Create a typescript type that refers to a useQuery hook dynamically
I'm trying to create a typescript type that generically refers to a useQuery hook (e.g. I am trying to do
type CommonHookFn = (name:string)=>MyCustomType, except I need the equivalent of a useQuery hook where I can templatize the inputs/outputs).
From exploring the types under the hood of trpc, I think I need to use ProcedureUseQuery<TProcedure, TPath> to do this, but I can't figure out what I would put in to TProcesure/TPath to tell it that I'm looking for a Query with specific input/output types.. (e.g need a hook that takes a string as n input, and returns MyCustomType for its data)
Does anyone know how to create a type like this?
environment:
Node 19,
typescript 5.3.3,
@trpc/client, @trpc/server, @trpc/next: 10.45.1
@tanstack/react-query: 4.36.1Solution:Jump to solution
I also have a post on this https://dev.to/nicklucas/trpc-patterns-router-factories-and-polymorphism-30b0
DEV Community
tRPC & React Patterns: Router Factories
This post comes in 2 halves: tRPC Router Factories Consuming Router Factories in a React...
4 Replies
Take a look at the polymorphism helpers
Solution
I also have a post on this https://dev.to/nicklucas/trpc-patterns-router-factories-and-polymorphism-30b0
DEV Community
tRPC & React Patterns: Router Factories
This post comes in 2 halves: tRPC Router Factories Consuming Router Factories in a React...
Alternatively if you just want to pass a single function around you can easily take the typeof or reconstruct it from the inputs and outputs
thanks! this is exactly what I'm trying to do!