Method find

packages/query-core/src/queryCache.ts:299–307

* A slightly more advanced method that can be used to get an existing query instance from the * cache. This instance not only contains all the state for the query, but all of the instances, * and underlying guts of the query as well. If the query does not exist, `undefined` is * returned.

(
    filters: WithRequired<QueryFilters, 'queryKey'>,
  )

   * ```
   */
  find<TQueryFnData = unknown, TError = DefaultError, TData = TQueryFnData>(
    filters: WithRequired<QueryFilters, 'queryKey'>,
  ): Query<TQueryFnData, TError, TData> | undefined {
    const defaultedFilters = { exact: true, ...filters }

    return this.getAll().find((query) =>
      matchQuery(defaultedFilters, query),
    ) as Query<TQueryFnData, TError, TData> | undefined
  }

  /**
   * An even more advanced method that can be used to get existing query instances from the cache