C# 解析 JSON API 数组

Question

我正在尝试从 C# 中的这个 api 获取“最后一个”对象：https://bittrex.com/api/v1.1/public/getmarketsummary?market=usdt-btc

我已经有了将数组放入我的 C# 代码的脚本，但我不知道如何获取此对象，我在 Google 上四处寻找帮助，我发现了以下内容：https://www.codementor.io/andrewbuchan/how-to-parse-json-into-a-c-object-4ui1o0bx8 但它不起作用我。

编辑 工作版本在这里：http://dotnetfiddle.net/5VFof9

//GET api array
    string GET(string url) {
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
        try {
            WebResponse response = request.GetResponse();
            using (Stream responseStream = response.GetResponseStream()) {
                StreamReader reader = new StreamReader(responseStream, Encoding.UTF8);
                return reader.ReadToEnd();
            }
        } catch (WebException ex) {
            WebResponse errorResponse = ex.Response;
            using (Stream responseStream = errorResponse.GetResponseStream()) {
                StreamReader reader = new StreamReader(responseStream, Encoding.GetEncoding("utf-8"));
                String errorText = reader.ReadToEnd();
                // log errorText
            }
            throw;
        }
    }

    decimal coin_price() {
        String array = GET("https://bittrex.com/api/v1.1/public/getmarketsummary?market=usdt-btc");
        decimal price = 0;

        //return price in price var
        return price;
    }

    private void Form1_Load(object sender, EventArgs e) {
        price.Text = ""; //Display price here
    }

Answer 1

您可以使用 JSON.NET：

Try it online

public static void Main()
{       
    var url = "https://bittrex.com/api/v1.1/public/getmarketsummary?market=usdt-btc";
    // for a simple get, use WebClient
    var json = new WebClient().DownloadString(url);

    // learn more on https://www.newtonsoft.com/json
    var root = JsonConvert.DeserializeObject<RootObject>(json);

    // root.Results.Last() is your last item
    // learn more on Last() at https://msdn.microsoft.com/fr-fr/library/bb358775(v=vs.110).aspx
    Console.WriteLine(root.Result.Last().TimeStamp);
}

// generated with http://json2csharp.com/ (VS has a builtin with edit>past special)
public class Result
{
    public string MarketName { get; set; }
    public double High { get; set; }
    public double Low { get; set; }
    public double Volume { get; set; }
    public double Last { get; set; }
    public double BaseVolume { get; set; }
    public DateTime TimeStamp { get; set; }
    public double Bid { get; set; }
    public double Ask { get; set; }
    public int OpenBuyOrders { get; set; }
    public int OpenSellOrders { get; set; }
    public double PrevDay { get; set; }
    public DateTime Created { get; set; }
}

public class RootObject
{
    public bool Success { get; set; }
    public string Message { get; set; }
    public List<Result> Result { get; set; }
}