To learn how to use the Scheduler component with Node.js please see the following tutorial:
https://code.daypilot.org/95340/react-activity-planning-system-node-express-postgresql
Also, please note that the Scheduler component is only included in the Pro version which is paid. The list of features available in the Lite (free) and Pro (paid) versions is available here:
https://javascript.daypilot.org/feature-matrix/