Fastify - Fast web framework with batteries attached & amazing TypeScript support - Mike Borozdin - April 2023
Fastify's remarkable features include native TypeScript support, providing enhanced type safety and productivity during development. By leveraging TypeScript, developers can ensure type correctness in request and response bodies, query string parameters, and even custom HTTP headers. This type safety extends to runtime as well, thanks to Fastify's built-in JSON schema validation, which guarantees the validity of incoming data, enhancing security and stability.