Hono-Docs
Automated API Documentation
An open-source library that auto-generates interactive OpenAPI docs from Hono.js typed routes — zero config required
Understanding
the Problem
API documentation is one of the most tedious parts of backend development. Teams using Hono.js (a lightweight, ultrafast web framework) had no automated way to generate OpenAPI specifications from their typed routes. Developers were manually writing Swagger docs, which quickly fell out of sync with the actual API — leading to integration bugs and wasted time for frontend teams.
How We Built It
Built a TypeScript route parser that introspects Hono.js route definitions at build time, extracting HTTP methods, path parameters, query schemas, request/response bodies, and status codes
Developed a dynamic OpenAPI JSON generator that produces valid OpenAPI 3.0 and 3.1 specifications from the parsed route metadata — with zero manual configuration
Created a live route explorer UI that groups endpoints by tag, displays method badges, path templates, and expandable schema details for each route
Implemented automatic grouping and tagging system that organizes endpoints by route prefix, making large APIs navigable at a glance
Published the library as an npm package (@rcmade/hono-docs) with comprehensive README, usage examples, and TypeScript declarations for full IDE support
Ensured compatibility with Hono's ecosystem including middleware chains, grouped routes, and Zod schema validation decorators
Impact Delivered
IDCOLAB
Immersive 3D Visualisation
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