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136 lines
1.9 KiB
Markdown
136 lines
1.9 KiB
Markdown
# Hono
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Hono [炎] - Tiny web framework for Cloudflare Workers and others.
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```js
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const app = Hono()
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app.get('/', () => 'Hono!!')
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app.fire()
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```
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## Feature
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- Fast - the router is implemented with Trie-Tree structure.
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- Tiny - use only standard API.
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- Portable - zero dependencies.
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- Optimized for Cloudflare Workers.
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## Install
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```sh
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$ yarn add hono
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```
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or
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```sh
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$ npm install hono
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```
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## Methods
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- app.**HTTP_METHOD**(path, ...callback)
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- app.**all**(path, ...callback)
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- app.**route**(path)
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- app.**before**(...callback)
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- app.**after**(...callback)
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## Routing
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### Basic
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`app.HTTP_METHOD`
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```js
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app.get('/', () => 'GET /')
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app.post('/', () => 'POST /')
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app.get('/wild/*/card', () => 'GET /wild/*/card')
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```
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`app.all`
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```js
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app.all('/hello', () => 'ALL Method /hello')
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```
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### Named Parameter
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```js
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app.get('/user/:name', (req) => {
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const name = req.params('name')
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...
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})
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```
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### Regexp
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```js
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app.get('/post/:date{[0-9]+}/:title{[a-z]+}', (req) => {
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const date = req.params('date')
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const title = req.params('title')
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...
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```
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### Chained Route
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```js
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app
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.route('/api/book')
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.get(() => 'GET /api/book')
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.post(() => 'POST /api/book')
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.put(() => 'PUT /api/book')
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```
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## Middleware
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```js
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const logger = (req, res, next) => {
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console.log(`[${req.method}] ${req.url}`)
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next()
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}
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const addHeader = (req, res, next) => {
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next()
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res.headers.add('X-message', 'This is addHeader middleware!')
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}
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app = app.use('*', logger)
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app = app.use('/message/*', addHeader)
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app.get('/message/hello', () => 'Hello Middleware!')
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```
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## Request
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### query
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```js
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app.get('/search', (req) => {
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const query = req.query('q')
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})
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```
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### params
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```js
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app.get('/entry/:id', (req) => {
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const id = req.params('id')
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})
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```
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## Related projects
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- itty-router <https://github.com/kwhitley/itty-router>
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- Sunder <https://github.com/SunderJS/sunder>
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- goblin <https://github.com/bmf-san/goblin>
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## Author
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Yusuke Wada <https://github.com/yusukebe>
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## License
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MIT
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