/Knowledge/sources/honojs__hono/llms-full/routing-optional-parameter--9154db67d478.md
Routing: Optional Parameter - hono-docs
Routing: Optional Parameter Source evidence: /Sources/honojs hono/provenance.md Canonical citation: https://hono.dev/llms full.txt optional parameter Summary...
Routing: Optional Parameter
Source evidence: /Sources/honojs__hono/provenance.md Canonical citation: https://hono.dev/llms-full.txt#optional-parameter
Summary
ts twoslash import { Hono } from 'hono' const app = new Hono() // ---cut--- // Will match `/api/animal` and `/api/animal/:type` app.get('/api/animal/:type?', (c) => c.text('Animal!'))
Content
import { Hono } from 'hono'
const app = new Hono()
// ---cut---
// Will match `/api/animal` and `/api/animal/:type`
app.get('/api/animal/:type?', (c) => c.text('Animal!'))
Metadata
{
"chunk_index": 0,
"citation": "https://hono.dev/llms-full.txt#optional-parameter",
"coverage_role": "overview",
"qualified_title": "Hono / llms-full / Routing > Optional Parameter",
"retrieved_at": "2026-07-02T05:51:01Z",
"section_index": 594,
"source_id": "/honojs/hono",
"source_type": "llms_full",
"target_label": "llms-full",
"title": "Routing: Optional Parameter",
"upstream_url": "https://hono.dev/llms-full.txt",
"version": "2026"
}
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