Overview
Koa leverages async functions to eliminate callbacks and significantly increase error-handling capabilities. It does not bundle any middleware within its core, providing an elegant suite of methods that make writing servers fast and enjoyable.
Key Features
- Async/Await: Built from the ground up to use modern asynchronous patterns.
- No Middleware Bundled: A very small core, allowing developers to choose exactly what they need.
- Context Object: A unified object for handling requests and responses.
- Better Error Handling: Using try/catch with async middleware is much simpler than in Express.
Philosophy
Koa is designed for developers who want more control and a cleaner, more modern API than what Express offers.