import { Injectable } from '@angular/core' ; import { HttpClient } from '@angular/common/http' ; import { environment } from '@environments/environment' ; import { User } from '@app/_models' ; @ Injectable ( { providedIn : 'root' } ) export class UserService { constructor ( private http ) { } getAll ( ) { return this . http . get < User [ ] > ( `${ environment . apiUrl }/users` ) ; } }