Adding the map TomTom component to an Angular application
Tags: angular, map, beginners, tutorial
Published: 2021-12-13 14:01:05

# Introduction

[Angular](https://angular.io/) 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.

[@tomtom-international/web-sdk-maps](https://www.npmjs.com/package/@tomtom-international/web-sdk-maps) is a library that hides the complexity of integration with TomTom services, boosting the productivity with fully styleable and easily customized components.



# Prerequisites


Before you start, you need to install and configure the tools:

* [git](https://git-scm.com/)
* [Node.js and npm](https://nodejs.org/)
* [Angular CLI](https://angular.io/cli)
* IDE (e.g. [Visual Studio Code](https://code.visualstudio.com/))



# Getting started


## Create and configure the account on the TomTom


**1.** Let's create the account. Access the site [https://www.tomtom.com/](https://www.tomtom.com/), click on the menu *Developers* and click on the submenu *Developer portal*.

![TomTom - Home page](https://res.cloudinary.com/rodrigokamada/image/upload/v1639316809/Blog/angular-tomtom/tomtom-step1.png)

**2.** Click on the button *REGISTER*.

![TomTom - Developer portal](https://res.cloudinary.com/rodrigokamada/image/upload/v1639317617/Blog/angular-tomtom/tomtom-step2.png)

**3.** Fill in the fields *Full name*, *Username*, *Email*, *Password*, click on the checkbox *I have read and agreed with the terms and conditions for using Maps APIs.* and click on the button *REGISTER*.

![TomTom - Register](https://res.cloudinary.com/rodrigokamada/image/upload/v1639317618/Blog/angular-tomtom/tomtom-step3.png)

**4.** Check the registered email.

![TomTom - Check email](https://res.cloudinary.com/rodrigokamada/image/upload/v1639318444/Blog/angular-tomtom/tomtom-step4.png)

**5.** Click on the button *ACTIVATE ACCOUNT* in the email sent.

![TomTom - Activate account](https://res.cloudinary.com/rodrigokamada/image/upload/v1639318653/Blog/angular-tomtom/tomtom-step5.png)

**6.** Click on the link *MY DASHBOARD*.

![TomTom - Let's start building](https://res.cloudinary.com/rodrigokamada/image/upload/v1639319263/Blog/angular-tomtom/tomtom-step6.png)

**7.** Copy the key displayed in the *Keys* menu and, in my case, the key `POQwSkANG2wVgN1qMbook38s5EMkN7pG` was displayed because this key will be configured in the Angular application.

![TomTom - Keys](https://res.cloudinary.com/rodrigokamada/image/upload/v1639319267/Blog/angular-tomtom/tomtom-step7.png)

**8.** Ready! Account created and key generated.


## Create the Angular application

**1.** Let's create the application with the Angular base structure using the `@angular/cli` with the route file and the SCSS style format.

```powershell
ng new angular-tomtom --routing true --style scss
CREATE angular-tomtom/README.md (1059 bytes)
CREATE angular-tomtom/.editorconfig (274 bytes)
CREATE angular-tomtom/.gitignore (620 bytes)
CREATE angular-tomtom/angular.json (3255 bytes)
CREATE angular-tomtom/package.json (1078 bytes)
CREATE angular-tomtom/tsconfig.json (863 bytes)
CREATE angular-tomtom/.browserslistrc (600 bytes)
CREATE angular-tomtom/karma.conf.js (1431 bytes)
CREATE angular-tomtom/tsconfig.app.json (287 bytes)
CREATE angular-tomtom/tsconfig.spec.json (333 bytes)
CREATE angular-tomtom/.vscode/extensions.json (130 bytes)
CREATE angular-tomtom/.vscode/launch.json (474 bytes)
CREATE angular-tomtom/.vscode/tasks.json (938 bytes)
CREATE angular-tomtom/src/favicon.ico (948 bytes)
CREATE angular-tomtom/src/index.html (299 bytes)
CREATE angular-tomtom/src/main.ts (372 bytes)
CREATE angular-tomtom/src/polyfills.ts (2338 bytes)
CREATE angular-tomtom/src/styles.scss (80 bytes)
CREATE angular-tomtom/src/test.ts (745 bytes)
CREATE angular-tomtom/src/assets/.gitkeep (0 bytes)
CREATE angular-tomtom/src/environments/environment.prod.ts (51 bytes)
CREATE angular-tomtom/src/environments/environment.ts (658 bytes)
CREATE angular-tomtom/src/app/app-routing.module.ts (245 bytes)
CREATE angular-tomtom/src/app/app.module.ts (393 bytes)
CREATE angular-tomtom/src/app/app.component.scss (0 bytes)
CREATE angular-tomtom/src/app/app.component.html (23364 bytes)
CREATE angular-tomtom/src/app/app.component.spec.ts (1097 bytes)
CREATE angular-tomtom/src/app/app.component.ts (219 bytes)
✔ Packages installed successfully.
    Successfully initialized git.
```

**2.** Install and configure the Bootstrap CSS framework. Do steps 2 and 3 of the post *[Adding the Bootstrap CSS framework to an Angular application](https://dev.to/rodrigokamada/adding-the-bootstrap-css-framework-to-an-angular-application-2k40)*.

**3.** Configure the TomTom key in the `src/environments/environment.ts` and `src/environments/environment.prod.ts` files as below.

```typescript
tomtom: {
  key: 'POQwSkANG2wVgN1qMbook38s5EMkN7pG',
},
```

**4.** Install the `@tomtom-international/web-sdk-maps` library.

```powershell
npm install @tomtom-international/web-sdk-maps
```

**5.** Configure the `@tomtom-international/web-sdk-maps` library. Change the `angular.json` file and add the `maps.css` file as below.

```json
"styles": [
  "node_modules/bootstrap/scss/bootstrap.scss",
  "node_modules/bootstrap-icons/font/bootstrap-icons.css",
  "node_modules/@tomtom-international/web-sdk-maps/dist/maps.css",
  "src/styles.scss"
],
```

**6.** Remove the contents of the `AppComponent` class from the `src/app/app.component.ts` file. Create the `getCurrentPosition` and `loadMap` methods as below.

```typescript
import { AfterViewInit, Component } from '@angular/core';
import { Observable, Subscriber } from 'rxjs';
import * as tt from '@tomtom-international/web-sdk-maps';

import { environment } from '../environments/environment';

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

  map: any;

  constructor() {
  }

  public ngAfterViewInit(): void {
    this.loadMap();
  }

  private getCurrentPosition(): any {
    return new Observable((observer: Subscriber<any>) => {
      if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition((position: any) => {
          observer.next({
            latitude: position.coords.latitude,
            longitude: position.coords.longitude,
          });
          observer.complete();
        });
      } else {
        observer.error();
      }
    });
  }

  private loadMap(): void {
    this.map = tt.map({
      key: environment.tomtom.key,
      container: 'map',
    });

    this.map.addControl(new tt.FullscreenControl());
    this.map.addControl(new tt.NavigationControl());

    this.getCurrentPosition()
    .subscribe((position: any) => {
      this.map.flyTo({
        center: {
          lat: position.latitude,
          lng: position.longitude,
        },
        zoom: 13,
      });

      const popup = new tt.Popup({ anchor: 'bottom', offset: { bottom: [0, -40] } }).setHTML('Angular TomTom');
  
      var marker = new tt.Marker().setLngLat({
        lat: 37.7749,
        lng: -122.4194,
      }).addTo(this.map);
      marker.setPopup(popup).togglePopup();
    });
  }

}
```

**7.** Remove the contents of the `src/app/app.component.html` file. Add the map `div` tag as below.

```html
<div class="container-fluid py-3">
  <h1>Angular TomTom</h1>

  <div id="map" class="map"></div>
</div>
```

**8.** Add the style in the `src/app/app.component.scss` file as below.

```css
#map {
  height: 400px;
  width: 100%;
  max-width: 600px;
}
```

**9.** Run the application with the command below.

```powershell
npm start

> angular-tomtom@1.0.0 start
> ng serve

✔ Browser application bundle generation complete.

Initial Chunk Files   | Names         |  Raw Size
vendor.js             | vendor        |   3.66 MB | 
styles.css, styles.js | styles        | 521.05 kB | 
polyfills.js          | polyfills     | 339.20 kB | 
scripts.js            | scripts       |  76.33 kB | 
main.js               | main          |  10.36 kB | 
runtime.js            | runtime       |   6.86 kB | 

                      | Initial Total |   4.59 MB

Build at: 2021-12-12T17:33:13.265Z - Hash: e4a77c4fe28aa482 - Time: 4248ms

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


✔ Compiled successfully.
```

**Note:**

* If the error `Module '"/node_modules/@types/geojson/index"' has no default export. Did you mean to use 'import { GeoJSON } from "/node_modules/@types/geojson/index"' instead?` occurs, add the setting `allowSyntheticDefaultImports` in the `tsconfig.json` file as below.

```typescript
{
  "compilerOptions": {
    "allowSyntheticDefaultImports": true
  }
}
```

**10.** Ready! Access the URL `http://localhost:4200/` and check if the application is working. See the application working on [GitHub Pages](https://rodrigokamada.github.io/angular-tomtom/) and [Stackblitz](https://stackblitz.com/edit/angular14-tomtom).

![Angular TomTom](https://res.cloudinary.com/rodrigokamada/image/upload/v1639351457/Blog/angular-tomtom/angular-tomtom.png)


The application repository is available at [https://github.com/rodrigokamada/angular-tomtom](https://github.com/rodrigokamada/angular-tomtom).

This tutorial was posted on my [blog](https://rodrigo.kamada.com.br/blog/adicionando-o-componente-de-mapa-tomtom-em-uma-aplicacao-angular) in portuguese.