如何自动触发推送通知到我的送餐 Web 应用程序，仅从服务器到所需用户

Question

我尝试使用一个信号，fcm，但我必须手动定位我想发送通知的人，但情况并非如此。每次用户向特定餐厅而不是所有餐厅下订单时，都应自动触发通知。

一个信号，FCM，推杆梁，按钮警报

public class MyService extends FirebaseMessagingService {
    /**
     * Called when message is received.
     *
     * @param remoteMessage Object representing the message received from Firebase Cloud Messaging.
     */

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);
        // TODO(developer): Handle FCM messages here.
        // If the application is in the foreground handle both data and notification messages here.
        // Also if you intend on generating your own notifications as a result of a received FCM
        // message, here is where that should be initiated. See sendNotification method below.
        RemoteMessage.Notification notification = remoteMessage.getNotification();
        Map<String, String> data = remoteMessage.getData();
        sendNotification(notification, data);
    }

预期结果是通知应仅发送给目标餐厅，而不是所有其他餐厅。 实际结果是我必须手动触发才能从用户应用程序发送到特定餐厅，这在应用程序开发方面是不合适的

Answer 1

听起来你正在寻找有关如何将后端事件与OneSignal集成的信息。您可以使用我们的 API 来实现此目的。看看我们的博客文章，解释如何实现你想要的结果。