Fastify is an open-source Node.js web framework that remains focused on providing excellent developer experience, minimal performance overhead, and a flexible plugin architecture.
Fastifyβs development efforts are focused on six main features and principles. First, as its name suggests, Fastify is focused on speed, and can currently serve up to 30,000 requests per second.
Fastify provides extensibility via hooks, plugins, and decorators.
The Fastify project strongly recommends the option of using JSON Schema to validate routes and serialize outputs to improve performance and accuracy.