How to accept parameters from base path ?

[sterlinghagoromo]

Say I have an API like this:
PATCH /:storeId/products/:productId

For codebase management reasons I'm trying to setup hono so that my core routing file has all the base API paths, and then each major group of routes has their local paths only. However that breaks type inference for RPC usage if I leave parameters in the base path. I there some better way of doing this correctly ? or is it part of Hono's philosophy that all params must be present in the app that handles the route ?

Like this:

const app = new Hono().basePath("/api");

// This is done in different file
const products = new Hono()
    .patch(
        "/:productId",
        // clerk middleware and zodValidator checks
        async (c) {
            const {storeId, productId} = c.req.valid("param")
            const product = { id: productId, storeId, name: 'mock product'}
            return c.json({product: product;
        }
        
// This is my main Hono route declaration
const routes = app
    // bunch of other routes
    .route("/:storeId/products", products)

Doing it as per above breaks RPC because param will have extra type definitions than expected.

If I move all the params inside the app that handles them, it works fine, but that forces me to mount all apps on the top level "/" path.

// This doesn't break type inference
const app = new Hono().basePath("/api");

// This is done in different file
const products = new Hono()
    .patch(
        "/:storeId/products/:productId",   // forced to move the first param here to make this work 
        // clerk middleware and zodValidator checks
        async (c) {
            const {storeId, productId} = c.req.valid("param")
            const product = { id: productId, storeId, name: 'mock product'}
            return c.json({product: product;
        }
        
const routes = app
    // bunch of other routes
    .route("/", products)     // <--- can't go deeper than this without breaking type inference

You can see the full gist here with screenshot and detailed errors here:
https://gist.github.com/sterlinghagoromo/c822866ddeab8b7e46a1c8e9e34e6028