bot-getactivity

private async Task<string> GetActivity(string token, string activity, DateTime Start, DateTime end)
{
    string res = string.Empty;
    try
    {
        res = await MakeRequestAsync(token, "me/Activities/",
            string.Format("startTime={0}&endTime={1}&activityTypes={2}&ActivityIncludes=Details",
            Start.ToUniversalTime().ToString("yyyy'-'MM'-'dd'T'HH':'mm':'ss'.'fff'Z'"),
            end.ToUniversalTime().ToString("yyyy'-'MM'-'dd'T'HH':'mm':'ss'.'fff'Z'"),
            activity));
    }
    catch (Exception ex)
    {
        return $"API Request Error - {ex.Message}";
    }

    await Task.Run(() =>
    {
        // Format the JSON string 
        var obj = JsonConvert.DeserializeObject(res);
        res = JsonConvert.SerializeObject(obj, Formatting.Indented);
    });

    return res;
}