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Fastify Zod

A fluent, type-safe validation and request lifecycle layer for Fastify using Zod.

Fastify Zod

Overview

Fastify Zod provides a fluent API for building Fastify routes with fully typed schemas, pre-handlers, and custom validation checks powered by Zod. It allows developers to define request schemas, chain multiple pre-handlers for authorization or side effects, and apply flexible validation logic using single or multiple check functions. With end-to-end type inference, request bodies, params, and queries remain strongly typed throughout the request lifecycle, resulting in safer, cleaner, and more maintainable APIs.

Tech Stack

backend

TypeScriptFastifyZod

Tags

#TypeScript#Fastify#Zod#Validation#API#NPM Package