> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sublay.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Fetch mutual spaces

> Fetch spaces shared between the current user and another user

## Overview

`useFetchMutualSpaces` returns a callable function that fetches the spaces both the authenticated user and another user are active members of — their spaces in common. The response is a paginated list of [Space](/data-models/space) objects.

## Usage Example

```tsx theme={null}
import { useFetchMutualSpaces } from "@sublay/react-js";

function MutualSpaces({ otherUserId }: { otherUserId: string }) {
  const fetchMutualSpaces = useFetchMutualSpaces();

  const loadMutual = async () => {
    const result = await fetchMutualSpaces({ userId: otherUserId, page: 1, limit: 20 });
    // result.data: Space[]
    result.data.forEach((space) => {
      console.log(space.name, space.membersCount);
    });
  };
}
```

## Parameters

<ParamField path="userId" type="string" required>
  The other user's ID. Mutual spaces are computed between this user and the authenticated user.
</ParamField>

<ParamField path="page" type="number">
  Page number. Defaults to `1`.
</ParamField>

<ParamField path="limit" type="number">
  Number of results per page. Max `100`.
</ParamField>

<ParamField path="include" type="string | string[]">
  Optional includes. Pass `"files"` to populate avatar and banner file objects on each space.
</ParamField>

## Returns

<ResponseField name="data" type="Space[]">
  The spaces both users share ([Space](/data-models/space)). Computed fields such as `membersCount` and `isMember` reflect the authenticated user.
</ResponseField>

<ResponseField name="pagination" type="object">
  Standard pagination metadata.
</ResponseField>