filter-object-fields/index.js

Utility to filter out disallowed fields from objects like req.body

// index.js

/**
 * Filters out disallowed fields from an object.
 * @param {Object} obj - The object to filter (e.g., req.body)
 * @param {...string} disallowedFields - Fields to exclude
 * @returns {Object} - New filtered object
 */
const filterObject = (obj, ...disallowedFields) => {
  const filtered = {};
  Object.keys(obj).forEach(key => {
    if (!disallowedFields.includes(key)) {
      filtered[key] = obj[key];
    }
  });
  return filtered;
};

module.exports = filterObject;