DrawDB Node.js Wrapper

This is a Node.js application that serves static files for the DrawDB frontend and provides an API to handle file operations for .ddb files.

Environment variables:

DRAWDB_FILE_DIR: Directory where .ddb files will be stored (default: /usercode).
DRAWDB_HOME: Path to the DrawDB frontend static files (default: ../dist).
DRAWDB_PORT: Port number for the app (default: 8080).

export DRAWDB_FILE_DIR=/some-dir-to-write-ddb-files
cd server
npm run dev

The server will be running at http://localhost:8080 (or the port specified by DRAWDB_PORT).