fix(types): Add pageParam type to QueryFunction generic types (#5623)

Although QueryFunctionContext allows setting the pageParam type
through generics, QueryFunction uses QueryFunctionContext without
exposing this typing functionality. This forces any queryFn
typed as a QueryFunction to have an `any` pageParam. This change adds
TPageParam to QueryFunction type, which is passed through to
QueryFunctionContext.

This should be backward compatible and only affects typing (not runtime code).

Co-authored-by: Mike Lyons <mike@dropbox.com>
Co-authored-by: Dominik Dorfmeister <office@dorfmeister.cc>

Author: 3 people

packages/query-core/src/types.ts

@@ -13,7 +13,8 @@ export type QueryKey = readonly unknown[]
 export type QueryFunction<
   T = unknown,
   TQueryKey extends QueryKey = QueryKey,
-> = (context: QueryFunctionContext<TQueryKey>) => T | Promise<T>
+  TPageParam = any,
+> = (context: QueryFunctionContext<TQueryKey, TPageParam>) => T | Promise<T>
 
 export interface QueryFunctionContext<
   TQueryKey extends QueryKey = QueryKey,