this.toastsPromise.then((toasts: IToast[]) => {
        for (let t of toasts){
          //Setup callbacks to track dismisal status
          let overrides: ToastrOptions = {
            onclick: () => {
              ToastService.acknowledgeToast(t.Id, this.context.pageContext.web.id);
            },
            onCloseClick: () => {
              ToastService.acknowledgeToast(t.Id, this.context.pageContext.web.id);
            }
          };

          switch (t.Severity){
            case 'Warning':
              toastr.warning(t.Message, t.Title, overrides);
              break;
            case 'Error':
              toastr.error(t.Message, t.Title, overrides);
              break;
            case 'Success':
              toastr.success(t.Message, t.Title, overrides);
              break;
            default:
              toastr.info(t.Message, t.Title, overrides);
              break;
          }
        }
      }).catch((error: any): void => {

	add(): void {
		if (this.form.valid) {
			this.entryService.addEntry({ name: this.name });
			this.name = '';
		} else {
			warning('You must enter a name');
		}
	}

	private handleError (error: any) {
		// In a real world app, we might send the error to remote logging infrastructure
		let errMsg = error._body || 'Server error';
		console.error(errMsg); // log to console instead

		if (error.status >= 500) {
			toastr.error('An error has occured. Please contact support for further assistance');
		} else {
			toastr.warning(errMsg);
		}
		return Observable.throw(errMsg);
	}

 warning(message: string, title?: string) {
   return toastr.warning(message, title);
 }

 warning(msg:any, options:ToastrOptions = {}) {
     toastr.warning(msg, options.title, options);
 }

function showWarning(message) {
    toastr.warning(message);
}