src/app/shared/async-services/http/http.adapter.ts

 /********************************************************************************
 * Copyright (c) 2020 Contributors to the Eclipse Foundation
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0
 ********************************************************************************/
import { Response } from '@angular/http';

export class HttpAdapter {
  static baseAdapter(res: Response, adapterFn?: Function): any {
    if (res.status === 200) {
      try {
        const jsonRes: any = res.json();
        return adapterFn ? adapterFn.call(undefined, jsonRes) : jsonRes;
      } catch (e) {
        return res;
      }
    }
  }
}