SpoonmanS
tRPC•14mo ago
Spoonman

Inconsistent types for mutation return type

I have a signIn mutation that returns:

{
  accessToken: string;
  refreshToken: string;
}


1. When I pull the types from the 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, but this time from my client, the wrong type is inferred (I get never instead of string for both keys)
3. When I pull the types via 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",


Why are my mutation output types getting lost? Thanks!
Screenshot_2024-11-30_at_11.07.33_AM.png
Screenshot_2024-11-30_at_11.11.05_AM.png
Screenshot_2024-11-30_at_11.11.17_AM.png
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