main.ts

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './app.module';

import {KeycloakService} from './keycloak.service';

KeycloakService.init()
  .then(() => {
    const platform = platformBrowserDynamic();
    platform.bootstrapModule(AppModule);
  })
  .catch(() => window.location.reload());