在自定义 HttpClientHandler 中设置 allowautoredirect=false

Posted 2023-04-13

【中文标题】在自定义 HttpClientHandler 中设置 allowautoredirect=false

【英文标题】：set allowautoredirect= false in custom HttpClientHandler

【发布时间】：2020-07-03 17:56:03

【问题描述】：

我有像下面这样的自定义 HttpClientHandler

public class CustomHttpClientHandler : HttpClientHandler

    protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
    
        var bytes = Encoding.ASCII.GetBytes(await request.Content.ReadAsStringAsync());

        request.Headers.Add("RequestSignature", Convert.ToBase64String(bytes));

        return await base.SendAsync(request, cancellationToken);
    

我想在这个 CustomHttpClientHandler 中设置allowautoredirect= false，我该怎么做才能应用到所有请求？

我是这样使用它的：

var client = new HttpClient(new CustomHttpClientHandler());

https://docs.microsoft.com/en-us/dotnet/api/system.net.http.httpclienthandler.allowautoredirect?view=netframework-4.8

【参考方案1】：

你可以在构造函数中设置AllowAutoRedirect property，像这样

public class CustomHttpClientHandler : HttpClientHandler

    public CustomHttpClientHandler() : base() 
      // setup props
      AllowAutoRedirect = true;
    

    protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) 
      // your stuff