Azure 函数 Return 已弃用 API Header

Question

我有一个位于代理后面的 Azure Functions。如果返回的 objects 发生更新，我们希望在一段时间后弃用该函数。我正在尝试使用提供的内容 in this solution.

创建一个来自 HTTP Header 的预期内容的响应

Warning: 299 - "Deprecated API"

我尝试像这样附加 Azure 函数：

 [FunctionName("MyAPI")]
    public static async Task<HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Function,
        "post", Route = null)]
        HttpRequestMessage req,
        TraceWriter log)
    {            
        object response = await someService.Get();
        if (settingsService.IsDeprecated)
        {
            var httpresponse = req.CreateResponse(HttpStatusCode.OK, response, "application/json");
            httpresponse.Content.Headers.Add("Warning", "299 - Deprecated API");
            return httpresponse;
        }
        return req.CreateResponse(HttpStatusCode.OK, response, "application/json");
    }

我得到异常

Exception while executing function: MyAPI -> Misused header name. Make sure request headers are used with HttpRequestMessage, response headers with HttpResponseMessage, and content headers with HttpContent objects.

如何在我的 API Http 响应中附加 "Deprecated" status warning？

Answer 1

将您的线路改为

httpresponse.Headers.Add("Warning", "299 - \"Deprecated API\"");

这里的引号似乎对遵守格式要求很重要。

Azure 函数 Return 已弃用 API Header

Azure Function Return Deprecated API Header

c#

httpresponse

azure

azure-functions