Feature Guard Angular

app-routing.modules.ts

const routes: Routes = [
  {
    path: 'en',
    children: allRoutes,
    canActivate: [FeaturesGuard],
    data: { feature: 'i18n' } as FeaturesGuardModel
  }
]

environment.prod.ts

export const environment: Environment = {
  features: {
    events: false,
    i18n: true,
    groups: true
  }
};

features-guard.service.ts

import { Injectable } from '@angular/core';
import { ActivatedRouteSnapshot, CanActivate, Router, UrlTree } from '@angular/router';
import { environment } from '../../../environments/environment';
import { Features } from '../../../environments/environment.interface';

export interface FeaturesGuardModel {
  feature: Feature;
}

type Feature = keyof Features;

@Injectable()
export class FeaturesGuard implements CanActivate {
  constructor(private router: Router) {}
  public canActivate(route: ActivatedRouteSnapshot): boolean | UrlTree {
    const data: Feature = route.data.feature;
    if (environment.features[data] === true) {
      return true;
    } else {
      return this.router.parseUrl('/');
    }
  }
}