## Create an embedded Checkout instance `stripe.createEmbeddedCheckoutPage(options: object)` This method creates an embedded Checkout instance. - `options` Embedded Checkout create options. - `fetchClientSecret` A callback function `fetchClientSecret() => Promise` that resolves with the [client secret](https://docs.stripe.com/api/checkout/sessions/object.md#checkout_session_object-client_secret) for the [Checkout Session](docs/api/checkout/sessions/object). - `clientSecret (deprecated)` _This param has been deprecated in favor of the `fetchClientSecret` param, which offers a faster loading experience._ The [client secret](https://docs.stripe.com/api/checkout/sessions/object.md#checkout_session_object-client_secret) for the [Checkout Session](docs/api/checkout/sessions/object). - `onComplete` An optional callback function `onComplete() => void` that is called on completion for Checkout Sessions with `redirect_on_completion: if_required`. ### Example ```title Create embedded Checkout instance ```