Play with BaseRequestOptions in Angular2

app.request.ts

import { Injectable, Inject } from '@angular/core';
import { BaseRequestOptions, RequestOptions, Headers, RequestOptionsArgs } from '@angular/http';

@Injectable()
export class AppRequestOptions extends BaseRequestOptions {
  constructor() {
    super();
  }  

   merge(options?:RequestOptionsArgs):RequestOptions {
       let authData = localStorage.getItem('authorizationData');
       let header = new Headers();
       header.append('Authorization', `Bearer ${authData}`);
       options.headers =header;                     
        var result = super.merge(options);
        result.merge = this.merge;
        return result;
    }
}

export const requestOptionsProvider = { provide: RequestOptions, useClass: AppRequestOptions };

Any chance on showing how it's used?