使用etsy api从桌面应用程序创建列表

Question

我正在开发一个桌面应用程序，用户可以使用etsy api创建列表。根据etsy的支持，如果有人访问他自己的商店，则不需要完全访问。然而，我得到以下错误：

任何帮助，将不胜感激。

这里是代码：

var baseUrl = "http://openapi.etsy.com/v2/listings"; 
    restClient = new RestClient(baseUrl); 
    oAuth = new OAuthBase();   
    e1 = new Etsy_portal(consumerKey, consumerSecret); 
    string str = e1.GetConfirmUrl(out AccessToken, out AccessTokenSecret); 
    e1.ObtainTokenCredentials(AccessToken, AccessTokenSecret, verifiedToken, out PAccessToken, out PAccessTokenSecret); 
    string nonce = oAuth.GenerateNonce(); 
    string timeStamp = oAuth.GenerateTimeStamp(); 
    string normalizedUrl; 
    string normalizedRequestParameters; 
    string sig = oAuth.GenerateSignature(new Uri(baseUrl + MethodLocation), consumerKey, consumerSecret, PAccessToken, PAccessTokenSecret, 
         "Post", timeStamp, nonce, 
    OAuth.OAuthBase.SignatureTypes.HMACSHA1, out normalizedUrl, out normalizedRequestParameters); 
    restClient = new RestClient(baseUrl); 
    var request = new RestRequest(); 

    request.AddParameter("api_key", consumerKey); 
    request.AddParameter("oauth_consumer_key", consumerKey); 
    request.AddParameter("oauth_token", PAccessToken); 
    request.AddParameter("oauth_nonce", nonce); 
    request.AddParameter("oauth_timestamp", timeStamp); 
    request.AddParameter("oauth_signature", sig); 
    request.AddParameter("oauth_signature_method", "HMAC-SHA1"); 
    request.AddParameter("oauth_version", "1"); 

    request.AddParameter("title", "This is a test"); 
    request.AddParameter("description", "Test Description"); 
    request.AddParameter("quantity", "1"); 
    request.AddParameter("price", "5"); 
    request.AddParameter("is_supply", "false"); 
    request.AddParameter("when_made", "2010_2017"); 
    request.AddParameter("who_made", "i_did"); 
    request.Method = Method.POST; 

      IRestResponse resRes = restClient.Execute(request); 

Answer 1

var baseUrl = "http://openapi.etsy.com/v2/listings"; 
    restClient = new RestClient(baseUrl); 
    oAuth = new OAuthBase(); 
    e1 = new Etsy_portal(consumerKey, consumerSecret); 
    string str = e1.GetConfirmUrl(out AccessToken, out AccessTokenSecret); 
    e1.ObtainTokenCredentials(AccessToken, AccessTokenSecret, verifiedToken, out PAccessToken, out PAccessTokenSecret); 
    sigHasher = new HMACSHA1(new ASCIIEncoding().GetBytes(string.Format("{0}&{1}", consumerSecret, PAccessTokenSecret))); 
    string nonce = oAuth.GenerateNonce(); 
    string timeStamp = oAuth.GenerateTimeStamp(); 
    string normalizedUrl; 
    string normalizedRequestParameters; 
    var data = new Dictionary<string, string> { 
     { "title", "This is a test1" }, 
     { "description", "Test Description1" }, 
     { "quantity", "1" }, 
     { "price", "5" }, 
     { "is_supply", "false" }, 
     { "state", "draft" }, 
     { "when_made", "2010_2017" }, 
     { "who_made", "i_did" }, 
     { "shipping_template_id", "43862539760" } 
    }; 


    data.Add("oauth_consumer_key", consumerKey); 
    data.Add("oauth_signature_method", "HMAC-SHA1"); 
    data.Add("oauth_timestamp", timeStamp); 
    data.Add("oauth_nonce", nonce); // Required, but Twitter doesn't appear to use it, so "a" will do. 
    data.Add("oauth_token", PAccessToken); 
    data.Add("oauth_version", "1.0"); 
    data.Add("oauth_signature", GenerateSignature(baseUrl, data)); 
    string oAuthHeader = GenerateOAuthHeader(data); 
    var formData = new FormUrlEncodedContent(data.Where(kvp => !kvp.Key.StartsWith("oauth_"))); 
    using (var http = new HttpClient()) 
    { 
     http.DefaultRequestHeaders.Add("Authorization", oAuthHeader); 
     var httpResp = http.PostAsync(baseUrl, formData); 
     var respBody = httpResp.Result; 

    }