@montevideo-tech/cmcd-validator/src/parser/parseHeaderToJson.js

This is a library created to validate CMCD

const parseHeaderToJSON = (headerString, extendedcmcdHeader, extendedKeyTypes) => {
  const pairs = headerString.split('\n');
  const result = {};
  pairs.forEach((pair) => {
    // eslint-disable-next-line prefer-const
    let [key, value] = pair.split(':');
    if (!extendedcmcdHeader[key]) {
      return;
    }
    value = value.replace(/ /g, '');
    const subPairs = value.split(',');
    subPairs.forEach((subPair) => {
      if (!subPair.includes('=')) {
        result[subPair] = true;
      } else {
        // eslint-disable-next-line prefer-const
        let [subKey, subValue] = subPair.split('=');
        subValue = (Number.isNaN(Number(subValue))) ? subValue.replace(/"/g, '') : Number(subValue);
        if (extendedKeyTypes[subKey] === 'boolean' && subValue === 'false') subValue = false;
        result[subKey] = subValue;
      }
    });
  });
  return result;
};

export default parseHeaderToJSON;