使用Firebase Cloud Function iOS推送通知

问题描述：

尝试通过Firebase云功能发送远程推送通知.我一直关注的资源通过sendToDevice方法实现此目的，该方法将String作为参数.来自GitHub的资源称其为设备通知令牌"，当用户同意在应用程序中接收通知时将检索该设备. Firebase称其为来自客户端FCM SDK的注册令牌".这里的输入应该是什么，以及如何检索?

Trying to send remote push notifications through firebase cloud functions. Resources I've been following achieves this through sendToDevice method, which takes a String as an argument. A resource from GitHub says its a "device notification token" that is retrieved when user agrees to receive notifications in app. Firebase says its a "registration token that comes from the client FCM SDKs". What should be the input here, and how to I retrieve it?

      // Send notification to device via firebase cloud messaging.  
      // https://firebase.google.com/docs/cloud-messaging/admin/send-messages
      // https://github.com/firebase/functions-samples/blob/master/fcm-notifications/functions/index.js
      // 

      admin.messaging().sendToDevice(request.query.tokenId, payload).then(response => {
        response.results.forEach((result, index) =>  {
            const error = result.error 
            if (error) {
                console.log("Failure sending notification.")
            }
        });
    });

答

您需要接收当前注册令牌.

注册令牌是通过FIRMessagingDelegate方法传递的消息传递:didReceiveRegistrationToken :.这个方法叫做通常每个应用以FCM令牌开头一次.当这种方法是被称为，这是进行以下操作的理想时间:

Registration tokens are delivered via the FIRMessagingDelegate method messaging:didReceiveRegistrationToken:. This method is called generally once per app start with an FCM token. When this method is called, it is the ideal time to:

如果注册令牌是新的，请将其发送到您的应用程序服务器(建议实施服务器逻辑以确定是否已注册令牌. 令牌是新的.)
为主题注册注册令牌.仅对于新订阅或用户具有以下情况时才需要重新安装该应用.

If the registration token is new, send it to your application server (it's recommended to implement server logic to determine whether the token is new).
Subscribe the registration token to topics. This is required only for new subscriptions or for situations where the user has re-installed the app.

因此，您必须在应用程序中保留此令牌，将其存储在Cloud Function可以保留的位置(传统上是实时数据库)，并在函数运行时进行查询.

So, you'll have to get a hold of this token in your app, store it somewhere that the Cloud Function can get a hold of (traditionally, Realtime Database), and query for it at the time the function runs.

使用Firebase Cloud Function iOS推送通知

相关推荐