The Express Problem

Express was built in 2010. No built-in validation. No TypeScript support. No schema documentation. And it's slow — 15K requests/sec vs. Fastify's 60K+.

Fastify is Express's modern replacement. JSON Schema validation, plugin architecture, TypeScript-first, 3x faster.

What Fastify Gives You

Simple API

import Fastify from ' fastify ' ;

const app = Fastify ({ logger : true });

app . get ( ' / ' , async () => { return { hello : ' world ' }; });

app . listen ({ port : 3000 });

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JSON Schema Validation (+ Auto Documentation)

app .…