We recently published a tutorial on how to build a production-ready photo gallery web service using Node.JS and Dropbox.

In the step-by-step guide, you’ll learn about all the technologies required to implement a web service that will allow you to nicely display images stored in your Dropbox account in a photo gallery.  We cover topics such as authentication to Dropbox via OAuth, app folder access Dropbox permissions, photo rendering using a JavaScript library called Galleria, and code deployment on Heroku for production.