambda函数在后台调用。 我已经制作了Lambda函数，并希望将其集成到我的apigateway中 有什么方法可以从CF堆栈外部导入资源？

我试图设置参数或键入lambda并以集成类型调用resourceid。

AWSTemplateFormatVersion: "2010-09-09"
Description: >
  For creating Restul api gateway,
  Background invocation in lambda

Parameters:
  apiName:
      Type: String
      Default: ApolloDevB

Resources:
  MyRestApi:
    Type: AWS::ApiGateway::RestApi
    Properties:
      Name: !Ref apiName

  Restapiresource:
    Type: 'AWS::ApiGateway::Resource'
    Properties:
      RestApiId: !Ref MyRestApi
      ParentId: !GetAtt
        - MyRestApi
        - RootResourceId
      PathPart: charges

  Restapiresource2:
    Type: 'AWS::ApiGateway::Resource'
    Properties:
      RestApiId: !Ref MyRestApi
      ParentId: !GetAtt
        - MyRestApi
        - RootResourceId
      PathPart: online-count

  Method:
    Type: AWS::ApiGateway::Method
    Properties:
      HttpMethod: POST
      ResourceId: !Ref Restapiresource
      RestApiId: !Ref MyRestApi
      AuthorizationType: NONE


  Method2:
    Type: AWS::ApiGateway::Method
    Properties:
      HttpMethod: GET
      ResourceId: !Ref Restapiresource2
      RestApiId: !Ref MyRestApi
      AuthorizationType: NONE
      Integration:
        IntegrationHttpMethod: "POST"
        Type: "AWS"
        Uri: !Sub
          - "arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${lambdaArn}/invocations"
          - lambdaArn: !GetAtt "lambdaFunction.Arn"
      ResourceId: !Ref Restapiresource2
      RestApiId: !Ref MyRestApi