How to use Basic Auth with HttpClient?

Question

Hi All,

How to use Basic Auth with HttpClient?

I use snippet codes below, but keeps getting 401, what I have missed?

                var authenticationString = $"{userName}:{userPassword}";
                var base64String = Convert.ToBase64String(
                   System.Text.Encoding.ASCII.GetBytes(authenticationString));

                _httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", base64String);

                await _httpClient.GetAsync(url);