How to use credentials in HttpClient in c#?

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I had the exact same problem myself. It seems the HttpClient just disregards the credentials set in the HttpClientHandler.

The following shall work however:

using System.Net.Http.Headers; // For AuthenticationHeaderValue

const string uri = "https://example.com/path?params=1";
using (var client = new HttpClient()) {
    var byteArray = Encoding.ASCII.GetBytes("MyUSER:MyPASS");
    var header = new AuthenticationHeaderValue(
               "Basic", Convert.ToBase64String(byteArray));
    client.DefaultRequestHeaders.Authorization = header;

    var result = await client.GetStringAsync(uri);
}

No need for the handler.

Source: http://www.snip2code.com/Snippet/13895/Simple-C—NET-4-5-HTTPClient-Request-Us

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