real-time-db.md

Real Time Database

Real Time Service

If you want to sync your store with your real time database, you can do that now with the RealTimeService.

If you want to initialize this service you can do so like the example below:

import { RealTimeConfig } from 'akita-ng-fire/rtdb';

@Injectable({provideIn: 'root'})
@RealTimeConfig({ nodeName: 'vehicles' })
class VehicleService extends RealTimeService<VehicleState> {
  constructor(store: VehicleStore, db: AngularFireDatabase) {
    super(store, 'vehicles', db);
  }
}

• The first parameter is the akita store you want to link to this service.
• The second parameter is the name of the node.
• The third parameter is the AngularFireDatabaseService, but this is optional.

Sync node with the store

In order to sync your node with your store you need to call the syncNodeWithStore function. This function returns an observable that you need to subscribe. We Recommend to subscribe to this observable in the canActivate function in a guard and unsubscribe in the canDeactivate function.

Hooks

This service got two hooks: formatToDatabase and formatFromDatabase. These to hooks can be overwritten in your service and can be modified as you want.