getJSON

getJSON.js

/**
 * Get json from local machine
 * @param {String} filename on local machine
 * @returns {Promise} resolved object is JSON
 */
const getJSON = filename => {
  return new Promise((resolve, reject) => {
    fs.readFile(filename, (err, data) => {
      if (err) {
        reject(err);
      }
      try {
        resolve(JSON.parse(data));
      } catch (err) {
        reject(err);
      }
    });
  });
};