DigitalOcean's serverless Functions-as-a-Service (FaaS) offering, powered by Apache OpenWhisk. Functions execute event-driven code in response to HTTP requests or scheduled triggers without managing servers. Supports Node.js, Python, PHP, and Go with automatic scaling to zero.
A media startup uses DigitalOcean Functions to process image uploads asynchronously. When a user uploads a photo to Spaces, an event triggers a Function that resizes the image to multiple dimensions and stores thumbnails back in Spaces — with no servers running when uploads are idle.