> Portal Navigation:
> 
> - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version.
> - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages).
> - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`).
> - Top-level index of all portals: https://dev.wix.com/docs/llms.txt
> - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt

# Method name:

authentication.applySessionToken(token: string)

# Method Link:

https://dev.wix.com/docs/sdk/host-modules/site/authentication/apply-session-token.md

# Method Description:

Applies a session token to establish a member session.

This function authenticates a member using a session token. The token is usually obtained from [Register](https://dev.wix.com/docs/sdk/host-modules/site/authentication/register.md), [Login](https://dev.wix.com/docs/sdk/host-modules/site/authentication/login.md) methods,
or a 3rd-party authentication provider. After applying the token, the member is logged in and has access to member-only content.

# Method Permissions:



# Method Permissions Scopes IDs:

undefined



# Method Code Examples:

## Apply a session token received from the backend


```javascript
```typescript
import { applySessionToken } from '@wix/authentication';

// Token received from your backend authentication flow
const sessionToken = 'your-session-token-from-backend';

try {
  await applySessionToken(sessionToken);
  console.log('Session established successfully');
} catch (error) {
  console.error('Failed to apply session token:', error);
}
```
```

## Apply a session token from a custom OAuth flow


```javascript
```typescript
import { applySessionToken, loggedIn } from '@wix/authentication';

async function handleOAuthCallback(tokenFromOAuth: string) {
  try {
    await applySessionToken(tokenFromOAuth);

    if (loggedIn()) {
      console.log('OAuth login successful');
      // Redirect to member dashboard
      window.location.href = '/dashboard';
    }
  } catch (error) {
    console.error('OAuth login failed:', error);
  }
}
```
```