> For the complete documentation index, see [llms.txt](https://docs.payments.thalescloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payments.thalescloud.io/nfc-wallet-sdk-ios/es/get-started/configuration/4.-push-notifications.md).

# 4. Notificaciones push

El SDK de NFC Wallet utiliza notificaciones push para entregar actualizaciones de tarjetas digitales.

En iOS, implemente la entrega push usando **Firebase Cloud Messaging (FCM)**. FCM utiliza el servicio de notificaciones push de Apple (APNs) para alcanzar los dispositivos.

### Lo que necesita implementar

Su **aplicación de billetera digital** debe:

* Solicitar permiso de notificaciones y registrarse en APNs.
* Recuperar el token de registro de FCM.
* Enviar el token al SDK de NFC Wallet para que el backend de NFC Wallet pueda enviar notificaciones push al dispositivo.
* Rutar y procesar las notificaciones push entrantes de NFC Wallet.

### En esta sección

* [Gestionar tokens de push](/nfc-wallet-sdk-ios/es/get-started/configuration/4.-push-notifications/handle-push-tokens.md)

  Registrarse para notificaciones push y mantener el token sincronizado.
* [Manejar notificaciones push](/nfc-wallet-sdk-ios/es/get-started/configuration/4.-push-notifications/handle-push-notifications.md)

  Rutar y procesar las notificaciones push entrantes de NFC Wallet.


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