@vtmap/vtmap-sdk-js/lib/helpers/parse-headers.js

JS SDK for accessing Viettelmaps APIs

'use strict';

function parseSingleHeader(raw) {
  var boundary = raw.indexOf(':');
  var name = raw
    .substring(0, boundary)
    .trim()
    .toLowerCase();
  var value = raw.substring(boundary + 1).trim();
  return {
    name: name,
    value: value
  };
}

/**
 * Parse raw headers into an object with lowercase properties.
 * Does not fully parse headings into more complete data structure,
 * as larger libraries might do. Also does not deal with duplicate
 * headers because Node doesn't seem to deal with those well, so
 * we shouldn't let the browser either, for consistency.
 *
 * @param {string} raw
 * @returns {Object}
 */
function parseHeaders(raw) {
  var headers = {};
  if (!raw) {
    return headers;
  }

  raw
    .trim()
    .split(/[\r|\n]+/)
    .forEach(function(rawHeader) {
      var parsed = parseSingleHeader(rawHeader);
      headers[parsed.name] = parsed.value;
    });

  return headers;
}

module.exports = parseHeaders;