---

🎯 The Problem That's Killing Your Productivity

Every developer knows the pain:
- 📝 Writing API docs takes 5x longer than building the API
- 🔄 Docs become outdated the moment you deploy
- 🐛 Inconsistent documentation leads to integration nightmares
- ⏰ Deadlines missed because "we need to update the docs"
- 😤 Frustrated teammates dealing with undocumented endpoints

---

🔥 Why Developers Are Switching (and you should too)

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Spending hours writing YAML files, struggling with indentation errors, and manually updating schemas every time you change a field.

``javascript
/**
* @swagger
* /users:
* post:
* summary: Create a new user
* requestBody:
* required: true
* content:
* application/json:
* schema:
* type: object
* properties:
* name:
* type: string
* email:
* type: string
* format: email
* responses:
* 200:
* description: User created successfully
* content:
* application/json:
* schema:
* type: object
* properties:
* id:
* type: integer
* name:
* type: string
* email:
* type: string
*/
app.post('/users', (req, res) => {
// Your code here
});

`

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Just write your code. We handle the rest.

`javascript
app.post('/users', (req, res) => {
// Your code here
// Documentation generated automatically!
});

`

That's it. Seriously.

---

✨ The Solution That Changes Everything

doc-it-up is the revolutionary middleware that:

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* Zero configuration - Just plug and play
* Automatic schema detection from real requests & responses
* Live documentation that updates itself instantly
* Swagger/OpenAPI 3.0 compliance out of the box

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#### 🎪 Magic Middleware

Drop it in, and it works. We support Express, Fastify, Koa, Hono, Elysia, and Hapi.

#### 🌟 Intelligent Schema Detection

We analyze your JSON bodies to build precise types automatically:

`javascript
// Automatically detects and documents:
{
"user": {
"name": "string",
"email": "string (email format)",
"createdAt": "string (date-time format)",
"preferences": {
"theme": "string",
"notifications": "boolean"
}
}
}

`

#### 🔐 Advanced Authentication Support

* Bearer tokens
* API keys
* Basic auth
* Custom authentication schemes
* Automatic security documentation

#### 📁 File Upload Documentation

Automatically handles multipart/form-data. We document:

* File type validation
* Size limits
* Multiple file support
* Swagger UI file upload interface (Yes, you can upload files directly from the docs!)

#### 🎨 Beautiful UI

* Stunning Swagger UI included
* Interactive API explorer
* Real-time testing directly from docs
* Mobile-responsive design

---

🚀 Quick Start (30 seconds to glory)

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`bash
npm install doc-it-up

`

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We support them all. Import directly from the subpath for your framework to keep your bundle size small!

#### 🚀 Express

`javascript
import express from 'express';
import { expressMiddleware, expressHandler } from 'doc-it-up/express';

const app = express();

// 1. Register the magic middleware
app.use(expressMiddleware());

// 2. Your existing routes work as usual
app.get('/users', (req, res) => {
res.json({ users: [{ id: 1, name: 'John' }] });
});

// 3. Serve the docs
app.use('/docs', expressHandler());

app.listen(3000, () => {
console.log('📚 Docs available at http://localhost:3000/docs');
});

`

#### ⚡ Fastify

`javascript
import Fastify from 'fastify';
import docItUpPlugin from 'doc-it-up/fastify';

const fastify = Fastify();

// Register the plugin
await fastify.register(docItUpPlugin);

fastify.get('/hello', async () => {
return { hello: 'world' };
});

await fastify.listen({ port: 3000 });
console.log('📚 Docs available at http://localhost:3000/docs');

`

#### 🔥 Hono (Works on Cloudflare Workers, Bun, Node)

`javascript
import { Hono } from 'hono';
import { honoMiddleware, registerHonoDocs } from 'doc-it-up/hono';

const app = new Hono();

app.use('*', honoMiddleware());

app.get('/api', (c) => c.json({ message: 'Hello Hono!' }));

// Register /docs endpoints
registerHonoDocs(app);

export default app;

`

#### 🍃 Koa

`javascript
import Koa from 'koa';
import Router from '@koa/router';
import bodyParser from 'koa-bodyparser';
import { koaMiddleware, koaHandler } from 'doc-it-up/koa';

const app = new Koa();
const router = new Router();

app.use(bodyParser());
app.use(koaMiddleware());

router.get('/data', (ctx) => {
ctx.body = { status: 'success' };
});

// Serve docs
router.get('/docs', koaHandler());
router.get('/docs/swagger.json', koaHandler());

app.use(router.routes());
app.listen(3000);

`

#### 🦊 Elysia (Bun)

`javascript
import { Elysia } from 'elysia';
import { docItUpElysia } from 'doc-it-up/elysia';

new Elysia()
.use(docItUpElysia())
.get('/', () => 'Hello Elysia')
.listen(3000);

`

#### 🛠️ Hapi

`javascript
import Hapi from '@hapi/hapi';
import { hapiPlugin } from 'doc-it-up/hapi';

const init = async () => {
const server = Hapi.server({ port: 3000 });

await server.register(hapiPlugin);

server.route({
method: 'GET',
path: '/',
handler: () => 'Hello Hapi'
});

await server.start();
};
init();

`

---

🚨 NOTE: doc-it-up generates documentation based on actual requests. This is amazing for development! However, please ensure you review or secure your documentation routes before deploying to a public production environment to avoid exposing sensitive test data.

🎯 Advanced Features

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`javascript
// First request: { "name": "John" }
// Second request: { "name": "John", "age": 30 }
// doc-it-up automatically merges schemas intelligently to { "name": string, "age": integer }

`

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* Documentation updates automatically with each request
* No server restart required
* Schema versioning and change detection

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* JSON
* XML
* Form data
* File uploads
* Custom content types

📈 Performance Impact

| Metric | Impact |
| --- | --- |
| Request Latency | +0.1ms (Negligible) |
| Memory Usage | +2MB |
| CPU Overhead | <0.01% |
| Documentation Quality | ∞% better |

🔧 TypeScript Support

We provide full type definitions for every adapter!

`typescript
import { expressMiddleware } from 'doc-it-up/express';
// Types are inferred automatically!

`

🤝 Contributing

We're building the future of API documentation together!

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1. 🍴 Fork the repository
2. 🌟 Create a feature branch
3. 🔧 Make your changes
4. 📝 Add tests
5. 🚀 Submit a pull request

📄 License

MIT License - feel free to use this in your commercial projects!

🚀 Get Started Now

`bash
npm install doc-it-up

`

Join thousands of developers who've already made the switch to effortless API documentation!

---

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Making API documentation so easy, you'll forget it's there

🚀 Ready to revolutionize your API development? Install doc-it-up now and never write API documentation again!

`

``