add query parameters to a url

url.js

module.exports = (endpoint, query = {}) => {
  const queryEntries = Object.entries(query || {}).filter(([key, value]) => value || typeof value === 'boolean');
  return queryEntries.length
    ? `${endpoint}?${queryEntries
        .map(pair => pair.map(encodeURIComponent).join('='))
        .join('&')}`
    : endpoint;
};