Extension method for Nancy.Response to get the contents as a string

ResponseExtensions.cs

namespace Nancy.Extensions
{
    using System.IO;
    using System.Text;

    public static class ResponseExtensions
    {
        public static string ToString(this Response response, Encoding encoding = null)
        {
            var actualEncoding = encoding ?? Encoding.UTF8;

            using (var buffer = new MemoryStream())
            {
                response.Contents.Invoke(buffer);

                var bufferArray = buffer.ToArray();

                return actualEncoding.GetString(bufferArray);
            }
        }
    }
}