Hono Validation Patterns

Overview

Hono provides a lightweight built-in validator and integrates seamlessly with popular validation libraries like Zod, TypeBox, and Valibot. Validation happens as middleware, providing type-safe access to validated data in handlers.

Key Features:

• Built-in lightweight validator
• First-class Zod integration via @hono/zod-validator
• Standard Schema support (works with any validation library)
• Type inference from validation schemas
• Validates: JSON, forms, query params, headers, cookies, path params

When to Use This Skill

Use Hono validation when:

• Validating API request bodies (JSON, form data)
• Ensuring query parameters meet requirements
• Validating authentication headers