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

# Use follow manager

> Manage follow state between two users in a single hook

## Overview

Combines follow status fetching and toggle actions into a single hook. On mount, loads whether the current user follows `userId`, then provides a `toggleFollow` function to follow or unfollow in one call.

For integration guidance, see [Relationships — useFollowManager](/sdk/relationships/use-follow-manager).

## Usage Example

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

function FollowButton({ userId }: { userId: string }) {
  const { isFollowing, isLoading, toggleFollow } = useFollowManager({ userId });

  return (
    <button onClick={toggleFollow} disabled={isLoading || isFollowing === null}>
      {isFollowing ? "Unfollow" : "Follow"}
    </button>
  );
}
```

## Parameters

<ParamField path="userId" type="string" required>
  The ID of the target user.
</ParamField>

## Returns

<ResponseField name="isFollowing" type="boolean | null">
  `true` if following, `false` if not, `null` while the initial status is loading.
</ResponseField>

<ResponseField name="isLoading" type="boolean">
  `true` while the initial status check is in progress.
</ResponseField>

<ResponseField name="toggleFollow" type="() => Promise<void>">
  Follows the user if not currently following; unfollows if currently following. No-ops while loading or if `userId` is the current user's own ID.
</ResponseField>