frontend-tutorial-framework/src/app/fsmupdate.service.ts

import { Injectable } from '@angular/core';
import { WebSocketService } from './websocket.service';

import { FSMUpdate } from './fsmupdate';

@Injectable()
export class FSMUpdateService {
  public current_state: string;
  public valid_transitions: object;

  constructor(private websocketService: WebSocketService) {}

  public init(): void {
    this.websocketService.observeAnchor<FSMUpdate>('FSMUpdate').subscribe((event) => {
      this.current_state = event.data.current_state;
      this.valid_transitions = event.data.valid_transitions;
    });
  }

}