Paypal 移动支付验证在 .Net 错误 java.lang.NullPointerException 中失败

Question

我需要验证使用移动设备完成的贝宝付款，但它总是返回 java.lang.NullPointerException 错误

C#代码

// Get a reference to the config
var config = ConfigManager.Instance.GetProperties();

// Use OAuthTokenCredential to request an access token from PayPal
var accessToken = new OAuthTokenCredential(config).GetAccessToken();

var apiContext = new APIContext(accessToken);

var PayID = "PAY-6PU626847B294848Y6KEWXHY";

var payment = Payment.Get(apiContext, PayID);

远程服务器返回错误：(404) Not Found.

Answer 1

我得到了解决方案，标题信息丢失了

var apiContext = new APIContext(accessToken);
        if (apiContext.HTTPHeaders == null)
        {
            apiContext.HTTPHeaders = new Dictionary<string, string>();
            apiContext.HTTPHeaders.Add("Content-Type", "application/json");
            apiContext.HTTPHeaders.Add("Authorization", accessToken);
        }

谢谢