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

docs/framework/angular/reference/functions/injectIsMutating.md

@@ -0,0 +1,50 @@
+---
+id: injectIsMutating
+title: injectIsMutating
+---
+
+```ts
+function injectIsMutating(filters?, options?): Signal<number>;
+```
+
+Defined in: [packages/angular-query-experimental/src/inject-is-mutating.ts:46](https://github.com/TanStack/query/blob/main/packages/angular-query-experimental/src/inject-is-mutating.ts#L46)
+
+Injects a signal that tracks the number of mutations that your application currently has `pending`
+(useful for app-wide loading indicators).
+
+## Parameters
+
+### filters?
+
+[`MutationFilters`](../interfaces/MutationFilters.md)\<`unknown`, `Error`, `unknown`, `unknown`\>
+
+The [MutationFilters](../interfaces/MutationFilters.md) to narrow down the matched mutations.
+
+### options?
+
+[`InjectIsMutatingOptions`](../interfaces/InjectIsMutatingOptions.md)
+
+Additional configuration
+
+## Returns
+
+`Signal`\<`number`\>
+
+A `Signal` with the number of mutations that your application currently has `pending`.
+
+## Example
+
+```angular-ts
+@Component({
+  selector: 'posts-mutating-indicator',
+  template: `
+    @if (isMutatingPosts()) {
+      <span>Saving posts...</span>
+    }
+  `,
+})
+export class PostsMutatingIndicator {
+  // How many mutations matching the posts prefix are in progress?
+  readonly isMutatingPosts = injectIsMutating({ mutationKey: ['posts'] })
+}
+```