LightSpeed零售API中的刷新访问令牌

Question

访问令牌过期后，我无法刷新它。我不知道出了什么问题，我按照文档进行了跟踪。我正在使用WCF服务，并得到以下错误。

{StatusCode: 400，ReasonPhrase：“坏请求”，版本: 1.1，内容: System.Net.Http.StreamContent，标头：{连接:保持活动 X-帧-选项: SAMEORIGIN XSS保护: 1；mode=block X-内容-类型-选项: nosniff Expect-CT: max-age=604800，report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct“CF-RAY: 4294254a0b608a9d-BOM缓存-控制:无存储日期: Mon，2018年6月11日12:40:21 GMT集-Cookie：__cfduid=d9ac433a81ce1ec1aedad217862472b131528720820；expires=Tue，11 -6月19日12:40:20 :20 GMT；path=/；domain=.lightspeedapp.com；HttpOnly；Secure Server: cloudflare内容长度: 69内容类型: application/json }}

public string RefreshToken(string clientsecretkey, string clientkey, string refreshToken)
    {

        string newToken = "";
        int expTime = 0;
        string scope = "";
        string type = "";

        try
        {
            using (var client = new HttpClient())
            {
                using (var content = new MultipartFormDataContent())
                {
                    var values = new[]
                {
                    new KeyValuePair<string, string>("refresh_token", refreshToken),                       
                    new KeyValuePair<string, string>("client_id",clientkey),
                    new KeyValuePair<string, string>("client_secret",clientsecretkey),
                    new KeyValuePair<string, string>("grant_type", "refresh_token")

                };
                    foreach (var keyValuePair in values)
                    {
                        content.Add(new StringContent(keyValuePair.Value), keyValuePair.Key);
                    }                        

                    var fileContent = new ByteArrayContent(new byte[100]);
                    fileContent.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")
                    {
                        FileName = "Foo.txt"
                    };
                    content.Add(fileContent);

                    var requestUri = "https://cloud.lightspeedapp.com/oauth/access_token.php";
                    HttpResponseMessage result = client.PostAsync(requestUri, content).Result;

                    if (result.StatusCode == HttpStatusCode.OK)
                    {
                        var smessage = result.Content.ReadAsAsync<UserCredentials>(new[] { new JsonMediaTypeFormatter() }).Result;

                        if (smessage != null)
                        {
                            newToken = smessage.AccessToken;
                            expTime = smessage.ExpiresIn;
                            scope = smessage.Scope;
                            type = smessage.TokenType;
                        }
                    }
                }
            }
        }

Answer 1

我找到解决办法了。下面是变化..。此外，我们必须在最初获得访问令牌时获得刷新令牌。

                    if (result.StatusCode == HttpStatusCode.OK)
                    {
                        var smessage = result.Content.ReadAsAsync<UserCredentials>(new[] { new JsonMediaTypeFormatter() }).Result;

                        if (smessage != null)
                        {

                            newToken = smessage.AccessToken;
                            expTime = smessage.ExpiresIn;
                            scope = smessage.Scope;
                            type = smessage.TokenType;
                            refToken = smessage.RefreshToken;
                        }
                    }