import { HttpRequest, HttpResponse } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { NaCache } from './na-cache';

@Injectable({
  providedIn: 'root'
})
export abstract class NaHttpCache extends NaCache {
  /**
   * Returns a cached response, if any, or null if not present.
   */
  abstract get(req: HttpRequest<any>): HttpResponse<any> | null;

  /**
   * Adds or updates the response in the cache.
   */
  abstract put(req: HttpRequest<any>, resp: HttpResponse<any>): void;
}