Angular Bootstrap alerts MDB Pro component

To improve the communication between your website/application and its users, you might want to consider adding some automatic pop-up messages.

With the right use of colors, they add some emotional weight to our information, ranging from a simple warning to critical system failure or from an operation success to a neutral information.

Toast service requires either BrowserAnimationsModule or NoopAnimationsModule modules. Please import them to your app.module.ts.


Info message Warning message Success message Error message

<!--Info message-->
<a class="btn btn-info waves-light" (click)="showInfo()" mdbWavesEffect>Info message</a>
<!--Warning message-->
<a class="btn btn-warning waves-light" (click)="showWarning()" mdbWavesEffect>Warning message</a>
<!--Success message-->
<a class="btn btn-success waves-light" (click)="showSuccess()" mdbWavesEffect>Success message</a>
<!--Error message-->
<a class="btn btn-danger waves-light" (click)="showError()" mdbWavesEffect>Error message</a>

import { Component } from '@angular/core';
import { ToastService } from 'your_path_to/typescripts/pro';

  selector: 'toast-component-example',
  templateUrl: 'toast.component.html',

export class ToastComponent  {

  constructor(private toastrService: ToastService) {}

  showSuccess() {
    this.toastrService.success('Info message');

  showError() {
    this.toastrService.error('Warning message');

  showInfo() {'Success message');

  showWarning() {
    this.toastrService.warning('Error message');


Important update!

Since version 4.3.7 , Toast Service has to be imported separately as singleton to avoid circular dependencies.

Import Toast Service as singleton:


import { ToastModule } from 'ng-mdb-pro/pro/alerts';

imports: [

import {ToastService} from '../../typescripts/pro/alerts' 
private toast: ToastService
) { }

Sample usage:

ngOnInit() {
    () =>"It works!")


There's global options and individual toast options. All individual toast options are included in the global options. See file toastr-config.ts The toastComponent can be inherited and modified.

Global options for alerts need to be set in ToastModule.forRoot({}) in imports: [] array located in app.module.ts

For example, global options that allows only 2 alerts be visible at time should looks in this way: ToastModule.forRoot({maxOpened: 2})

ToastrConfig (Global Options)

Name Default Description
maxOpened: number 0 max toasts opened; toasts will be queued
autoDismiss: boolean false dismiss current toast when max is reached
iconClasses error: 'toast-error', info: 'toast-info', success: 'toast-success', warning: 'toast-warning' classes used on toastr service methods
newestOnTop: boolean true new toast placement
preventDuplicates: boolean false block duplicate messages

ToastConfig (Individual Toast options)

Name Default Description
closeButton: boolean false show close button
timeOut: number 5000 time to live
enableHtml: boolean false allow html in message; (UNSAFE)
extendedTimeOut: number 1000 time to close after a user hovers over toast
progressBar: boolean false show progress bar
toastClass: string 'toast' class on toast. Note that if you want to add your custom class, you have to put it in your's global stylesheet - styles.scss
positionClass: string 'toast-top-right' class on toast
titleClass: string 'toast-title' class inside toast on title
messageClass: string 'toast-message' class inside toast on message
tapToDismiss: boolean true close on click


showSuccess() { 
  let options = { closeButton: true, tapToDismiss: false,  titleClass: 'yellow' };
  this.toastrService.success('Hello world!', 'Toastr success!', options);
showError() {
  let options = { enableHtml: false,  positionClass: 'toast-bottom-right' };
  this.toastrService.error('Error message', 'Toastr error!', options);

showInfo() {
  let options = { extendedTimeOut: 30000, messageClass: 'pink' };'Info message', 'Toastr info!', options);

showWarning() {
  let options = { progressBar: true,  timeOut: 3000,  toastClass: 'black'};
  this.toastrService.warning('Warnig message', 'Toastr warning!', options);

API Reference:

In order to speed up your application, you can choose to import only the modules you actually need, instead of importing the entire MDB Angular library. Remember that importing the entire library, and immediately afterwards a specific module, is bad practice, and can cause application errors.

API Reference for MDB Angular Toasts:
// For MDB Angular Pro
import { ToastModule, WavesModule } from 'ng-uikit-pro-standard'
// Angular Animations Module
import { BrowserAnimationsModule } from '@angular/platform-browser/animations'