Seeking a listener in Firebase to track changes in my notifications table for real-time data monitoring.
My project is utilizing Angular 2 with TypeScript and Firebase.
Seeking a listener in Firebase to track changes in my notifications table for real-time data monitoring.
My project is utilizing Angular 2 with TypeScript and Firebase.
A possible solution could be the following implementation:
export class AppComponent {
items:Array<string>;
constructor() {
var firebaseURL = "https://something.firebaseio.com/somethingelse";
var myFirebaseRef = new Firebase(firebaseURL);
myFirebaseRef.on('child_added', (childSnapshot, prevChildKey) => {
childSnapshot.forEach((records) => {
this.items = itemsarr.push(records.val());
});
console.log(itemsarr)
});
console.log(itemsarr);
}
}
Remember to create a new instance of the Firebase object within a component in order for Angular2 to detect changes in the items array.
I trust this information proves beneficial, Thierry
Although this is my current code, it doesn't trigger when a notification is added to the table:
waitingForNotificationChanges = (): void => {
this.refNotifications.on('child_added', (childSnapshot, prevChildKey) => {
console.log("Notification table changed");
this.getNumberOfNotificationsByUid();
});
};
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