The sample demonstrates how to build a web document scanning app with Dynamic Web TWAIN and Node.js Express.
Apply for a valid license from Dynamsoft online portal and then update the license key in views/index.jade.
Dynamsoft.DWT.ProductKey = 'LICENSE-KEY';
Start the web server:
npm install
npm start
Visit localhost:3000 in a web browser.

Document Scanning and Uploading in Node.js with Express and Jade