Mongoose Merge Update with Lodash

MergeUpdate.js

import _ from 'lodash';

class MergeUpdate {
    save(original, update) {

        // Update timestamp manually
        if (original.updatedAt) {
            update.updatedAt = new Date().toISOString();
        }

        // Merge objects
        _.merge(original, update);

        // Save document
        return original.save();
    }
}

export default new MergeUpdate()