Route multiple paths to same handler.

[msuntharesan]

I'm looking to see if it is possible to route multiple paths with duplicate params to the same handler
Eg:

const myHandler = (c) => {
  const { p1, prep1, postp1 } = c.req.param();
  return c.text(`${prep1}:${p1}:${postp1}`);
};

const app = new Hono()
  .get('/:p1', myHandler)
  .get('/:p1/static', myHandler)
  .get('/:prep1/:p1', myHandler)
  .get('/:p1/:postp1', myHandler);

[usualoma]

Hi, @msuntharesan!

When defined as follows

const app = new Hono()
  .get('/:prep1/:p1', myHandler)
  .get('/:p1/:postp1', myHandler)

The value of c.param('p1') is ambiguous for the following request.

app.request('http://localhost/path1/path2')

Therefore, the hono does not allow such routing definitions.

[msuntharesan]

Thank you for your answer

[yudai-nkt]

Hi I'm having a similar issue. The following code throws a duplicate param error:

import { Hono } from "hono";

new Hono()
  .get("/:id", (c) => c.text(`${c.req.param("id")} in root`))
  .get("/foo/:id", (c) => c.text(`${c.req.param("id")} in foo`))
  .request("/foo/bar");

file:///Users/ynkt/tmp/hono-route-common-key/node_modules/hono/dist/router/trie-router/node.js:56
              throw new Error(errorMessage(pattern[1]));
                    ^

Error: Duplicate param name, use another name instead of 'id' - GET /foo/:id <--- 'id'
    at Node.insert (file:///Users/ynkt/tmp/hono-route-common-key/node_modules/hono/dist/router/trie-router/node.js:56:21)
    at TrieRouter.add (file:///Users/ynkt/tmp/hono-route-common-key/node_modules/hono/dist/router/trie-router/router.js:16:15)
    at file:///Users/ynkt/tmp/hono-route-common-key/node_modules/hono/dist/router/smart-router/router.js:27:18
    at Array.forEach (<anonymous>)
    at SmartRouter.match (file:///Users/ynkt/tmp/hono-route-common-key/node_modules/hono/dist/router/smart-router/router.js:26:16)
    at Hono.matchRoute (file:///Users/ynkt/tmp/hono-route-common-key/node_modules/hono/dist/hono.js:145:24)
    at Hono.dispatch (file:///Users/ynkt/tmp/hono-route-common-key/node_modules/hono/dist/hono.js:156:25)
    at Hono.fetch (file:///Users/ynkt/tmp/hono-route-common-key/node_modules/hono/dist/hono.js:41:19)
    at Hono.request (file:///Users/ynkt/tmp/hono-route-common-key/node_modules/hono/dist/hono.js:53:25)
    at file:///Users/ynkt/tmp/hono-route-common-key/src/index.js:6:4

I understand the purpose of this error but don't think the routings registered in my example are ambiguous. Am I overlooking something?