Firebase 云消息传递 requireInteraction 不起作用

Question

参考：https://github.com/firebase/quickstart-js/tree/master/messaging

我已经添加了键值对：

"requireInteraction": true

但桌面 Chrome 中的通知在 20 秒后仍然消失。有谁知道 Firebase 是否支持这个键值对？谢谢！

我的例子如下。请将[...] 更改为您的。

curl -X POST -H "Authorization: key=[...]" -H "Content-Type: application/json" -d '{
  "notification": {
    "requireInteraction": true,     
    "title": "This is custom title",
    "body": "this is custom body",
    "click_action": "https://google.com",
    "data" : {"requireInteraction": true  }
 },
  "to": "[...]",
}' "https://fcm.googleapis.com/fcm/send"

Answer 1

Firebase 会在传递消息时从 notification 负载中去除 requireInteraction 属性。有效的解决方法是使用data 属性而不是notification。然后，您可以使用setBackgroundMessageHandler() 方法构建您想要的通知：

messaging.setBackgroundMessageHandler(function (payload) {
    return self.registration.showNotification(payload.data.title,
        Object.assign({data: payload.data}, payload.data));
});

我在上面设置了data，因为click_action 不再适用于这种方法，您需要自己注册所需的onclick 处理程序。这是一个正在工作的服务人员，它完全按照您的设置 notification 执行您的操作，但使用了 data 属性：

// import scripts omitted 

const messaging = firebase.messaging();
// [END initialize_firebase_in_sw]

self.addEventListener('notificationclick', e => {
    let found = false;
    let f = clients.matchAll({
        includeUncontrolled: true,
        type: 'window'
    })
        .then(function (clientList) {
            for (let i = 0; i < clientList.length; i ++) {
                if (clientList[i].url === e.notification.data.click_action) {
                    // We already have a window to use, focus it.
                    found = true;
                    clientList[i].focus();
                    break;
                }
            }
            if (! found) {
                clients.openWindow(e.notification.data.click_action).then(function (windowClient) {});
            }
        });
    e.notification.close();
    e.waitUntil(f);
});

// [START background_handler]
messaging.setBackgroundMessageHandler(function (payload) {
    console.log('[firebase-messaging-sw.js] Received background message ', payload);
    // Customize notification here

    return self.registration.showNotification(payload.data.title,
        Object.assign({data: payload.data}, payload.data));

});
// [END background_handler]

这将是你的 curl 调用：

curl -X POST -H "Authorization: key=yourKey-" -H "Content-Type: application/json" -d '{
"data": {
    "title": "fooTitle",
    "body": "foo",
    "icon": "image.jpg",
    "click_action": "http://localhost:8000",
    "requireInteraction": true
  },
  "registration_ids": ["id1", "id2"]
}' "https://fcm.googleapis.com/fcm/send"