具有自定义请求的HttpClient.GetStreamAsync()? [英] HttpClient.GetStreamAsync() with custom request?

问题描述

我的目标是使用HttpClient类进行Web请求，以便我可以将响应写入文件(解析后).因此，我需要将结果作为Stream.

My goal is to use the HttpClient class to make a web-request so that I can write the response to a file (after parsing). Therefore I need the result as a Stream.

HttpClient.GetStreamAsync()仅将字符串requestUri作为参数.因此，无法使用自定义HttpRequestHeader，自定义HttpMethod，自定义 ContentType ，自定义内容等来创建请求吗?

HttpClient.GetStreamAsync() only takes the string requestUri as parameter. So there is no possibility to create a request with custom HttpRequestHeader, custom HttpMethod, custom ContentType, custom content and so on?

我看到HttpWebRequest有时 Headers .那么我可以使用HttpClient，应该使用HttpWebRequest还是完全使用其他类/库?

I saw that HttpWebRequest is sometimes used instead, but in my PCL (Profile111) there is no Add method for the Headers. So can I use HttpClient, should I use HttpWebRequest instead or should I use another class/library at all?

推荐答案

GetStreamAsync只是构建和发送无内容的GET请求的快捷方式.做到漫长的路要走".非常简单:

GetStreamAsync is just a shortcut for building and sending a content-less GET request. Doing it the "long way" is fairly straightforward:

var request = new HttpRequestMessage(HttpMethod.???, uri);
// add Content, Headers, etc to request
request.Content = new StringContent(yourJsonString, System.Text.Encoding.UTF8, "application/json");
request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
var response = await client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead);
response.EnsureSuccessStatusCode();
var stream = await response.Content.ReadAsStreamAsync();

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