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

docs/framework/preact/reference/interfaces/HydrationBoundaryProps.md

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+---
+id: HydrationBoundaryProps
+title: HydrationBoundaryProps
+---
+
+Defined in: [packages/preact-query/src/HydrationBoundary.tsx:17](https://github.com/TanStack/query/blob/main/packages/preact-query/src/HydrationBoundary.tsx#L17)
+
+The props accepted by `HydrationBoundary`.
+
+## Properties
+
+### children?
+
+```ts
+optional children: ComponentChildren;
+```
+
+Defined in: [packages/preact-query/src/HydrationBoundary.tsx:37](https://github.com/TanStack/query/blob/main/packages/preact-query/src/HydrationBoundary.tsx#L37)
+
+The components to render — always rendered unconditionally, not gated on hydration. New queries are
+hydrated into the cache during render; for queries that already exist in the cache, only newer dehydrated
+data is hydrated, and that happens in an effect after commit, so `children` may render briefly before it
+lands.
+
+***
+
+### options?
+
+```ts
+optional options: OmitKeyof<HydrateOptions, "defaultOptions"> & object;
+```
+
+Defined in: [packages/preact-query/src/HydrationBoundary.tsx:25](https://github.com/TanStack/query/blob/main/packages/preact-query/src/HydrationBoundary.tsx#L25)
+
+Optional. Note: unlike `hydrate`, `mutations` cannot be set here.
+
+#### Type Declaration
+
+##### defaultOptions?
+
+```ts
+optional defaultOptions: OmitKeyof<{
+  deserializeData?: TransformerFn;
+  mutations?: MutationOptions<unknown, Error, unknown, unknown>;
+  queries?: QueryOptions<unknown, Error, unknown, readonly unknown[], never>;
+}, "mutations">;
+```
+
+***
+
+### queryClient?
+
+```ts
+optional queryClient: QueryClient;
+```
+
+Defined in: [packages/preact-query/src/HydrationBoundary.tsx:41](https://github.com/TanStack/query/blob/main/packages/preact-query/src/HydrationBoundary.tsx#L41)
+
+Use this to use a custom `QueryClient`. Otherwise, the one from the nearest context will be used.
+
+***
+
+### state
+
+```ts
+state: DehydratedState | null | undefined;
+```
+
+Defined in: [packages/preact-query/src/HydrationBoundary.tsx:21](https://github.com/TanStack/query/blob/main/packages/preact-query/src/HydrationBoundary.tsx#L21)
+
+The state to hydrate.