> For the complete documentation index, see [llms.txt](/llms.txt).

# useAuthTokenInfo

Hook to retrieve the identity token (JWT) for the signed-in user. Verify this token on your backend to confirm the user's identity. This hook replaces the deprecated [useIdentityToken](/embedded-wallets/sdk/react-native/hooks/useIdentityToken/).

### Import

```tsx
import { useAuthTokenInfo } from '@web3auth/react-native-sdk'

```

### Usage

```tsx
import { useAuthTokenInfo } from '@web3auth/react-native-sdk'
import { Button, Text, View } from 'react-native'

function VerifyButton() {
  const { getAuthTokenInfo, loading, error } = useAuthTokenInfo()

  const verifyOnServer = async () => {
    const idToken = await getAuthTokenInfo()
    if (!idToken) return

    await fetch('https://<YOUR_BACKEND>/api/verify', {
      method: 'POST',
      headers: { Authorization: `Bearer ${idToken}` },
    })
  }

  return (
    <View>
      <Button
        title={loading ? 'Fetching token…' : 'Verify identity'}
        disabled={loading}
        onPress={verifyOnServer}
      />
      {error && <Text>{error.message}</Text>}
    </View>
  )
}

```

See [identity token verification](/embedded-wallets/authentication/id-token/) for how to validate the token on your server.

### Return type

```tsx
import { type IUseAuthTokenInfo } from '@web3auth/react-native-sdk'

```

#### `getAuthTokenInfo`

`() => Promise<string | null>`

Resolves with the identity token for the current session. Resolves with `null` and sets `error` if the user isn't signed in. For sessions created by passing an `idToken` to `connectTo`, the hook returns the token you passed.

#### `token`

`string | null`

Most recent identity token returned by `getAuthTokenInfo`. Resets to `null` when the session is no longer authorized. Sessions created by passing an `idToken` to `connectTo` are never authorized, so for them `token` stays `null`; use the value `getAuthTokenInfo` returns instead.

#### `loading`

`boolean`

`true` while `getAuthTokenInfo` runs.

#### `error`

`Web3authRNError | null`

Error from the most recent `getAuthTokenInfo` call, or `null`.