[Home](./index.md) > [@firebase/messaging](./messaging.md) > [NotificationPayload](./messaging.notificationpayload.md) ## NotificationPayload interface Currently supported fcm notification display parameters. Note that [https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/notifications/NotificationOptions](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/notifications/NotificationOptions) defines a full list of display notification parameters. This interface we only include what the SEND API support for clarity. Signature: ```typescript export interface NotificationPayload ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [body?](./messaging.notificationpayload.body.md) | string | (Optional) | | [image?](./messaging.notificationpayload.image.md) | string | (Optional) | | [title?](./messaging.notificationpayload.title.md) | string | (Optional) |