Thin Backend is a blazing fast, realtime backend for SPAs.
Instead of manually writing REST API endpoints or GraphQL resolvers, you can use a Thin Backend server to automatically get a fully feature web application backend. Thin gives you high level functions to create, read, update and delete database records.
Overall using Thin Backend has been one of the most delightful experiences I've had making an SPA with a simple backend. The developer experience with the generated TypeScript types is particularly awesome! - Ian Obermiller, Software Engineer, Netflix
Each of your Vercel projects will get its own Thin Backend project. You can either create a new project or use an existing project from your Thin account.
The integration sets the BACKEND_URL environment variable on your project. This environment variable is commonly used by Thin project templates to connect to the backend server.
If a project is based on Next.js, the environment variable will be called NEXT_PUBLIC_BACKEND_URL.