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 in the example below:

import { RealTimeConfig } from 'akita-ng-fire/rtdb';
import {Database} from '@angular/fire/database';

@Injectable({ provideIn: 'root' })
@RealTimeConfig({ nodeName: 'vehicles' })
class VehicleService extends RealTimeService<VehicleState> {
  constructor(store: VehicleStore, db: Database) {
    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 Firebase Database, but it 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 to. We recommend subscribing to this observable in the canActivate function in a guard and unsubscribing in the canDeactivate function.

Hooks

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