AWS Cloudformation - 属性验证失败：[属性值 {/RequestParameters/MessageAttributes} 与类型 {String} 不匹配]答案

【问题标题】：AWS Cloudformation - Property validation failure: [Value of property {/RequestParameters/MessageAttributes} does not match type {String}]AWS Cloudformation - 属性验证失败：[属性值 {/RequestParameters/MessageAttributes} 与类型 {String} 不匹配]
【发布时间】：2021-12-06 14:22:27
【问题描述】：

我一直在试图了解如何克服这个错误：

Property validation failure: [Value of property {/RequestParameters/MessageAttributes} does not match type {String}]

有问题的云形成资源是这样的：

 HttpApiPayloadRouteIntegration:
    Type: AWS::ApiGatewayV2::Integration
    Properties:
      ApiId: !Ref HttpApi
      Description: Proxy incoming HTTP Payload into SQS
      IntegrationType: AWS_PROXY
      IntegrationSubtype: SQS-SendMessage
      PayloadFormatVersion: "1.0"
      CredentialsArn: !GetAtt HttpApiRole.Arn
      RequestParameters:
        QueueUrl: !Ref HTTPApiEventQueue
        MessageBody: $request.body
        MessageGroupId: $request.body.repository.full_name
        MessageDeduplicationId:
          !Join [
            "-",
            [$request.body.repository.full_name, $request.body.alert.number],
          ]
        MessageAttributes:
          - firstAttribute:
              DataType: String
              StringValue: hello world
          - secondAttribute:
              DataType: String
              StringValue: goodbye world

错误发生在这里：

        MessageAttributes:
          - firstAttribute:
              DataType: String
              StringValue: hello world
          - secondAttribute:
              DataType: String
              StringValue: goodbye world

我试过了：

        MessageAttributes:
          firstAttribute:
              DataType: String
              StringValue: hello world
          secondAttribute:
              DataType: String
              StringValue: goodbye world

        MessageAttributes:
          - firstAttribute:
              DataType: String
              StringValue: hello world
          - secondAttribute:
              DataType: String
              StringValue: goodbye world

        MessageAttributes:
          firstAttribute:
              Name: firstAttribute
              Type: String
              Value: hello world
          secondAttribute:
              Name: secondAttribute
              Type: String
              Value: goodbye world

我的问题是真的。如何在 yaml 云形成模板中发送 MessageAttributes？

【问题讨论】：

标签： amazon-web-services yaml amazon-cloudformation amazon-sqs amazon-api-gateway

【解决方案1】：

AWS 文档 here 说在 YAML 模板中属性 RequestParameters 被解析为 JSON。

这里是一个 YAML 模板示例：

MyIntegration:
Type: AWS::ApiGatewayV2::Integration
Properties:
  ApiId: !Ref MyApi
  Description: HTTP proxy integration
  IntegrationType: HTTP_PROXY
  IntegrationMethod: ANY
  IntegrationUri: https://api.example.com
  PayloadFormatVersion: 1.0
  RequestParameters:
    "append:header.header1": "$context.requestId"
  ResponseParameters:
    "200":
      ResponseParameters:
        - Source: "headerValue"
          Destination: "append:header.header2"

CLI 示例：

aws apigatewayv2 create-integration \
    --api-id abcdef123 \
    --integration-subtype SQS-SendMessage \
    --integration-type AWS_PROXY \
    --payload-format-version 1.0 \
    --credentials-arn arn:aws:iam::123456789012:role/apigateway-sqs \
    --request-parameters '{"QueueUrl": "$request.header.queueUrl", "MessageBody": "$request.body.message"}'

看起来Request Parameters一直都是以JSON格式映射的

【讨论】：