我有一个VisualStudio17无服务器应用程序项目,正在使用.net core Web API。
我想确认我的SNS订阅,但我遇到了一个问题,AWS发送的POST请求的头部content-type
设置为text/plain; charset=UTF-8
,而正文是JSON。
以下是来自documentation的示例请求:
POST / HTTP/1.1
x-amz-sns-message-type: Notification
x-amz-sns-message-id: da41e39f-ea4d-435a-b922-c6aae3915ebe
x-amz-sns-topic-arn: arn:aws:sns:us-west-2:123456789012:MyTopic
x-amz-sns-subscription-arn: arn:aws:sns:us-west-2:123456789012:MyTopic:2bcfbf39-05c3-41de-beaa-fcfcc21c8f55
Content-Length: 761
Content-Type: text/plain; charset=UTF-8
Host: ec2-50-17-44-49.compute-1.amazonaws.com
Connection: Keep-Alive
User-Agent: Amazon Simple Notification Service Agent
{
"Type" : "Notification",
"MessageId" : "da41e39f-ea4d-435a-b922-c6aae3915ebe",
"TopicArn" : "arn:aws:sns:us-west-2:123456789012:MyTopic",
"Subject" : "test",
"Message" : "test message",
"Timestamp" : "2012-04-25T21:49:25.719Z",
"SignatureVersion" : "1",
"Signature" : "EXAMPLElDMXvB8r9R83tGoNn0ecwd5UjllzsvSvbItzfaMpN2nk5HVSw7XnOn/49IkxDKz8YrlH2qJXj2iZB0Zo2O71c4qQk1fMUDi3LGpij7RCW7AW9vYYsSqIKRnFS94ilu7NFhUzLiieYr4BKHpdTmdD6c0esKEYBpabxDSc=",
"SigningCertURL" : "https://sns.us-west-2.amazonaws.com/SimpleNotificationService-f3ecfb7224c7233fe7bb5f59f96de52f.pem",
"UnsubscribeURL" : "https://sns.us-west-2.amazonaws.com/?Action=Unsubscribe&SubscriptionArn=arn:aws:sns:us-west-2:123456789012:MyTopic:2bcfbf39-05c3-41de-beaa-fcfcc21c8f55"
}
内容类型:这使得它的解析相当困难,而一个简单的public void Post([FromBody] string t) // or dynamic t for the matter
并抛出Request was short circuited at action filter 'Microsoft.AspNetCore.Mvc.ModelBinding.UnsupportedContentTypeFilter'.
异常。
我是不是错过了什么?他们为什么要这样做,我该如何处理这个?
2条答案
按热度按时间fhg3lkii1#
我通过将
text/plain
添加到JsonInputFormatter
应该格式化的格式中,使其像我在this回答中描述的那样工作。toe950272#
现在,Amazon SNS中有一个内置的解决方案,它刚刚推出了对从主题交付的HTTP消息的自定义
Content-Type
头的支持。https://aws.amazon.com/about-aws/whats-new/2023/03/amazon-sns-content-type-request-headers-http-s-notifications/您必须修改Amazon SNS订阅的
DeliveryPolicy
属性,将headerContentType
属性设置为application/json
或支持的任何其他值。您可以在此处找到支持的所有值:https://docs.aws.amazon.com/sns/latest/dg/sns-message-delivery-retries.html#creating-delivery-policy您可以通过调用
Subscribe
或SetSubscriptionAttributes
API操作来设置DeliveryPolicy
属性:或者,您也可以使用
AWS::SNS::Subscription
资源使用AWS CloudFormation来设置此策略。