API reference > @kontsedal/olas-core > defineQuery

defineQuery() function

Define a shared query, cached per root and named by its id. Spec §5.2.

Signature:

export declare function defineQuery<Args extends unknown[], T>(spec: QuerySpec<Args, T>): Query<Args, T>;

Parameters

Parameter	Type	Description
spec	QuerySpec<Args, T>

Returns:

Query<Args, T>

Example

export const userQuery = defineQuery({
  id: 'users/detail',
  key: (id: string) => [id],
  fetcher: ({ signal, deps }, id) => deps.api.getUser(id, { signal }),
  staleTime: 30_000,
})