using System;

using System.Globalization;

using Newtonsoft.Json;

using Newtonsoft.Json.Converters;

​

public partial class TwitchData

{

    [JsonProperty("data")]

    public Datum[] Data { get; set; }

​

    [JsonProperty("pagination")]

    public Pagination Pagination { get; set; }

}

​

public partial class Datum

{

    [JsonProperty("id")]

    public string Id { get; set; }

​

    [JsonProperty("user_id")]

    [JsonConverter(typeof(ParseStringConverter))]

    public long UserId { get; set; }

​

    [JsonProperty("game_id")]

    [JsonConverter(typeof(ParseStringConverter))]

    public long GameId { get; set; }

​

    [JsonProperty("community_ids")]

    public object[] CommunityIds { get; set; }

​

    [JsonProperty("type")]

    public string Type { get; set; }

​

    [JsonProperty("title")]

    public string Title { get; set; }

​

    [JsonProperty("viewer_count")]

    public long ViewerCount { get; set; }

​

    [JsonProperty("started_at")]

    public DateTimeOffset StartedAt { get; set; }

​

    [JsonProperty("language")]

    public string Language { get; set; }

​

    [JsonProperty("thumbnail_url")]

    public string ThumbnailUrl { get; set; }

}

​

public partial class Pagination

{

    [JsonProperty("cursor")]

    public string Cursor { get; set; }

}

​

public partial class TwitchData

{

    public static TwitchData FromJson(string json) 

    {

        return JsonConvert.DeserializeObject<TwitchData>(json, Converter.Settings);

    }

    public override string ToString()

    {

        return this.Pagination.Cursor;

    }

}

​

public static class Serialize

{

    public static string ToJson(this TwitchData self)

    {

        return JsonConvert.SerializeObject(self, Converter.Settings);

    }

}

​

internal static class Converter

{

    public static readonly JsonSerializerSettings Settings = new JsonSerializerSettings

    {

        MetadataPropertyHandling = MetadataPropertyHandling.Ignore,

        DateParseHandling = DateParseHandling.None,

        Converters = {

            new IsoDateTimeConverter { DateTimeStyles = DateTimeStyles.AssumeUniversal }

        },

    };

}

​

internal class ParseStringConverter : JsonConverter

{

    public override bool CanConvert(Type t) 

    {

        return t == typeof(long) || t == typeof(long?);

    }

​

    public override object ReadJson(JsonReader reader, Type t, object existingValue, JsonSerializer serializer)

    {

        if (reader.TokenType == JsonToken.Null) return null;

        var value = serializer.Deserialize<string>(reader);

        long l;

        if (Int64.TryParse(value, out l))

        {

            return l;

        }

        throw new Exception("Cannot unmarshal type long");

    }

​

    public override void WriteJson(JsonWriter writer, object untypedValue, JsonSerializer serializer)

    {

        if (untypedValue == null)

        {

            serializer.Serialize(writer, null);

            return;

        }

        var value = (long)untypedValue;

        serializer.Serialize(writer, value.ToString());

        return;

    }

​

    public static readonly ParseStringConverter Singleton = new ParseStringConverter();

}

​

public class Program

{

    public static void Main()

    {

        var jsonString = "{ \"data\": [     {       \"id\": \"30356128676\",       \"user_id\": \"59788312\",       \"game_id\": \"498652\",       \"community_ids\": [],       \"type\": \"live\",       \"title\": \"A stream\",       \"viewer_count\": 1325,       \"started_at\": \"2018-09-07T16:30:09Z\",       \"language\": \"en\",       \"thumbnail_url\": \"url\"     }   ],   \"pagination\": {     \"cursor\": \"eydBIjpwdWGsLaJhIjp7IkGH4hNl6CH6MXr9\"   } }";

        var twitchData = TwitchData.FromJson(jsonString);

        Console.WriteLine(twitchData);

        Console.WriteLine("Hello World");

    }

}