app.component.ts

import { Component } from '@angular/core';
import { NginxlogService } from './nginxlog.service';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'app works!';
  constructor(private nginxlogService: NginxlogService) { }
}

app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { HttpModule } from '@angular/http';
import { RouterModule } from '@angular/router';

import { AppComponent } from './app.component';
import { AppRoutingModule } from './routing.module';
import { OneComponent } from './one/one.component';
import { TwoComponent } from './two/two.component';
import { NginxlogService } from './nginxlog.service';

@NgModule({
  declarations: [
    AppComponent,
    OneComponent,
    TwoComponent,
  ],
  imports: [
    BrowserModule,
    FormsModule,
    HttpModule,
    AppRoutingModule,
  ],
  providers: [NginxlogService],
  bootstrap: [AppComponent]
})
export class AppModule { }

nginxlog.service.ts

import { Injectable } from '@angular/core';
import { Router, NavigationEnd } from '@angular/router';

@Injectable()
export class NginxlogService {

  constructor(private router: Router) {
    router.events.subscribe(e => {
      if (e instanceof NavigationEnd) {
        //console.log(e['urlAfterRedirects']);
        let request = new XMLHttpRequest();
        request.open('OPTIONS', e['urlAfterRedirects'], true);
        request.send();
      }
    });
  }

}

routing.module.ts

import { NgModule }     from '@angular/core';
import { RouterModule } from '@angular/router';

import { OneComponent } from './one/one.component';
import { TwoComponent } from './two/two.component';

@NgModule({
  imports: [
    RouterModule.forRoot([
      { path: '', redirectTo: '/one', pathMatch: 'full' },
      { path: 'one', component: OneComponent },
      { path: 'two', component: TwoComponent }
    ])
  ],
  exports: [
    RouterModule
  ]
})
export class AppRoutingModule {}