使用RESTSHARP

Question

使用RestSharp调用API时出现此错误：

  

基础连接已关闭：发生意外错误   发送。

我已验证我的客户ID，密码，用户名和密码是否正确。我能够在没有PowerShell问题的情况下执行此操作。

public string GetTokenForBrightIdea()
{
    RestClient restclient = new RestClient(_uri);
    RestRequest request = new RestRequest() { Method = Method.POST };

    request.AddHeader("Accept", "application/json");
    request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
    request.AddParameter("grant_type", "password");
    request.AddParameter("client_id", _clientId);
    request.AddParameter("client_secret", _clientSecret);
    request.AddParameter("username", _clientUsername);
    request.AddParameter("password", _clientPassword);

    var tResponse = restclient.Execute(request);
    var responseJson = tResponse.Content;
    return JsonConvert.DeserializeObject<Dictionary<string, object>>(
        responseJson)["access_token"].ToString();
}

使用RestSharp进行此操作时我缺少什么？

Answer 1

事实证明，因为这个调用是HTTPS我需要添加以下代码行

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;

Answer 2

对于.Net 3.5和4.0，您可以尝试在RestSharp客户端初始化之前放置以下代码：

ServicePointManager.SecurityProtocol = (SecurityProtocolType)768 | (SecurityProtocolType)3072;

Answer 3

这对我来说很好：

ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls12;