C# check if Twitch steam is online or not

API
4

r.data[0] will throw index out of bounds. Instead: return !(r == default(RootObject) || r.data.Length == 0);

json2csharp gives a good base, but I’d recommend using tags and C#-style naming for the objects instead.

E.G.

public class Datum
{
    [JsonProperty("id")] public string ID { get; set; }
    [JsonProperty("user_id")] public string UserID { get; set; }
}

I’d also call RootObject something else like HelixStreamsResponse, so it’s immediately clear, and you don’t end up with multiple RootObjects for different requests.