---
url: >-
  https://docs.youcan.shop/apps/developer-tools/qantra/reference/session-token.md
---
# Session Token

Returns the seller's current session JWT from the YouCan Seller Area. This token is used to exchange for a store access token on your server.

In most cases you don't need to call this directly — `qantra.initialize()` handles token injection automatically. Use this when you need the raw token for a specific request.

## Signature

```ts
qantra.sessionToken(): Promise<string>
```

## Example

```ts
import { sessionToken } from '@youcan/qantra';

const token = await sessionToken();

// Use it as a Bearer token to call your own server
const res = await fetch('/api/store', {
  headers: { Authorization: `Bearer ${token}` },
});
```

## How it works

`sessionToken()` sends a `postMessage` to the parent Seller Area window, which calls its own internal API to generate a signed JWT and returns it to your app. The returned token can then be exchanged for a long-lived store access token via `POST /oauth/token`.

See [Authentication](/apps/embedded_app/auth) for the full exchange flow.