angular

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

@Injectable({
  providedIn: 'root'
})
export class HistorianAPIService {

  access_token = 'eyJhbGciOiJSUzI1NiJ9.eyJqs8V38Q';

  headers = new HttpHeaders({
    'Authorization': `Bearer ${this.access_token}`,
    'mode': 'cors'
  });

  private server_url = `http://10.1.1.31:80/historian-rest-api/v1/tags?nameMask=*&maxNumber=100`;

  constructor(private http: HttpClient) { }

  checkHistorianAPI() {
    return this.http.get(this.server_url, { headers: this.headers });
  }

}