/// <summary>
        /// Add a provider to the TakNotify service
        /// </summary>
        /// <typeparam name="TProvider">The notification provider</typeparam>
        /// <typeparam name="TOptions">The options for the notification provider</typeparam>
        /// <param name="configureOptions">The options for the notification provider</param>
        /// <param name="requiresHttpClient">Whether the provider requires <see cref="HttpClient"/> or not (default is <c>false</c>)</param>
        /// <returns></returns>
        public NotificationBuilder AddProvider <TProvider, TOptions>(Action <TOptions> configureOptions, bool requiresHttpClient = false)
            where TProvider : NotificationProvider
            where TOptions : NotificationProviderOptions, new()
        {
            if (requiresHttpClient)
            {
                Services.AddHttpClient();
            }

            Services.Configure(configureOptions);
            Services.AddTransient <TProvider>();

            INotification notification = null;
            TProvider     provider     = null;

            try
            {
                var sp = Services.BuildServiceProvider();

                notification = sp.GetService <INotification>();
                provider     = sp.GetService <TProvider>();
            }
            catch (InvalidOperationException ex)
            {
                if (ex.Message.Contains("IHttpClientFactory"))
                {
                    throw new NoHttpClientFactoryException(nameof(TProvider));
                }

                throw;
            }

            if (notification != null && provider != null)
            {
                notification.AddProvider(provider);
            }

            return(this);
        }