什么是 Fly.io？

This article introduces how to build production-grade REST APIs using Dart and Serverpod, compares the development philosophy of Serverpod with traditional manual approaches (like Shelf), and demonstrates the full workflow from project creation to code generation, model definition, and API implementation.

You can build production-grade REST APIs using Dart and Shelf without learning a new language or framework. The article demonstrates building a full user and profile management backend from scratch, connecting to PostgreSQL via Docker, securing with JWT, and deploying to Fly.io.