> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/honojs/hono/llms.txt
> Use this file to discover all available pages before exploring further.
# Accepts Helper
> Content negotiation based on Accept headers
The Accepts Helper provides content negotiation functionality based on HTTP Accept headers.
## Import
```typescript theme={null}
import { accepts } from 'hono/accepts'
```
## Functions
### accepts()
Determine the best match for the given Accept header.
```typescript theme={null}
function accepts(c: Context, type: string | string[]): string | null
```
The context object
The content type(s) to match against
The best matching content type or null if no match
**Example**
```typescript theme={null}
import { accepts } from 'hono/accepts'
app.get('/data', (c) => {
const accept = accepts(c, ['application/json', 'text/html'])
if (accept === 'application/json') {
return c.json({ data: 'value' })
} else if (accept === 'text/html') {
return c.html('...')
}
return c.text('Not Acceptable', 406)
})
```
## Advanced Usage
```typescript theme={null}
import { accepts } from 'hono/accepts'
// Language negotiation
app.get('/', (c) => {
const lang = accepts(c, ['en', 'ja', 'fr'])
return c.text(`Language: ${lang}`)
})
// Compression negotiation
app.get('/file', (c) => {
const encoding = accepts(c, ['gzip', 'deflate', 'br'])
// Use the preferred encoding
})
```