D-Net

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

import { Injectable } from '@angular/core';

import { Observable } from 'rxjs';

import { OverviewData } from '../domain/overview-data';

const headerOptions = {

  headers : new HttpHeaders().set('Content-Type', 'application/json')

    .set('Accept', 'application/json'),

};

@Injectable ()

export class DataService {

  // private _jsonURl = environment.API_ENDPOINT + '/monitor/';

  // private _jsonURl = '/assets/json/';

  private _jsonURl = 'http://esperos.di.uoa.gr/oss.json';

  constructor(private httpClient: HttpClient) {

  }

  public getOverviewData(): Observable<OverviewData> {

    return this.httpClient.get<OverviewData>(this._jsonURl, headerOptions);

  }

  // public getOverviewData(): Observable<OverviewData> {

  //   return ;

  // }

}