chanfana-openapi

What problem does it solve?

This skill enables developers to rapidly build type-safe REST APIs by deriving OpenAPI specifications directly from code using Chanfana, Hono, and Cloudflare Workers, eliminating manual YAML.

Core Features & Use Cases

• Automatic Swagger/OpenAPI generation from TypeScript route handlers with no separate YAML files.
• Built-in request validation using Zod and automatic error handling.
• Seamless edge deployment to Cloudflare Workers with composable middleware and security schemes.
• Use Case: Kick off a new API project and obtain live API docs, type-safe routes, and validation in minutes.

Quick Start

Install npm dependencies, initialize a Cloudflare Workers project, implement a minimal OpenAPIRoute using a simple schema, and run wrangler dev to view Swagger UI.