从DocuSign API请求访问令牌时收到400错误的请求消息 [英] Getting 400 bad request message while requesting for access token from DocuSign API

问题描述

我可以通过使用链接 https：//developers.docusign来生成docusign网站的访问令牌.com / oauth-token-generator

但是，当尝试使用c＃代码在我们的系统中获取访问令牌时，却收到消息（远程服务器返回了错误：（400）错误的请求。）

But when try to get access token in our system using c# code then getting message (The remote server returned an error: (400) Bad Request.)

我遵循以下链接中提到的身份验证过程。

I follow the authenticate process mentioned in below link.

https://developers.docusign.com/esign-rest- api / guides / authentication / oauth2-code-grant

我能够获取验证码。我使用了此身份验证代码来访问API（ https://account-d.docusign.com/oauth / token ）。

I able to get authentication code. I used this authentication code to hit API (https://account-d.docusign.com/oauth/token).

下面是我的代码示例

string integrationKey = "key removed";
string secretKey = "key removed";
var httpWebRequest = (HttpWebRequest)WebRequest.Create("https://account-d.docusign.com/oauth/token");
httpWebRequest.ContentType = "application/x-www-form-urlencoded";
httpWebRequest.Method = "POST";
string apiStoreConsumer =    "removed";
 httpWebRequest.Headers.Add("Authorization", "Basic " + apiStoreConsumer);
 using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
  {
   string input = "authorization_code&authorization_code= <authentication code goes here>;

   streamWriter.Write(input);
   streamWriter.Flush();
   streamWriter.Close();
 }

WebResponse response = (HttpWebResponse)httpWebRequest.GetResponse();

查询：

为什么会出现400错误？
我们是否有访问令牌的到期时间，如果是，那么需要多长时间？
身份验证代码是否对每个请求都有效？

Why am I getting 400 error? Do we have any expiry time for access token, if yes then how long? Does authentication code get change for every request?

请帮助我。

谢谢！

推荐答案

我建议您在.NET / C＃中使用OAuth库
如果您想了解操作方法，请克隆此仓库。
问题是您需要首先获取代码，然后进行交换e作为令牌。如果您手动进行，则涉及两个步骤。
第一步需要您在浏览器中对用户进行身份验证，然后才能调用任何API。
在此步骤中，您需要传递集成密钥并重定向回您的URL。
重定向回后，您将收到一个代码，可以使用您讨论的API调用将其交换为访问令牌。

I recommend you use a library for OAuth in .NET/C#. If you want to see how this is done, please clone this repo. The issue is that you need to first get a code and then exchange it for a token. There are 2 steps involved if you do this manually. The first step requires you to authenticate the user in a browser before you can call any API. During that step you need to pass in your integration key and redirect back to your URL. Once redirected back you'll receive a code that can be exchanged for an access token using the API call you had talks about.

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