我该如何通过 FCM 接收消息已被接收的确认信息?我有一个渐进式 Web 应用程序,它会检查用户是否将 FCM 令牌存储在数据库中,如果是,则使用 FCM;如果未存储,则使用 Twilio 发送短信。问题是,即使浏览器关闭,消息也会排队等待重新打开浏览器,但是仍会记录“成功发送 fcm 消息”。我该如何知道用户实际上收到了消息,并且没有被卡在队列中?如果 Chrome 已经关闭,我希望短信能够立即发送。
const functions = require('firebase-functions');
const admin = require('firebase-admin');
const serviceAccount = require('./service-account.json');
admin.initializeApp({
credential: admin.credential.cert(serviceAccount),
databaseURL: `https://${process.env.GCLOUD_PROJECT}.firebaseio.com`
});
function sendFCM(uid, title, body) {
const payload = {
notification: {
title: title,
body: body,
click_action: "https://www.google.com"
}
};
const payloadOptions = {
timeToLive: 0
};
getUserDetails(uid).then((details) => {
if (details.fcmToken !== undefined) {
// send fcm message
return admin.messaging().sendToDevice(details.fcmToken, payload, payloadOptions)
.then(response => {
console.log("Successfully sent fcm message");
})
.catch((err) => {
console.log("Failed to send fcm message");
return sendSMS(details.phone_number, body);
});;
} else {
console.log("No fcm token found for uid", uid);
return sendSMS(details.phone_number, body);
}
})
}