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4/23/2025

Calling endpoint within another endpoint

Hi, I need to get the result of one of my endpoints, but I can't just call the underlying function directly — because every endpoint is wrapped with security and middleware before being exposed through the tRPC appRouter. So instead of bypassing those layers, I need to trigger the full chain — essentially making a proper call to the endpoint itself (as if it were external), even from inside another tRPC procedure. ...

Khojo

4/22/2025

[Typescript] Client query / mutate has any type

I've broken my tRPC routes into separate modules and combined them using mergeRouters, but that seems to have broken type-safety on the client. Now, trpc is showing up as any, and I’ve lost all autocomplete and type hints for available procedures. Things I’ve checked: - I’ve gone through the tRPC FAQ and verified everything listed. - Types were working fine (only for health-check procedures though) before I split and merged the routers ...

Fulcano

4/21/2025

What do you call the function that is used by a procedure?

Hey all! I'm making a small style guide for my team and was wondering what to call the actual function that is passed to procedures... should I also call it a procedure?

Janic

4/20/2025

wsLink with external (custom) websocket?

I want to integrate an external websocket to tRPC for extra type-safety with wsLink where the url will need to be dynamic and the authentication as well. The problem is as follows: 1) The websocket url is dynamic. It needs to be requested through an API first to get it, because the system has multiple nodes with different ports....

NilsB

4/20/2025

Error trying to serve TRPC from custom path in Hono

I'm successfully serving a basic "hello world" using the default root path: ```proxyApp.use("/trpc/*", trpcServer({ router: appRouter,...

Brokenwind

4/19/2025

Next JS error handling.

I'm having this weird error in Next dev whenever I throw an error in a router. ``` login: publicProcedure.input(loginSchema).mutation(async ({ ctx, input }) => { const { error } = await ctx.supabase.auth.signInWithPassword({...

dylan42432

4/19/2025

bigint

My trpc client is showing type never for bigints. How can I fix this? Thanks...

canastro

4/18/2025

`useSuspenseQuery` returns unexpected `.json` and `.metadata` (SuperJSON)

I'm following the docs here: https://trpc.io/docs/client/tanstack-react-query/server-components I have this query client builder: ```ts...

seb

4/18/2025

trpc+solidjs

I've been happily using trpc v10 with solidjs. now that v11 is officially out, what's the best way to use trpc with solid? is the vanilla client + manual tanstack query integration the way to go?

danecando

4/17/2025

Best way to wrap procedure for error handling

Wondering what's the most idiomatic way to accomplish this? I want to have a try { } catch {} that wraps each procedure and returns a generic error for uncaught (non trpc) errors It is to just created a wrapper fn ie withErrorHandling that you wrap all your procedures with? ...

allenwhun

4/17/2025

procedures on routers are typed any

I'm using the better-t-stack. It also uses turborepo for trpc.

Solution:

Hi @Khojo & @ToolReaz I've made an issue to the official repository. Feel free to follow along and try the suggestions other said. https://github.com/AmanVarshney01/create-better-t-stack/issues/177...

Mladen

4/16/2025

Inferring Types not working as expected

Hi guys, For some reason inferRouterOutputs is not working as expected for me. Environment: react-native, bun, trpc 11...

vntbln

4/15/2025

Error: Switched to client rendering because the server rendering errored: UNAUTHORIZED

What could be the possible reason for this error? This is how my NextJS structure looks when using tRPC. - /app/settings/page.tsx...

Markus

4/15/2025

Max number of subscriptions

Hello, I hope you can help me. I have a nextjs app with a realtime chat and I've just switched to sse (like in the example repo in the docs) from a standalone ws server. I've implemented various subscriptions, onAdd, onEdit, onDelete, onType and so on. Everithing works on their own but when i try to enable more then 5 subscriptions at the same time the page breaks ( no longer receiving mutation response, no longer able to reload the page, some external api is left pending) . Is there a limit of subscriptions i can run simultaneously? I already have solved the problem consolidating in 2 or 3 subscriptions the whole logic and it works no problem. It would be nice to know if there is a limit tho. Thanks 😃 running on node 22.14 with npm and nextjs v15.3...

zirkelc

4/15/2025

TRPCError: Unsupported GET-request to mutation procedure at path

Hi, since I upgraded to TRPC v11 and React Query v5 with the classic integration, I suddenly get lots of errors like these: TRPCError: Unsupported GET-request to mutation procedure at path "app.trackMetric" ...

coder2000

4/14/2025

Context and TanStack

I am having trouble creating the appropriate context with the tanstack query client. The documentation says to use a type that asks for a NextApiResponse but all I can get is a plain NextResponse. Is there something I'm missing?

Fitim Bytyqi

4/14/2025

TRPC 11 Classic React Query custom hook

This is how I was able to refactor one of the custom hooks I had before, typescript threw an error ofc. old approach ```export const useGlassDiameters = < T extends DecoratedQuery<{...

Vilian

4/13/2025

signup/signin

I'm using theo's t3 stack and i'm wondering about user authentication. When signing in or up users, should i prefer nextjs's server actions or trpc ?...

Emre

4/13/2025

Pre-rendering Error with TRPC useSuspenseQuery – "fetch failed" During Build

Summary During the build process, the application attempts to pre-render the page containing the Greeting component. Since the component uses useSuspenseQuery to call a TRPC endpoint, pre-rendering triggers the call and results in a "fetch failed" error because the route isn’t available during build time. Known workarounds—switching to useQuery or using prefetch on the page component—prevent the error; however, these solutions are not acceptable in this case. Code Samples...

craftzcode

4/13/2025

Throwing error in trpc route, continuously sending a request

I tried to change to protectedProcedure on hello router to see if the Suspense and ErrorBoundary is working. As you can see on my network tab I already have a thousands request, I followed the Tanstack React Query/Server Components . And for the other screenshot that I provided, those are the only changes I made....

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