Not actively maintained anymore.
This is a sample application for the PayPal REST API Node.js SDK
If you're looking for a real world sample - check out rest-api-sample-app-nodejs.
Get your API credentials over at developer.paypal.com by creating a new application. Use these credentials in the config.json file.
The app uses standard PayPal test credentials at this very moment.
First, install all needed packages using npm install. Then run the app by using node app.js.
express - used as web-framework
jade - for HTML templating
paypal-rest-sdk - to handle PayPal payments
grunt - Runs tasks like JSHint validation
grunt-contrib-jshint - JSHint validation for JS files