如何使用aysnc转换HTTP的Web请求的异步请求，并等待 [英] How to convert http Web Request to asynchronous requests using aysnc and await

问题描述

我有登录用户的简单的请求的功能。我刚刚了解aysnc方法（我是C＃初学者），并看到了请求可以使用异步进行，并等待。但我有一个很难搞清楚如何转换现有的code。我读<一个href=\"http://stackoverflow.com/questions/14577346/converting-ordinary-http-post-web-request-with-async-and-await\">similar问题计算器上，但仍然没有能够使之与我的code工作。

I have a simple request function that logs a user in. I just learned about aysnc method (I am a C# beginner) and saw that requests can be made using async and await. But I am having a hard time figuring out how to convert my existing code. I read similar questions on stackoverflow but still haven't been able to make it work with my code.

public static string LogIn(string email, string password)
{
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://localhost");
    request.Method = "POST"
    request.ContentType = "application/json";
    request.CookieContainer = cookies;
    CredentialClass credentials = new CredentialClass();
    credentials.email = email
    credentials.password = password;
    var ser = new DataContractJsonSerializer(typeof(CredentialClass));
    ser.WriteObject(request.GetRequestStream(), credentials);
    var response = (HttpWebResponse)request.GetResponse();
    return (response.StatusCode.ToString());
}

任何建议我将如何使它工作？

Any suggestions on how would I make it work?

推荐答案

绝对最简单的方法就是更换的HttpWebRequest 与的HttpClient 。

The absolute easiest way is to replace HttpWebRequest with HttpClient.

您还需要使用异步方法签名：

You'll also want to use an asynchronous method signature:

public static async Task<string> LogInAsync(string email, string password)

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