在客户端标题C＃中设置基本身份验证

Question

我正在尝试在我的代码中设置基本身份验证标头

using (var client = new HttpClient())
{
    string username = "6B562D6XXXXAC1A58E5E474B2107FFDAA66EBE94";
    string password = "FF8AFB9XXXX331CD0DF0A0C38D6ACD8502224764";

    var uri = "https://xxxxxxx/token";

    string svcCredentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(username + ":" + password));

    client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", svcCredentials);

}

这将引发以下异常

我尝试了一些没有运气的变化

任何帮助解决的问题，将不胜感激

System.FormatException：'值'承载令牌System.Runtime.CompilerServices.AsyncTaskMethodBuilder1+AsyncStateMachineBox1 [System.String，System.Runtime.CompilerServices.IAsyncStateMachine]的格式无效。'

Answer 1

尝试使用此功能TryAddWithoutValidation：

类似：

client.DefaultRequestHeaders.TryAddWithoutValidation("Authorization", svcCredentials);