tRPC•15mo ago

Inconsistent types for mutation return type

I have a

signIn

signIn

mutation that returns:

{
  accessToken: string;
  refreshToken: string;
}

{
  accessToken: string;
  refreshToken: string;
}

1. When I pull the types from the

AppRouter

AppRouter

in the server (separate API with Express.js), the proper type is inferred.
2. When I pull the types of the mutation from the

AppRouter

AppRouter

, but this time from my client, the wrong type is inferred (I get

never

never

instead of

string

string

for both keys)
3. When I pull the types via

Awaited<ReturnType<typeof trpc.signIn.mutate>>

Awaited<ReturnType<typeof trpc.signIn.mutate>>

or by directly invoking the function, the type turns to

{}

{}

See screenshots for some more details.

These are the packages I have installed:

"@tanstack/react-query": "^5.61.0",
"@trpc/client": "^11.0.0-rc.643",
"@trpc/react-query": "^11.0.0-rc.643",
"@trpc/server": "^11.0.0-rc.643",

"@tanstack/react-query": "^5.61.0",
"@trpc/client": "^11.0.0-rc.643",
"@trpc/react-query": "^11.0.0-rc.643",
"@trpc/server": "^11.0.0-rc.643",

Why are my mutation output types getting lost? Thanks!