Resources:
  MyApi:
    Type: AWS::Serverless::HttpApi
    Properties:
      DefinitionBody:
        info:
          version: '1.0'
          title:
            Ref: AWS::StackName
        paths:
          /basic:
            post:
              x-amazon-apigateway-integration:
                httpMethod: POST
                type: aws_proxy
                uri:
                  Fn::Sub: arn:${AWS::Partition}:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${DifferentFunction.Arn}/invocations
                payloadFormatVersion: '1.0'
              security: []
              responses: {}
        openapi: 3.0.1
      DefinitionUri: s3://bucket/key