C# 向ebay API发送JSON请求

好的，所以我在将这些JSON请求传递到Ebay API时遇到了一些麻烦

以下是json请求：

string jsonInventoryRequest = "{" +
                    "\"requests\": [";

        int commaCount = 1;
        foreach (var ep in productsToProcess)
        {
            jsonInventoryRequest += "{\"offers\": [{" +
                "\"availableQuantity\":" + ep.EbayProductStockQuantity + "," +
                "\"offerId\":\"" + ep.EbayID.ToString() + "\"," +
                "\"price\": {" +
                    "\"currency\": \"AUD\"," +
                    "\"value\":\"" + ep.EbayProductPrice.ToString() + "\"" +
                "}" +
            "}],";

            jsonInventoryRequest += "\"shipToLocationAvailability\": " + "{" +
                "\"quantity\":" + ep.EbayProductStockQuantity +
                "},";

            jsonInventoryRequest += "\"sku\": " + ep.EbayProductSKU.ToString() + "}";
            if (commaCount < productsToProcess.Count())
                jsonInventoryRequest += ",";

            commaCount++;
            sendEbayApiRequest = true;
        }

        jsonInventoryRequest += 
            "]" +
        "}";

以下是C#中发送请求的代码：

var ebayAppIdSetting = _settingService.GetSettingByKey(
                            "ebaysetting.appid", "");

        var ebayCertIdSetting = _settingService.GetSettingByKey(
                            "ebaysetting.certid", "");

        var ebayRuNameSetting = _settingService.GetSettingByKey(
                            "ebaysetting.appid", "");

        var stringToEncode = ebayAppIdSetting + ":" + ebayCertIdSetting;

        HttpClient client = new HttpClient();
        byte[] bytes = Encoding.UTF8.GetBytes(stringToEncode);
        var base64string = "Basic " + System.Convert.ToBase64String(bytes);
        client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Authorization", base64string);

        var stringContent = "?grant_type=client_credentials&" + "redirect_uri=" + ebayRuNameSetting + "&scope=https://api.sandbox.ebay.com/oauth/api_scope";
        var requestBody = new StringContent(stringContent.ToString(), Encoding.UTF8, "application/json");
        requestBody.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");
        var response = client.PostAsync("https://api.sandbox.ebay.com/identity/v1/oauth2/token", requestBody);

执行

Debug.WriteLine（“response.Content=“+response.Result”）时得到的输出是：

response.Content=StatusCode:401，原因短语：“未经授权”，
版本：1.1，内容：System.Net.Http.StreamContent，标题：{

RlogId：
t6ldssk%28ciudbq%60anng%7Fu2h%3F%3Cwk%7Difvqn*14%3F0513%29pqtfwpu%29pdhcaj%7E%29fgg%7E%606%28dlh-1613f3af633-0xbd
X-EBAY-C-REQUEST-ID:ri=HNOZE3cmCr94，rci=6kMHBw5dW0vMDp8A

X-EBAY-C-VERSION:1.0.0 X-EBAY-REQUEST-ID:
1613f3af62e.a096c6b.25e7e.ffa2b377！/identity/v1/oauth2/！10.9.108.107！r1esbngcos[]！token.unknown_grant！10.9.107.168！r1oauth-envadvcdhidzs5k[]
连接：保持活动日期：2018年1月29日星期一00:04:44 GMT

设置Cookie:ebay=%5Esbf%3D%23%5E；域=.ebay.com；路径=/

WWW认证：基本内容长度：77内容类型：
应用程序/json}

有人能看出我错在哪里吗。干杯
好，因此身份验证失败，因为我发送了错误的身份验证令牌。需要从应用程序令牌获取oauth令牌

因此，与下面的base64编码令牌不同：

var base64string = "Basic " + System.Convert.ToBase64String(bytes);
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Authorization", base64string);

我需要做以下工作：

url = "https://api.sandbox.ebay.com/sell/inventory/v1/bulk_update_price_quantity";
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

        request.Method = "POST";
        //request.ContentType = "application/json; charset=utf-8";
        request.Headers.Add("Authorization", "Bearer **OAUTH TOKEN GOES HERE WITHOUT ASTERIKS**");

        // Send the request
        using (var streamWriter = new StreamWriter(request.GetRequestStream()))
        {
            streamWriter.Write(jsonInventoryRequest);
            streamWriter.Flush();
            streamWriter.Close();
        }

        // Get the response
        HttpWebResponse response = (HttpWebResponse) request.GetResponse();
        if (response != null)
        {
            using (var streamReader = new StreamReader(response.GetResponseStream()))
            {
                // Parse the JSON response
                var result = streamReader.ReadToEnd();
            }
        }

我们是在2018年。JSON解析器和格式化程序已经存在多年了。您不应该手动编写JSON，永远不要。也就是说，您的问题在于身份验证方面，而不是发送的JSON。您好@CamiloTerevinto谢谢您的帮助。我还在学习，所以我不知道怎么做。手边有个例子。是的，我认为这是身份验证中的一个错误，但我的凭据是正确的，从我所看到的情况来看，我做的一切都是正确的。如果我能找到一个例子，那就太好了。如果你能停止在标题中添加语言标签，那就太好了。它们只是噪音，不做任何解释“问题”Ok@Proputix将尝试记住，下一次401表示您未经授权/认证。我猜您的请求甚至在读取json负载之前就被拒绝了。您应该使用库（例如JSON.Net）来处理JSON。
url = "https://api.sandbox.ebay.com/sell/inventory/v1/bulk_update_price_quantity";
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

        request.Method = "POST";
        //request.ContentType = "application/json; charset=utf-8";
        request.Headers.Add("Authorization", "Bearer **OAUTH TOKEN GOES HERE WITHOUT ASTERIKS**");

        // Send the request
        using (var streamWriter = new StreamWriter(request.GetRequestStream()))
        {
            streamWriter.Write(jsonInventoryRequest);
            streamWriter.Flush();
            streamWriter.Close();
        }

        // Get the response
        HttpWebResponse response = (HttpWebResponse) request.GetResponse();
        if (response != null)
        {
            using (var streamReader = new StreamReader(response.GetResponseStream()))
            {
                // Parse the JSON response
                var result = streamReader.ReadToEnd();
            }
        }