@adobe/helix-fetch/src/headers.js

Helix Fetch Library

/*
 * Copyright 2020 Adobe. All rights reserved.
 * This file is licensed to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. You may obtain a copy
 * of the License at http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
 * OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */

'use strict';

const { Headers } = require('fetch-h2');

/**
 * Return the headers as a plain object/
 *
 * @param {Headers} headers
 * @returns {Object}
 */
const headersAsObject = (headers) => {
  const obj = {};
  for (const [key, value] of headers.entries()) {
    obj[key] = value;
  }
  return obj;
};

/**
 * Decorate the headers with extensions
 */
const decorateHeaders = (headers) => {
  const hdrs = new Headers(headers);
  hdrs.raw = () => headersAsObject(hdrs);
  return hdrs;
};

module.exports = { headersAsObject, decorateHeaders };