/Wiki/sources/honojs__hono/2026/https-hono-dev-llms-full-txt-usage-492647be7ffd-usage-s0187-c0000.md
Usage (1) - hono-docs
Usage (1) Source evidence: /Sources/raw/honojs hono/honojs hono.md Canonical citation: https://hono.dev/llms full.txt usage Summary ts const app = new Hono()...
Usage (1)
Source evidence: /Sources/raw/honojshono/honojshono.md Canonical citation: https://hono.dev/llms-full.txt#usage
Summary
## Content
```ts
const app = new Hono()
// CORS should be called before the route
app.use('/api/*', cors())
app.use(
'/api2/*',
cors({
origin: 'http://example.com',
allowHeaders: ['X-Custom-Header', 'Upgrade-Insecure-Requests'],
allowMethods: ['POST', 'GET', 'OPTIONS'],
exposeHeaders: ['Content-Length', 'X-Kuma-Revision'],
maxAge: 600,
credentials: true,
})
)
app.all('/api/abc', (c) => {
return c.json({ success: true })
})
app.all('/api2/abc', (c) => {
return c.json({ success: true })
})Multiple origins:
app.use(
'/api3/*',
cors({
origin: ['https://example.com', 'https://example.org'],
})
)
// Or you can use "function"
app.use(
'/api4/*',
cors({
// `c` is a `Context` object
origin: (origin, c) => {
return origin.endsWith('.example.com')
? origin
: 'http://example.com'
},
})
)
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