MonkeyCache.cs

public async Task<T> GetAsync<T>(string url, int days = 7, bool forceRefresh = false)
{
    var json = string.Empty;

    //check if we are connected, else check to see if we have valid data
    if (!CrossConnectivity.Current.IsConnected)
        json = Barrel.Current.Get(url);
    else if (!forceRefresh && !Barrel.Current.IsExpired(url))
        json = Barrel.Current.Get(url);

    try
    {
        //skip web request because we are using cached data
        if (string.IsNullOrWhiteSpace(json))
        {
            json = await client.GetStringAsync(url);
            Barrel.Current.Add(url, json, TimeSpan.FromDays(days));
        }
        return await Task.Run(() => JsonConvert.DeserializeObject<T>(json));
    }
    catch (Exception ex)
    {
        Console.WriteLine($"Unable to get information from server {ex}");
        //probably re-throw here :)
    }

    return default(T);
}