Introduction is a development platform for building WEB, mobile, and desktop applications using HTML, CSS, and TypeScript (JavaScript). Currently, Angular is at version 14 and Google is the main maintainer of the project. Angular is a notification component library with many configuration options. ngx-toastr Prerequisites Before you start, you need to install and configure the tools: git Node.js and npm Angular CLI IDE (e.g. ) Visual Studio Code Getting started Create the Angular application Let’s create the application with the Angular base structure using the with the route file and the SCSS style format. 1. @angular/cli ng new angular-toastr
? Would you like to add Angular routing? Yes
? Which stylesheet format would you like to use? SCSS   [ https://sass-lang.com/documentation/syntax#scss                ]
CREATE angular-toastr/README.md (1059 bytes)
CREATE angular-toastr/.editorconfig (274 bytes)
CREATE angular-toastr/.gitignore (604 bytes)
CREATE angular-toastr/angular.json (3255 bytes)
CREATE angular-toastr/package.json (1076 bytes)
CREATE angular-toastr/tsconfig.json (783 bytes)
CREATE angular-toastr/.browserslistrc (703 bytes)
CREATE angular-toastr/karma.conf.js (1431 bytes)
CREATE angular-toastr/tsconfig.app.json (287 bytes)
CREATE angular-toastr/tsconfig.spec.json (333 bytes)
CREATE angular-toastr/src/favicon.ico (948 bytes)
CREATE angular-toastr/src/index.html (299 bytes)
CREATE angular-toastr/src/main.ts (372 bytes)
CREATE angular-toastr/src/polyfills.ts (2820 bytes)
CREATE angular-toastr/src/styles.scss (80 bytes)
CREATE angular-toastr/src/test.ts (788 bytes)
CREATE angular-toastr/src/assets/.gitkeep (0 bytes)
CREATE angular-toastr/src/environments/environment.prod.ts (51 bytes)
CREATE angular-toastr/src/environments/environment.ts (658 bytes)
CREATE angular-toastr/src/app/app-routing.module.ts (245 bytes)
CREATE angular-toastr/src/app/app.module.ts (393 bytes)
CREATE angular-toastr/src/app/app.component.scss (0 bytes)
CREATE angular-toastr/src/app/app.component.html (24617 bytes)
CREATE angular-toastr/src/app/app.component.spec.ts (1097 bytes)
CREATE angular-toastr/src/app/app.component.ts (219 bytes)
✔ Packages installed successfully. Install and configure the Bootstrap CSS framework. Do steps 2 and 3 of the post . 2. Adding the Bootstrap CSS framework to an Angular application Install the library. 3. ngx-toastr npm install ngx-toastr Configure the library. Change the file and add the file as below. 4. ngx-toastr angular.json toastr.css "styles": [
  "node_modules/bootstrap/scss/bootstrap.scss",
  "node_modules/ngx-toastr/toastr.css",
  "src/styles.scss"
], Import the and modules. Change the file and add the lines as below. 5. BrowserAnimationsModule ToastrModule app.module.ts import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { ToastrModule } from 'ngx-toastr';
imports: [
  BrowserModule,
  BrowserAnimationsModule,
  ToastrModule.forRoot({
    timeOut: 150000, // 15 seconds
    closeButton: true,
    progressBar: true,
  }),
  AppRoutingModule,
], Remove the contents of the class from the file. Import the service and create the , , and methods as below. 6. AppComponent src/app/app.component.ts ToastrService showSuccess showInfo showWarning showError import { Component } from '@angular/core';
import { ToastrService } from 'ngx-toastr';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.scss'],
})
export class AppComponent {

  constructor(private toastrService: ToastrService) {
  }

  public showSuccess(): void {
    this.toastrService.success('Message Success!', 'Title Success!');
  }

  public showInfo(): void {
    this.toastrService.info('Message Info!', 'Title Info!');
  }

  public showWarning(): void {
    this.toastrService.warning('Message Warning!', 'Title Warning!');
  }

  public showError(): void {
    this.toastrService.error('Message Error!', 'Title Error!');
  }

} Remove the contents of the file. Add the buttons as below. 7. src/app/app.component.html <div class="container-fluid py-3">
  <h1>Angular Toastr</h1>
<div class="d-grid gap-2 col-4 mx-auto">
    <button type="button" class="btn btn-sm btn-success" (click)="showSuccess()">Success</button>
    <button type="button" class="btn btn-sm btn-info" (click)="showInfo()">Info</button>
    <button type="button" class="btn btn-sm btn-warning" (click)="showWarning()">Warning</button>
    <button type="button" class="btn btn-sm btn-danger" (click)="showError()">Error</button>
  </div>
</div> Run the application with the command below. 8. npm start

> angular-toastr@1.0.0 start
> ng serve

✔ Browser application bundle generation complete.

Initial Chunk Files | Names         |      Size
vendor.js           | vendor        |   2.70 MB
styles.css          | styles        | 273.40 kB
polyfills.js        | polyfills     | 128.51 kB
scripts.js          | scripts       |  76.67 kB
main.js             | main          |  12.35 kB
runtime.js          | runtime       |   6.63 kB

                    | Initial Total |   3.19 MB

Build at: 2021-08-14T12:47:44.417Z - Hash: f001123d671f4d692c5a - Time: 11454ms

** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ **


✔ Compiled successfully. Ready! Access the URL and check if the application is working. See the application working on and Stackblitz. 9. http://localhost:4200/ GitHub Pages The application repository is available at . https://github.com/rodrigokamada/angular-toastr This tutorial was posted on my in portuguese. blog

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Adding the notification component to an Angular application

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