Hono•8mo ago

client of type unknown

I am having issues with the type inference of the client when using hono rpc
I've read https://hono.dev/docs/guides/rpc, https://hono.dev/examples/grouping-routes-rpc, and https://github.com/honojs/hono/issues/3148 and have adjusted my code accordingly, but am still getting this issue
please see my hono code: https://github.com/picafe/cs-ia/tree/hono/backend/src/routes and https://github.com/picafe/cs-ia/tree/hono/backend/src/index.ts
client is here: https://github.com/picafe/cs-ia/blob/hono/client/src/lib/client.ts
apologies in advance for my terrible code
feel free to ask for any more details, any help would be very appreciated

GitHub

'client' is of type 'unknown' when using route · Issue #3148 · ho...

What version of Hono are you using? 4.5.0 What runtime/platform is your app running on? Bun What steps can reproduce the bug? I have a very basic application structure, which I was hoping to be abl...

ambergristle•4/23/25, 4:34 AM

you should generate the type, esp when using a monorepo

ambergristle•4/23/25, 4:34 AM

this may also help: https://hono.dev/docs/guides/rpc#compile-your-code-before-using-it-recommended

ambergristle•4/23/25, 4:37 AM

this probably isn't helping:

ambergristle•4/23/25, 4:39 AM

you're overriding the type inferred from your routes with a more-generic type that doesn't know anything about your routes at all

ambergristle•4/23/25, 4:40 AM

try

owopiOP•4/23/25, 11:46 AM

that worked in getting the client to infer types, thank you

owopiOP•4/23/25, 11:47 AM

but I did that because of this typeerror

Oowopi but I did that because of this typeerror

ambergristle•4/23/25, 11:56 AM

Hm. I’ve never seen that before. Where is that error being thrown? Can you share a screenshot?

ambergristle•4/23/25, 11:57 AM

Using generated types might solve the issue, or are you doing that now?

Aambergristle Hm. I’ve never seen that before. Where is that error being thrown? Can you share...

owopiOP•4/23/25, 12:03 PM

it happens in every separated route file on the server

Oowopi ```The inferred type of 'userRoutes' cannot be named without a reference to '../...

ambergristle•4/23/25, 12:12 PM

Hm. Seems like a issue. It might have to do with the setting, or you might need to adjust base path resolution

owopiOP•4/23/25, 12:13 PM

it could be base path, ill try to figure it out

ambergristle•4/23/25, 12:14 PM

This might be helpful: https://github.com/microsoft/TypeScript/issues/42873

ambergristle•4/23/25, 12:15 PM

Idk that explicit type annotation is ever a good solution to this problem. It’s more of a project config issue. There might be some edge cases though

ambergristle•4/23/25, 12:16 PM

I’d recommend searching this server for monorepo examples. I don’t think there are any official example repos, but the community has definitely shared projects that could be helpful references