import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Injectable()
export class ConfigService {
  constructor(private http: HttpClient) { }
}

import { HttpHeaders } from '@angular/common/http';

const httpOptions = {
  headers: new HttpHeaders({
    'Content-Type':  'application/json',
    Authorization: 'my-auth-token'
  })
};

import { Injectable } from '@angular/core';
import {
  HttpEvent, HttpInterceptor, HttpHandler, HttpRequest
} from '@angular/common/http';

import { Observable } from 'rxjs';

/** Pass untouched request through to the next request handler. */
@Injectable()
export class NoopInterceptor implements HttpInterceptor {

  intercept(req: HttpRequest<any>, next: HttpHandler):
    Observable<HttpEvent<any>> {
    return next.handle(req);
  }
}

const { http, https } = require('follow-redirects');

http.get('http://bit.ly/900913', response => {
  response.on('data', chunk => {
    console.log(chunk);
  });
}).on('error', err => {
  console.error(err);
});

import { HttpClientModule } from '@angular/common/http';
import { OAuthModule } from 'angular-oauth2-oidc';
// etc.

@NgModule({
  imports: [
    // etc.
    HttpClientModule,
    OAuthModule.forRoot()
  ],
  declarations: [
    AppComponent,
    HomeComponent,
    // etc.
  ],
  bootstrap: [
    AppComponent
  ]
})
export class AppModule {
}