badExample.js

componentDidMount() {
    const events = [{
      service: 'conversation',
      event: 'created',
      eventFunc: this.addConversation,
    },
    {
      service: 'conversation',
      event: 'removed',
      eventFunc: this.removeConversation,
    }];
    // this makes your events management hard to handle
    const { app } = this.context;
    forEach(events, ({ service, event, eventFunc }) => {
      app.service(service).on(event, eventFunc);
    });
}