Angular 5 with Font Awesome 5

After some researches including the read of [Font Awesome 5 with Angular ][1], [documentation][1], etc I wasn't able to advance in the integration between Angular 5 App and Font-Awesome 5 (Pro).

Problem: Icons don't appear.

More detailed information about my current scenario:

package.json:

(...)
"dependencies": {
"@angular/animations": "^5.2.4",
"@angular/common": "^5.2.4",
"@angular/compiler": "^5.2.4",
"@angular/core": "^5.2.4",
"@angular/forms": "^5.2.4",
"@angular/http": "^5.2.4",
"@angular/platform-browser": "^5.2.4",
"@angular/platform-browser-dynamic": "^5.2.4",
"@angular/router": "^5.2.4",
"@fortawesome/fontawesome": "^1.1.3",
"@fortawesome/fontawesome-pro-light": "^5.0.6",
"bootstrap": "^4.0.0",
"classlist.js": "^1.1.20150312",
"core-js": "^2.5.3",
"jquery": "^3.3.1",
"jquery-ui": "^1.12.1",
"popper.js": "^1.12.9",
"prismjs": "^1.11.0",
"rxjs": "^5.5.6",
"summernote": "^0.8.9",
"sweetalert2": "^7.11.0",
"web-animations-js": "^2.3.1",
"zone.js": "^0.8.20"
},
"devDependencies": {
"@angular/cli": "^1.7.0-rc.0",
"@angular/compiler-cli": "^5.2.4",
"@angular/language-service": "^5.2.4",
"@types/jasmine": "^2.8.6",
"@types/jasminewd2": "^2.0.3",
"@types/node": "^9.4.5",
"codelyzer": "^4.1.0",
"jasmine-core": "^2.99.1",
"jasmine-spec-reporter": "^4.2.1",
"karma": "^2.0.0",
"karma-chrome-launcher": "^2.2.0",
"karma-cli": "^1.0.1",
"karma-coverage-istanbul-reporter": "^1.4.1",
"karma-jasmine": "^1.1.1",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "^5.3.0",
"ts-node": "^4.1.0",
"tslint": "^5.9.1",
"typescript": "^2.7.1"
}
(...)

angular-cli.json

    (...)
    "scripts": [
    "../node_modules/jquery/dist/jquery.min.js",
    "../node_modules/popper.js/dist/umd/popper.js",
    "../node_modules/bootstrap/dist/js/bootstrap.min.js",
    "../node_modules/jquery-ui/ui/data.js",
    "../node_modules/jquery-ui/ui/disable-selection.js",
    "../node_modules/jquery-ui/ui/scroll-parent.js",
    "../node_modules/jquery-ui/ui/widget.js",
    "../node_modules/jquery-ui/ui/widgets/mouse.js",
    "../node_modules/jquery-ui/ui/widgets/sortable.js",
    "../node_modules/sweetalert2/dist/sweetalert2.min.js",
    "../node_modules/summernote/dist/summernote.min.js",
    "../node_modules/@fortawesome/fontawesome/index.js (tried with and without this file)"
  ], (...)

During my researches I've understand that I need to specify what (icons) I need to use, as bellow:

import {faChevronLeft, faChevronRight} from '@fortawesome/fontawesome-free-solid';
import fontawesome from '@fortawesome/fontawesome';

Then I need to pass those icons to fontawesome object:

fontawesome.library.add(faChevronLeft, faChevronRight);

And finally I've discovered (in the [font-awesome documentation][1] that I would need the call for i2svg method that is responsible to make the magic happens:

fontawesome.dom.i2svg();

Documentation says I must call the method without parameters. But the compiler point me to another direction where I must inform the following data:

export interface DOM {
  i2svg(params: { node: Node; callback: () => void }): void;
  css(): string;
  insertCss(): string;
}

The maximum I've achieved so far is a log in the browser made by font-awesome with the following information "fontawesome.dom.i2svg()" after this code:

fontawesome.dom.i2svg({ node: document.body, callback: callbacki2Svr });

function callbacki2Svr() { }

I've tried a lot (null results in "Uncaught TypeError: Cannot read property 'querySelectorAll' of null") and now I'm unable to advance. Does anyone have a suggestions?

Installation:

1) Followed the instructions on [use node js][2] ([TOKEN] is the key I've received from purchase):

 npm i --save @fortawesome/fontawesome
 npm config set @fortawesome:registry https://npm.fontawesome.com/[TOKEN]

 Created a .npmrc file in the root of my project with the following content:
 @fortawesome:registry=https://npm.fontawesome.com/[TOKEN]
 npm i --save @fortawesome/fontawesome-pro-light

2) updated angular-cli 3) rebuild the application using (ng b -aot) 4) started the project.

Thank you in advance!

Sample HTML Codes Login Page (no "i" tag)

<div class="login-page">
  <div class="wrapper-login">
    <img src="assets/image/logo/horizontal-bew.svg" />
    <raptor-textbox #txtUser type="text" iconClass="fa fa-user-o" iconPosition="right" placeholder="Login"
                [(value)]="userName" (onKeyUp)="updateUserName($event)" (onEnterPressed)="userKeyEnter()"></raptor-textbox>
    <raptor-textbox #txtPwd type="password" iconClass="fa fa-key" iconPosition="right" placeholder="Senha"
                [value]="pwd" (onKeyUp)="updatePwd($event)" (onEnterPressed)="pwdKeyEnter()"></raptor-textbox>
     <raptor-button cssClass="btn btn-light btn-block" text="Entrar" (click)="authenticate()"></raptor-button>
     <a [attr.href]="'#loginModal'" data-toggle="modal" [attr.data-target]="'#loginModal'">Forgot Password</a>
  </div>
</div>

<raptor-modal title="Forgot Password"
          icon="fa fa-envelope-o"
          cssClass="fade"
          classModal="modal-dialog modal-dialog-centered"
          modalId="loginModal"
          (onSavedClicked)="saveForm($event)"
          (onCancelClicked)="cancelModal($event)">

  <div class="row">
    <div class="form-group col-12">
      <label>Email</label>
      <raptor-textbox type="email" typeValue="email" applyValidation="true" applyMask="true" icon="fa fa-envelope" iconPosition="right" placeholder="E-mail..."></raptor-textbox>
    </div>
  </div>
</raptor-modal>

Raptor Button (with "i" tag)

<button type="button" [class]="cssClass" (click)="click()" [attr.data-target]="dataTarget" [attr.disabled]="isDisabled ?'' : null">
  <i *ngIf="hasIcon()" class="{{ icon }}"></i><span>{{ text }}</span>
</button>

/**
* verify if icon was defined
* @hasIcon
*
*/
public hasIcon() {
  return this.icon && this.icon.length > 0;
}

[1]: https://fontawesome.com/how-to-use/font-awesome-api
[2]: https://fontawesome.com/how-to-use/use-with-node-js