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docs/framework/solid/reference/classes/QueriesObserver.md

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+---
+id: QueriesObserver
+title: QueriesObserver
+---
+
+Defined in: [packages/query-core/src/queriesObserver.ts:56](https://github.com/TanStack/query/blob/main/packages/query-core/src/queriesObserver.ts#L56)
+
+A `QueriesObserver` watches an array of queries at once, exposing them as
+a single array of `QueryObserverResult`s (or, when a `combine` option is
+given, as a combined value derived from that array). It manages one
+internal `QueryObserver` per query, and is the primitive that framework
+adapters (e.g. `useQueries`) build their hooks on top of.
+
+## Example
+
+```ts
+const observer = new QueriesObserver(queryClient, [
+  { queryKey: ['post', 1], queryFn: fetchPost },
+  { queryKey: ['post', 2], queryFn: fetchPost },
+])
+
+const unsubscribe = observer.subscribe((result) => {
+  console.log(result)
+})
+```
+
+## Extends
+
+- `Subscribable`\<`QueriesObserverListener`\>
+
+## Type Parameters
+
+### TCombinedResult
+
+`TCombinedResult` = [`QueryObserverResult`](../type-aliases/QueryObserverResult.md)[]
+
+## Constructors
+
+### Constructor
+
+```ts
+new QueriesObserver<TCombinedResult>(
+   client, 
+   queries, 
+options?): QueriesObserver<TCombinedResult>;
+```
+
+Defined in: [packages/query-core/src/queriesObserver.ts:70](https://github.com/TanStack/query/blob/main/packages/query-core/src/queriesObserver.ts#L70)
+
+#### Parameters
+
+##### client
+
+`QueryClient`
+
+##### queries
+
+`QueryObserverOptions`\<`any`, `any`, `any`, `any`, `any`, `never`\>[]
+
+##### options?
+
+[`QueriesObserverOptions`](../interfaces/QueriesObserverOptions.md)\<`TCombinedResult`\>
+
+#### Returns
+
+`QueriesObserver`\<`TCombinedResult`\>
+
+#### Overrides
+
+```ts
+Subscribable<QueriesObserverListener>.constructor
+```
+
+## Properties
+
+### listeners
+
+```ts
+protected listeners: Set<QueriesObserverListener>;
+```
+
+Defined in: [packages/query-core/src/subscribable.ts:2](https://github.com/TanStack/query/blob/main/packages/query-core/src/subscribable.ts#L2)
+
+#### Inherited from
+
+```ts
+Subscribable.listeners
+```
+
+## Methods
+
+### destroy()
+
+```ts
+destroy(): void;
+```
+
+Defined in: [packages/query-core/src/queriesObserver.ts:106](https://github.com/TanStack/query/blob/main/packages/query-core/src/queriesObserver.ts#L106)
+
+Stops observing all queries: clears all listeners and destroys every
+underlying `QueryObserver` this observer manages.
+
+#### Returns
+
+`void`
+
+***
+
+### getCurrentResult()
+
+```ts
+getCurrentResult(): QueryObserverResult[];
+```
+
+Defined in: [packages/query-core/src/queriesObserver.ts:210](https://github.com/TanStack/query/blob/main/packages/query-core/src/queriesObserver.ts#L210)
+
+Returns the most recently computed array of `QueryObserverResult`s, one
+per observed query, in the same order as the queries passed to the
+constructor or `setQueries`.
+
+#### Returns
+
+[`QueryObserverResult`](../type-aliases/QueryObserverResult.md)[]
+
+#### Example
+
+```ts
+const results = observer.getCurrentResult()
+const data = results.map((result) => result.data)
+```
+
+***
+
+### getObservers()
+
+```ts
+getObservers(): QueryObserver<unknown, Error, unknown, unknown, readonly unknown[]>[];
+```
+
+Defined in: [packages/query-core/src/queriesObserver.ts:227](https://github.com/TanStack/query/blob/main/packages/query-core/src/queriesObserver.ts#L227)
+
+Returns the underlying `QueryObserver` instances this observer manages,
+in the same order as the queries passed to the constructor or
+`setQueries`.
+
+#### Returns
+
+[`QueryObserver`](QueryObserver.md)\<`unknown`, `Error`, `unknown`, `unknown`, readonly `unknown`[]\>[]
+
+***
+
+### getOptimisticResult()
+
+```ts
+getOptimisticResult(queries, combine): [QueryObserverResult[], (r?) => TCombinedResult, () => QueryObserverResult[]];
+```
+
+Defined in: [packages/query-core/src/queriesObserver.ts:238](https://github.com/TanStack/query/blob/main/packages/query-core/src/queriesObserver.ts#L238)
+
+The `QueriesObserver` counterpart of [QueryObserver#getOptimisticResult](QueryObserver.md#getoptimisticresult) — computes
+the result for the given (already-defaulted) queries right now, synchronously. Called by
+framework adapters (e.g. `useQueries`) ahead of subscribing, returning a tuple of the raw
+per-query results, a function to compute the combined result from them, and a function to
+wrap the results for property-access tracking.
+
+#### Parameters
+
+##### queries
+
+`QueryObserverOptions`\<`unknown`, `Error`, `unknown`, `unknown`, readonly `unknown`[], `never`\>[]
+
+##### combine
+
+`CombineFn`\<`TCombinedResult`\> | `undefined`
+
+#### Returns
+
+\[[`QueryObserverResult`](../type-aliases/QueryObserverResult.md)[], (`r?`) => `TCombinedResult`, () => [`QueryObserverResult`](../type-aliases/QueryObserverResult.md)[]\]
+
+***
+
+### getQueries()
+
+```ts
+getQueries(): Query<unknown, Error, unknown, readonly unknown[]>[];
+```
+
+Defined in: [packages/query-core/src/queriesObserver.ts:218](https://github.com/TanStack/query/blob/main/packages/query-core/src/queriesObserver.ts#L218)
+
+Returns the underlying `Query` instances currently being observed, in
+the same order as the queries passed to the constructor or `setQueries`.
+
+#### Returns
+
+[`Query`](Query.md)\<`unknown`, `Error`, `unknown`, readonly `unknown`[]\>[]
+
+***
+
+### hasListeners()
+
+```ts
+hasListeners(): boolean;
+```
+
+Defined in: [packages/query-core/src/subscribable.ts:19](https://github.com/TanStack/query/blob/main/packages/query-core/src/subscribable.ts#L19)
+
+#### Returns
+
+`boolean`
+
+#### Inherited from
+
+```ts
+Subscribable.hasListeners
+```
+
+***
+
+### onSubscribe()
+
+```ts
+protected onSubscribe(): void;
+```
+
+Defined in: [packages/query-core/src/queriesObserver.ts:86](https://github.com/TanStack/query/blob/main/packages/query-core/src/queriesObserver.ts#L86)
+
+#### Returns
+
+`void`
+
+#### Overrides
+
+```ts
+Subscribable.onSubscribe
+```
+
+***
+
+### onUnsubscribe()
+
+```ts
+protected onUnsubscribe(): void;
+```
+
+Defined in: [packages/query-core/src/queriesObserver.ts:96](https://github.com/TanStack/query/blob/main/packages/query-core/src/queriesObserver.ts#L96)
+
+#### Returns
+
+`void`
+
+#### Overrides
+
+```ts
+Subscribable.onUnsubscribe
+```
+
+***
+
+### setQueries()
+
+```ts
+setQueries(queries, options?): void;
+```
+
+Defined in: [packages/query-core/src/queriesObserver.ts:127](https://github.com/TanStack/query/blob/main/packages/query-core/src/queriesObserver.ts#L127)
+
+Replaces the set of queries being observed. Existing `QueryObserver`s
+are reused for queries that match an already-observed query hash;
+observers for queries that are no longer present are destroyed, and new
+observers are created and subscribed to for newly added queries.
+
+#### Parameters
+
+##### queries
+
+`QueryObserverOptions`\<`unknown`, `Error`, `unknown`, `unknown`, readonly `unknown`[], `never`\>[]
+
+##### options?
+
+[`QueriesObserverOptions`](../interfaces/QueriesObserverOptions.md)\<`TCombinedResult`\>
+
+#### Returns
+
+`void`
+
+#### Example
+
+```ts
+observer.setQueries([
+  { queryKey: ['post', 1], queryFn: fetchPost },
+  { queryKey: ['post', 3], queryFn: fetchPost },
+])
+```
+
+***
+
+### subscribe()
+
+```ts
+subscribe(listener): () => void;
+```
+
+Defined in: [packages/query-core/src/subscribable.ts:8](https://github.com/TanStack/query/blob/main/packages/query-core/src/subscribable.ts#L8)
+
+#### Parameters
+
+##### listener
+
+`QueriesObserverListener`
+
+#### Returns
+
+```ts
+(): void;
+```
+
+##### Returns
+
+`void`
+
+#### Inherited from
+
+```ts
+Subscribable.subscribe
+```