snapshot of https://github.com/TanStack/query.git (main, 2026-09-16; blobs > 131072B omitted)

docs/framework/solid/reference/functions/useIsMutating.md

@@ -0,0 +1,49 @@
+---
+id: useIsMutating
+title: useIsMutating
+redirect_from:
+  - framework/solid/reference/useIsMutating
+---
+
+```ts
+function useIsMutating(filters?, queryClient?): Accessor<number>;
+```
+
+Defined in: [packages/solid-query/src/useIsMutating.ts:28](https://github.com/TanStack/query/blob/main/packages/solid-query/src/useIsMutating.ts#L28)
+
+The `useIsMutating` hook returns the `number` of mutations that your application currently has `pending`
+(useful for app-wide loading indicators).
+
+## Parameters
+
+### filters?
+
+`Accessor`\<[`MutationFilters`](../interfaces/MutationFilters.md)\<`unknown`, `Error`, `unknown`, `unknown`\>\>
+
+An accessor returning the [MutationFilters](../interfaces/MutationFilters.md) to narrow down the matched mutations.
+
+### queryClient?
+
+`Accessor`\<[`QueryClient`](../classes/QueryClient.md)\>
+
+An accessor for a custom `QueryClient`. Otherwise, the one from the nearest context
+will be used.
+
+## Returns
+
+`Accessor`\<`number`\>
+
+An accessor for the `number` of the mutations that your application currently has `pending`.
+
+## Example
+
+```tsx
+import { useIsMutating } from '@tanstack/solid-query'
+
+function PostsMutatingIndicator() {
+  // How many mutations matching the posts prefix are in progress?
+  const isMutatingPosts = useIsMutating(() => ({ mutationKey: ['posts'] }))
+
+  return isMutatingPosts() > 0 ? <span>Saving posts...</span> : null
+}
+```