使用 CloudFormation 向 AWS websocket API 添加集成响应

Question

AWS recently released Cloudformation support for templating websocket API gateways。我部署了一个工作示例，但我不知道如何打开代理集成响应（有关如何在控制台中完成此操作，请参见屏幕截图）。有谁知道可以使用什么 cloudFormation 设置来打开 lambda 代理集成的默认集成响应？

Answer 1

请尝试以下步骤

1- 在 Route 中添加 RouteResponseSelectionExpression 作为 $default（目前仅支持一个）

2- 为所有路由创建 RouteResponse（双向） 注意：- RouteResponseKey: $default // 它应该只是默认的

3- 添加 ConnectIntegResponse（可选）

下面是一个经过测试的CFN sn-p，请随意使用

##########Socket API###############
  webSocket:
    Type: AWS::ApiGatewayV2::Api
    Properties:
      Name: WebSocket
      ProtocolType: WEBSOCKET
      RouteSelectionExpression: "$request.body.action"
  ConnectRoute:
    Type: AWS::ApiGatewayV2::Route
    Properties:
      ApiId: !Ref webSocket
      RouteKey: $connect
      AuthorizationType: NONE
      OperationName: ConnectRoute
      RouteResponseSelectionExpression: $default # add this 
      Target: !Join
        - '/'
        - - 'integrations'
          - !Ref ConnectInteg
  ConnectInteg:
    Type: AWS::ApiGatewayV2::Integration
    Properties:
      ApiId: !Ref webSocket
      Description: Connect Integration
      IntegrationType: AWS_PROXY
      IntegrationUri: 
        Fn::Sub:
            arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${restAndSocketLambda.Arn}/invocations

  ConnectRouteResponse: # Add this
    Type: 'AWS::ApiGatewayV2::RouteResponse'
    Properties:
      RouteId: !Ref ConnectRoute
      ApiId: !Ref webSocket
      RouteResponseKey: $default

  ConnectIntegResponse: # Add this(if required)
    Type: 'AWS::ApiGatewayV2::IntegrationResponse'
    Properties:
      IntegrationId: !Ref ConnectInteg
      IntegrationResponseKey: /201/
      ApiId: !Ref webSocket