AppNotificationHandler (Cyclos 4.15.15 Scripting API Documentation)

All Known Implementing Classes:

FcmAppNotificationHandlerImpl
```
public interface AppNotificationHandler
```
Handler to send app notifications (aka push notifications)
Known implementations: FcmAppNotificationHandlerImpl

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`canReceiveNotifications(BasicUser user)`	Returns whether the app notifications are configured for the user and if it also has the required mediums to receive it (e.g an FCM registration token). If false no notifications will be sent to this specific user.
`boolean`	`notify(AppNotificationMessage notification)`	Sends (synchronously) a new app notification.
`void`	`validate(BasicUser user, Object medium)`	Validates the given medium used to send the app notification to the user.

- Method Detail
  - canReceiveNotifications
```
boolean canReceiveNotifications(BasicUser user)
```
    Returns whether the app notifications are configured for the user and if it also has the required mediums to receive it (e.g an FCM registration token).
    If false no notifications will be sent to this specific user.
  - notify
```
boolean notify(AppNotificationMessage notification)
```
    Sends (synchronously) a new app notification.
    
    Returns:
    
    whether the notification was sent or not.
  - validate
```
void validate(BasicUser user,
              Object medium)
       throws AppNotificationException,
              ValidationException
```
    Validates the given medium used to send the app notification to the user. The medium depends on the underlying implementation, e.g in case of FCM it would be a token of type String.
    
    Throws:
    
    AppNotificationException
    
    ValidationException