我使用Postman从Sigfox API检索的数据与我使用C#程序使用HTTP客户端时获得的数据不同。
API包含查询参数，例如：

• limit=（a number）--限制我可以接收的消息数量的数字（不影响问题）

和

• before =（unix time）
• since=（unix time）是时间参数。

在postman中，我收到的数据遵循时间参数，这意味着收到的数据是在设定时间之前和设定时间之后。
API链接（含假信息）：https://backend.sigfox.com/api/devicetypes/devicetpes-id(filler)/messages?limit=100&before=1568186400&since=1568185800
这是数据的下载部分：

public static class DownloadData
{
    private static string UrlParameters="?limit=100&before=&since=";
    public static void GetfromAPI(string deviceId, long beforeTime, long sinceTime)
    {
        var apiResponse = new Models.Datas();
        var baseUrl = ConfigurationManager.AppSettings["ApiBaseUrl"];
        var username = ConfigurationManager.AppSettings["ApiUserName"];
        var password = ConfigurationManager.AppSettings["ApiPassword"];
        var mediatype = ConfigurationManager.AppSettings["MediaType"];
        var finalUrl = string.Format(baseUrl, deviceId, beforeTime, sinceTime);
        using (var client = new ApiClient(finalUrl, username, password, mediatype))
        {
            //apiResponse = client.GetAsyncMessage<Models.Datas>(UrlParameters).Result;
            apiResponse = client.GetAsyncMessage<Models.Datas>(UrlParameters).Result;
            InsertToDatabase(FormatData(apiResponse.Data)); //apiresponse.data is holding the data

        }
    }

字符串
http客户端

public class ApiClient : IDisposable
{
    private HttpClient _httpClient;
    private readonly string _baseurl;
    private readonly string _username;
    private readonly string _password;
    private readonly string _mediatype;

    public ApiClient(string baseurl, string username, string password , string mediatype)
    {
        _baseurl = baseurl;
        _username = username;
        _password = password;
        _mediatype = mediatype;
    }

    public async Task<TResult> GetAsyncMessage<TResult>(string url) where TResult : class, new()

    {
        var strResponse = await GetAsyncMessage(url);


        return JsonConvert.DeserializeObject<TResult>(strResponse, new JsonSerializerSettings ///str respons holding the string 
        {
            ContractResolver = new CamelCasePropertyNamesContractResolver()
        });
    }

    private async Task<string> GetAsyncMessage(string url)
    {
        CheckHttpClientConnection();

        using (var response = await _httpClient.GetAsync(url))
        {
            response.EnsureSuccessStatusCode();
            return await response.Content.ReadAsStringAsync();

        }
    }

型
httpclientwith basic auth

private void CreateHttpClient()
    {
        _httpClient = new HttpClient { BaseAddress = new Uri(_baseurl) };
        byte[] cred = UTF8Encoding.UTF8.GetBytes(_username + ":" + _password);
        _httpClient.DefaultRequestHeaders.Authorization =
            new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", Convert.ToBase64String(cred));
        _httpClient.DefaultRequestHeaders.Accept.Add(
            new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue(_mediatype));
    }

型
运行顶层代码的另一个文件中的FUNCTION

DownloadData.GetfromAPI("devicetypesid filler",Common.BCurrenttimetoUnix(), Common.SCurrenttimetoUnix());

the common.bcurrentimetounix etc is taking the value from the function as the before and since query parameters.

型
所以我在postman中得到的数据遵循查询参数。这意味着我得到的数据是在before和since时间跨度中。
举例说明：
before：4.50pm因为4.40pm是为params设置的时间。
检索到的数据为第1个数据= 4.49pm，第100个数据= 4.41pm。
然而，在我的C#程序中，它甚至不遵循参数。检索的数据超过since和before计时。
编辑#1.图片
x1c 0d1x的数据

编辑#2

BASEURL：

<add key="ApiBaseUrl" value="https://api.sigfox.com/v2/device-types/{0}/messages" />

型

编辑#3

使用此作为baseurl：

的

<add key="ApiBaseUrl"  value="https://api.sigfox.com/v2/device-types/{0}/messages?limit=100&amp;before={1}&amp;since={2}" />

型

编辑#4

这个代码正在工作。

public static void GetfromAPI(string deviceId, long beforeTime, long sinceTime)
        {
            var apiResponse = new Models.Datas();
            var baseUrl = ConfigurationManager.AppSettings["ApiBaseUrl"];
            var username = ConfigurationManager.AppSettings["ApiUserName"];
            var password = ConfigurationManager.AppSettings["ApiPassword"];
            var mediatype = ConfigurationManager.AppSettings["MediaType"];
            var urlparam = ConfigurationManager.AppSettings["ApiParam"];
                
            var finalurl = string.Format(baseUrl, deviceId);
            var urlParam = $"?limit=100&before={beforeTime}&since={sinceTime}";

            using (var client = new ApiClient(finalurl, username, password, mediatype))
            {
                //apiResponse = client.GetAsyncMessage<Models.Datas>(UrlParameters).Result;
                apiResponse = client.GetAsyncMessage<Models.Datas>(urlParam).Result;
                InsertToDatabase(FormatData(apiResponse.Data)); //apiresponse.data is holding the data

            }

型