使用 RestSharp 的多个请求（分页）答案

【问题标题】：Multiple requests (pagination) with RestSharp使用 RestSharp 的多个请求（分页）
【发布时间】：2021-12-14 13:36:51
【问题描述】：

我是 C# 新手，我需要帮助！我需要通过客户端休息发送分页数据。由于数据量很大，我想同时触发几个请求，但是只有一小部分数据到达目的地。你能帮我解决什么问题吗？

public void SendResultsByFireForget(string env, string transactionId, int days)
{
    var client = new RestClient();
    var proxyDefinition = new WebProxy("xxx.xxx.xxx.xxx");
    proxyDefinition.UseDefaultCredentials = true;
    System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
    client.Proxy = proxyDefinition;

    if (String.IsNullOrEmpty(transactionId))
    {
        throw new ArgumentException("Parameter transactionId is null or empty!");
    }

    if (String.IsNullOrEmpty(env))
    {
        throw new ArgumentException("Parameter uri is null or empty!");
    }

    List<Result> listOfResults = Repository.GetResultsByIntervalPerDay(-31);

    if (listOfResults.Count() == 0 || listOfResults == null)
    {
        throw new Exception("The list of results is empty or null");
    }

    var tasks = new List<Task>();

    foreach (List<Result> page in GetPages(listOfResults, 500))
    {
        var currentPageCopy = page;

        var task = Task.Run(() =>
        {
            var currentPage = JSonExtensions.ToJSon(currentPageCopy);
            var request = new RestRequest(
                $"{env.Trim()}/results1/?transaction_id={transactionId.Trim()}",
                Method.POST);
            request.RequestFormat = DataFormat.Json;
            request.AddJsonBody(currentPage);

            client.ExecuteAsync(request);
        });
        tasks.Add(task);
    }
    Task.WaitAll(tasks.ToArray());
}

【问题讨论】：

您可以尝试在client.ExecuteAsync(request); 之前添加await，并在此处添加async：Task.Run(async () =>。

标签： c# concurrency threadpool restsharp

【解决方案1】：

如果你可以得到第一个结果的总结果数，你可以这样做。

// RestClient is extented restsharp client you can do your own .

List<User> UserList = new();

// inline method

UserList getUser(int startCount,int limit)
{
  var Data = RestClient.GetData(Url);
  return Data;
}

// another inline for getting total count

int GetOrderCounts()
{
   // get total counts
   var FData = getUser(0,0);
   return FData.TotalRecordCount;
}

  var GetTotalCount = GetOrderCounts();
  for (int ONumber = 0; ONumber <= GetOrderCount; ONumber += 100)
     {
        var Return = GetOrders(OrderNumber, 100);
        if (Return != null)
                UserList.AddRange(Return.Data);
     };

【讨论】：