使用RESTSHARP时API返回错误 [英] API is returning error when using RESTSHARP

问题描述

使用RestSharp调用API时，出现此错误:

When use RestSharp to call an API I get this error:

基础连接已关闭:发生意外错误 发送.

The underlying connection was closed: An unexpected error occurred on a send.

我已验证我的客户ID，机密，用户名和密码正确无误.我能够做到这一点而在PowerShell中没有问题.

I've verified that my client ID, secret, username, and password are correct. I'm able to do this without issues in PowerShell.

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进行这项工作时，我缺少什么?

What am I missing when using RestSharp to make this work?

推荐答案

因此事实证明，由于此调用是HTTPS，因此我需要添加以下代码行

So it turns out that because this call was HTTPS i needed to add the following line of code

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

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