user.service.ts

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { Person } from './person.model';
import { environment } from 'environments/environment';
import { StoreService } from 'app/core/services/store.service';

@Injectable({
  providedIn: 'root'
})
export class PersonService extends StoreService<Person> {
  constructor(
    protected http: HttpClient
  ) {
    super(
      http,
      {
        // url: environment.apiUrl + 'users/', Normally you use an environment variable to point to the api url
        url: 'https://jsonplaceholder.typicode.com/users/',
        idField: 'id',
        itemName: 'Person'
      }
    );
  }
}