如何将 C# REST API HttpClient 用于基本 Z099FB995346F31C749F6E40C3FZ 身份验证和默认 ADF 凭据？

Question

This code results in a bad request or "A task was canceled." because it contains both type of authentication.

1. handler.UseDefaultCredentials = true;
2. AuthenticationHeaderValue("Basic", Convert.ToBase64String(authToken));

//Create the HttpClientHandler
HttpClientHandler handler = new HttpClientHandler();

//Add the AD Credentials
handler.UseDefaultCredentials = true;
if (Client == null)
{
    Client = new HttpClient(handler);

    Client.Timeout = TimeSpan.FromMinutes(0.5);

}

Client.DefaultRequestHeaders.Clear();

//Add Basic header credentials for the remote server
var authToken = Encoding.ASCII.GetBytes($"{userName}:{password}");
Client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", Convert.ToBase64String(authToken));


if (ReqHeaders.Count != 0)
{
    foreach (KeyValuePair<string, string> pair in ReqHeaders)
    {
        Client.DefaultRequestHeaders.Add(pair.Key, pair.Value);
    }
}

I need to first authenticate locally to the ESB and then to a remote server.

Answer 1

Instead of setting the Authorization header using Client.DefaultRequestHeaders.Authorization , try just setting the header directly:

Client.DefaultRequestHeaders.Add("Authorization", $"Basic {Convert.ToBase64String(authToken)}");

And are you sure the token should be in base 64 format?