Advanced Pizza Service with Serializer

pizza.service.ts

export class PizzaService {

private url='http://pizzaService';
private endpoint = 'pizzas';
private serializer = new PizzaSerializer();

  constructor(
    protected httpClient: HttpClient) {}

  public create(pizza: Pizza): Observable<Pizza> {
    return this.httpClient
      .post<Pizza>(`${this.url}/${this.endpoint}`, this.serializer.toJson(pizza))
      .pipe(map(data => this.serializer.fromJson(data)));
  }

  public update(pizza: Pizza): Observable<Pizza> {
    return this.httpClient
      .put<Pizza>(`${this.url}/${this.endpoint}/${pizza.id}`, pizza)
      .pipe(map(data => this.serializer.fromJson(data)));
  }

  read(id: number): Observable<Pizza> {
    return this.httpClient
      .get<Pizza>(`${this.url}/${this.endpoint}/${id}`)
      .pipe(map(data => this.serializer.fromJson(data)));
  }

  list(): Observable<Pizza[]> {
    return this.httpClient
      .get<Pizza[]>(`${this.url}/${this.endpoint}`)
      .pipe(map(data => this.serializer.fromJson(data)))

  delete(id: number) {
    return this.httpClient
      .delete(`${this.url}/${this.endpoint}/${id}`);
  }
}