import { Injectable } from '@angular/core'; import { HttpClient, HttpParams } from '@angular/common/http'; import { Observable } from 'rxjs'; import { SERVER_API_URL } from 'app/app.constants'; @Injectable({ providedIn: 'root' }) export class ActivateService { constructor(private http: HttpClient) {} get(key: string): Observable { return this.http.get(SERVER_API_URL + 'api/activate', { params: new HttpParams().set('key', key) }); } }