调用 StackAPI 端点

Question

你好我正在写一个小任务来学习，查询Whosebug api 我想实现以下 ● 当天提出的问题数量 ● 所有问题的总浏览量 ● 不同的（即没有重复的）逗号分隔的标签列表，用于该日期的所有问题，按字母顺序排列。

我已经完成了下面的 api 调用，但这不是我有 expected.First 我没有找到 api 终点来获取 no.of 问题的日期堆栈交换api。非常感谢任何建议

 static void Main()
    {
      Console.WriteLine("Making Whosebug API Call...");
        using (var client = new HttpClient(new HttpClientHandler { AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate }))
        {
            client.BaseAddress = new Uri("https://api.stackexchange.com/docs");
           // Int32 unixTimestamp = (Int32) (DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1,0,0,0,0))).TotalSeconds;
            var unixStamp = Helper.ConvertToDateTime("2017, 09, 23, 0, 0, 0");
            var response = client.GetAsync("questions?fromdate="+ unixStamp + "&todate="+ unixStamp + "&site=Whosebug").Result;
            response.EnsureSuccessStatusCode();
            var s = response.Content.ReadAsStringAsync().Result;
            var result = response.Content.ReadAsStringAsync().Result.Count();
            Console.WriteLine("Total no.of questions asked: " + result);
        }
        Console.ReadLine();
    }

Answer 1

首先你的基地址应该是https://api.stackexchange.com/2.2。要获取一天内创建的问题数，您必须修改默认文件管理器以包含 total 字段。运行以下请求：

/2.2/questions?fromdate=1506211200&todate=1506297600&order=desc&sort=creation&site=Whosebug&filter=!)5IW-5QudQH7_nJ7d.eBuocQb(B)

将return:

{
    "items": [],
    "has_more": false,
    "quota_max": 10000,
    "quota_remaining": 9978,
    "total": 3666
}

对于其他两个要求，您应该创建一个包含所需字段的新过滤器（如果您想处理 returned 问题，您可能希望在过滤器中包含更多字段以避免重复请求).创建见：filter/create and Custom Filters

得到结果后你必须解析 returned JSON 字符串（如果你想要 XML 被 returned 你必须解析 XML).您可以使用 Newtonsoft or the build in DataContractJsonSerializer (for more information see here).

这是一个使用内置序列化程序的示例：

using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.Threading.Tasks;
using System.Net;
using System.Net.Http;
using System.IO;

[DataContract]
public class Question
{
    // Question members...
}

[DataContract]
public class TotalQuestionsResult
{
    [DataMember(Name = "items")]
    public Question[] Items { get; set; }
    [DataMember(Name = "has_more")]
    public bool HasMore { get; set; }
    [DataMember(Name = "quota_max")]
    public int QuotaMax { get; set; }
    [DataMember(Name = "quota_remaining")]
    public int QuotaRemaining { get; set; }
    [DataMember(Name = "total")]
    public int Total { get; set; }
}

public async Task<int> GetTotalNumberOfQuestions()
{
    // Get the data.
    using (var client = new HttpClient(new HttpClientHandler { AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate }))
    {
        client.BaseAddress = new Uri("https://api.stackexchange.com/2.2");
        var response = await client.GetAsync("questions?fromdate=1506211200&todate=1506297600&order=desc&sort=creation&site=Whosebug&filter=!)5IW-5QudQH7_nJ7d.eBuocQb(B)");
        var responseStream = new MemoryStream(await response.Content.ReadAsByteArrayAsync());
        var serializer = new DataContractJsonSerializer(typeof(TotalQuestionsResult));
        var result = (TotalQuestionsResult)serializer.ReadObject(responseStream);

        return result.Total;
    }
}

调用 StackAPI 端点

Calling StackAPI endpoints

c#

api

asp.net-web-api

stackexchange-api