Hono

Hono (炎) is a small, simple, and ultrafast web framework for the edge computing era. It's designed to work in various JavaScript runtimes including Cloudflare Workers, Deno, and Node.js.

Key Features

Ultrafast Performance

Zero dependencies
Minimal overhead
Optimized for edge computing
TypeScript-first development

Runtime Compatibility

Cloudflare Workers
Deno
Node.js
Bun
AWS Lambda

Built-in Features

Routing: Path parameters and pattern matching
Middleware: Composable middleware system
Body Parsing: JSON, form data, and multipart
Type Safety: Full TypeScript support

Core Concepts

Basic Routing

import { Hono } from 'hono'
 
const app = new Hono()
 
app.get('/', (c) => c.text('Hello Hono!'))
app.post('/users', (c) => c.json({ message: 'Created' }))

Middleware

const auth = async (c, next) => {
  if (!c.req.header('Authorization')) {
    return c.text('Unauthorized', 401)
  }
  await next()
}
 
app.use('/api/*', auth)

Request Handling

app.post('/upload', async (c) => {
  const body = await c.req.parseBody()
  const file = body['file']
  return c.json({
    filename: file.name,
    size: file.size
  })
})

Best Practices

Project Structure
- Organize routes by feature
- Separate middleware logic
- Use TypeScript for better type safety
Error Handling
- Implement global error handlers
- Use built-in error responses
- Create custom error types
Performance
- Leverage edge computing capabilities
- Implement proper caching strategies
- Optimize response times
Security
- Implement CORS properly
- Use security headers
- Validate user input

Getting Started

# Using npm
$ npm install hono
 
# Using yarn
$ yarn add hono
 
# Using pnpm
$ pnpm add hono

Basic Example

import { serve } from '@hono/node-server'
import { Hono } from 'hono'
 
const app = new Hono()
 
app.get('/', (c) => c.text('Hello Hono!'))
 
serve(app)

Common Use Cases

REST API development
Edge computing applications
Serverless functions
Microservices
Static file serving

Additional Resources

NestJS Django