C# eBay分类应用编程接口Get_Category_Suggestions

Question

我无法让新的eBay Taxonomy API与使用C#的get_category_suggestions调用一起正常工作，以替换eBay正在弃用的旧GetSuggestedCategories调用。我使用的方法与调用较新的Taxonomy API的其他部分时使用的方法完全相同，它可以在eBay API中获得默认的类别树id。下面的代码可以让我获得EBAY-US的树节点ID，即124。

        HttpWebRequest request = WebRequest.Create("https://api.ebay.com/commerce/taxonomy/v1/get_default_category_tree_id?marketplace_id=EBAY-US") as HttpWebRequest;

        request.Method = "GET";
        request.Headers.Add(HttpRequestHeader.Authorization, System.Web.HttpUtility.HtmlEncode("Bearer " + accessToken));
        request.Headers.Add("X-EBAY-C-MARKETPLACE-ID", "EBAY-US");


        log.Debug("starting request.GetRequestStream get_category_suggestions");
        string result = null;
        var response = (HttpWebResponse)request.GetResponse();
        using (var streamReader = new StreamReader(response.GetResponseStream()))
        {
            result = streamReader.ReadToEnd();
        }

        log.Debug("about to load results to json reader");
        var reader = new JsonTextReader(new StringReader(result));
        log.Debug("successfully loaded results");   

然后，我使用124个默认的类别树id来尝试使用与eBay完全相同的代码的get_category_suggestions (https://developer.ebay.com/api-docs/commerce/taxonomy/resources/category_tree/methods/getCategorySuggestions#h2-samples)，但我总是收到来自eBay的404not Found消息。这里我漏掉了什么？问题代码如下：

HttpWebRequest request = WebRequest.Create("https://api.ebay.com/commerce/taxonomy/v1/get_default_category_tree_id?marketplace_id=EBAY-US") as HttpWebRequest;
        request.Method = "GET";
        request.Headers.Add(HttpRequestHeader.Authorization, System.Web.HttpUtility.HtmlEncode("Bearer " + accessToken)); 
        
request.Headers.Add("X-EBAY-C-MARKETPLACE-ID", "EBAY-US");request.Headers.Add("Accept-Encoding", "application/gzip");

        log.Debug("starting request.GetRequestStream get_category_suggestions");
        string result = null;
        var response = (HttpWebResponse)request.GetResponse();
        using (var streamReader = new StreamReader(response.GetResponseStream()))
        {
            result = streamReader.ReadToEnd();
        }

        log.Debug("about to load results to json reader");
        var reader = new JsonTextReader(new StringReader(result));
        log.Debug("successfully loaded results");   

Answer 1

所以我看到在category_tree_id的调用getCategorySubtree的文档中，他们使用了数字0。需要明确的是，数字0并不是getCategorySuggestions文档中所述的数字。*截至2021年4月，文档指出，您首先需要调用getDefaultCategoryTree并使用该返回作为您的category_tree_id。但是知道eBay是如何运行的(不太好)，我用数字0作为category_tree_id尝试了一下getCategorySuggestions调用，它工作了。

HttpWebRequest request = WebRequest.Create("https://api.ebay.com/commerce/taxonomy/v1/category_tree/0/get_category_suggestions?q=" + title) as HttpWebRequest;
request.Method = "GET";
request.Headers.Add(HttpRequestHeader.Authorization, System.Web.HttpUtility.HtmlEncode("Bearer " + accessToken));
request.Headers.Add("X-EBAY-C-MARKETPLACE-ID", "EBAY-US");
request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
log.Debug("starting request.GetRequestStream get_category_suggestions");
string result = null;
var response = (HttpWebResponse)request.GetResponse();
using (var streamReader = new StreamReader(response.GetResponseStream()))
{
    result = streamReader.ReadToEnd();
}
log.Debug("about to load results to json reader");
var reader = new JsonTextReader(new StringReader(result));
log.Debug("successfully loaded results");