📁 Directory Router (dr)

dr (Directory Router) is a CLI tool for building Node.js API services using file-based routing, inspired by Next.js and Vercel's API route structure. It works with frameworks like Koa, Express, or Hono, and allows seamless development, build, and production deployment workflows.

✨ Features

• 📂 File-based routing for APIs

• 🛠 CLI commands: dev, build, start

• 📦 Bundling with esbuild

🧾 .drrc Config

A .drrc file should be located at the root of your API service.

{
  "root": "src",
  "outDir": ".dr",
  "engine": "koa"
}

Fields:

• root: Folder where API routes are defined

• outDir: Build output folder

• engine: Framework engine to use (e.g., koa)

🧪 Example Usage in Your API Project

📦 Install CLI tool

yarn add dr

⚙️ Install Your Engine

Make sure to also install the server engine defined in your .drrc (e.g., koa).

yarn add koa

Replace koa with express or hono if you're using a different engine.

🗂 Project Structure

api-service/
├── src/
│   └── api/
│       ├── hello.ts 
│       └── user/
│           └── profile.ts
├── .drrc
├── package.json
└── tsconfig.json

• 👟 Starting server in development mode: dr dev

🚀 Commands

🧑‍💻 dr dev

• Watches for file changes

• Hot reload on file update

🔨 dr build

• Uses esbuild to bundle API into .dr

• Retains API structure

🔥 dr start

• Runs the bundled .dr/server.js for production

🧠 Notes

• Ensure .drrc is correctly configured.

• You can use middleware or plugins later with .drrc extensions.

• Currently supports koa only.

📬 Feedback

Open an issue or feature request on the GitHub repo!