--- id: QueriesObserver title: QueriesObserver --- ## `QueriesObserver` The `QueriesObserver` can be used to observe multiple queries. ```js const observer = new QueriesObserver(queryClient, [ { queryKey: ['post', 1], queryFn: fetchPost }, { queryKey: ['post', 2], queryFn: fetchPost }, ]) const unsubscribe = observer.subscribe(result => { console.log(result) unsubscribe() }) ``` **Options** The options for the `QueriesObserver` are exactly the same as those of [`useQueries`](/reference/useQueries).