Spotify.NET/SpotifyAPI.Web/Models/BasicModel.cs

using System.Net;
using Newtonsoft.Json;

namespace SpotifyAPI.Web.Models
{
  public abstract class BasicModel
  {
    [JsonProperty("error")]
    public Error Error { get; set; }

    private ResponseInfo _info;

    public bool HasError() => Error != null;

    internal void AddResponseInfo(ResponseInfo info) => _info = info;

    public string Header(string key) => _info.Headers?.Get(key);

    public WebHeaderCollection Headers() => _info.Headers;

    public HttpStatusCode StatusCode() => _info.StatusCode;
  }
}