type npm link mony-date at api-gateway folder or another service folder.
Setup NPM Install
install all modules : Create file .npmrc in root project directory and fill with this registry = http://npm.harmony.co.id and type npm install.
Publish this package : npm version <release or beta version number (1.0.0 or 1.0.0-beta.0)>
For use this package in other project : Create file .npmrc in root project directory and fill with this registry = http://npm.harmony.co.id and type npm install mony-date to get latest release version or npm install mony-date@version at api-gateway project or another node project.