Fastify is a fast Node.js web framework designed for high performance and low overhead. It emphasizes schema-based validation and serialization using JSON Schema, a lightweight plugin architecture for modular features, and an efficient hook-based lifecycle for request handling. Built-in support for async/await, rich logging via Pino, and strong typing with TypeScript improve reliability and observability. Routing is concise, with automatic schema-based input/output validation, standardized error handling, and an extensible ecosystem of plugins to add functionality without compromising speed.

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Fastify

High-performance Node.js web framework with low overhead and plugins

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