refresh-config refresh config when config file modified. Install npm install refresh-config Usage var Config = require('refresh-config'); var config = Config('./config.json'); config.on('error', function (err) { console.error(err.stack);})config.on('change', function () { console.log(config.data); // the new data object console.log(config.stale); // the stale object console.log(config.removed); // removed keys}); License MIT