我正在使用Twilio可编程聊天，并希望向移动应用程序（iOS，Android）和网络应用程序发送推送通知。我遵循了Twilio 中给出的步骤 不过，我也没有在Web和移动应用程序中收到通知。 以下是我实现的代码。
<script src="https://www.gstatic.com/firebasejs/5.3.0/firebase-app.js"></script>
<script src="https://www.gstatic.com/firebasejs/5.3.0/firebase-messaging.js"></script>
<script src="firebase-messaging-sw.js"></script>
<script>
// Initialize Firebase
var config = {
apiKey: "******************",
authDomain: "*****.firebaseapp.com",
databaseURL: "https://******.firebaseio.com",
projectId: "******",
storageBucket: "******.appspot.com",
messagingSenderId: "***************"
};
firebase.initializeApp(config);
</script>
在用户登录期间，我正在执行以下操作
/* Generating token for Twilio chat */
$scope.URL = Path + "/twilio/chat/generateToken";
var data = {"identity":localStorage.userId,"deviceId":guid(),"pushCredentialSid":"**********"}
RestAPIService.post($http,data,$scope,$scope.URL, function ( responsesData ) {
if(responsesData.data.status == "success"){
var twilioToken = responsesData.data.token;
Twilio.Chat.Client.create(twilioToken).then(function(twilioClient) {
twilioChatClient = twilioClient;
// Twilio notification
firebase.initializeApp(config);
if (firebase && firebase.messaging()) {
// requesting permission to use push notifications
firebase.messaging().requestPermission().then(function() {
console.log ("Notification permission granted.");
// getting FCM token
firebase.messaging().getToken().then(function(fcmToken) {
console.log ("token is:" + fcmToken);
// continue with Step 7 here
// passing FCM token to the `chatClientInstance` to register for push notifications
twilioChatClient.setPushRegistrationId('fcm', fcmToken);
// registering event listener on new message from firebase to pass it to the Chat SDK for parsing
/* firebase.messaging().onMessage(function(payload){
twilioChatClient.handlePushNotification(payload);
}); */
}).catch(function(err) {
// can't get token
console.log(err);
});
}).catch(function(err){
// can't request permission or permission hasn't been granted to the web app by the user
console.log(err);
});
} else {
// no Firebase library imported or Firebase library wasn't correctly initialized
}
/* Twilio notification */
});
}
});
我不确定如何继续进行，并且不知道我是否错过了任何事情。如果有人实施了从Web应用程序到移动应用程序的推送通知，请指导我进一步进行操作。
答案 0 :(得分：0)
Twilio的与此有关的文档确实希望您了解Firebase，因为在通常情况下，Twilio对于其他所有功能都非常有用时，他们的文档却相对缺乏。我自己遇到了问题，因为我使用的是空白服务工作者，但是文档清楚地告诉我们该怎么做。为了使前台通知和后台通知都能正常工作，在服务工作者中，这与https://firebase.google.com/docs/cloud-messaging/js/receive上的示例完全一样。在Service Worker中配置Firebase之后，至少需要做的就是'const messages = firebase.messaging（）'来使前台通知正常工作。对于后台通知，您可以按照Google的示例来使用messages.setBackgroundMessageHandler（），因为这对于大多数用例而言可能是最好的。另外，如果您想进一步控制通知的处理方式，则可以轻松地将事件侦听器用于push事件。即
// This event is where you'll handle background message. You can still do self.registration.showNotification() here.
self.addEventListener('push', function (event) {
if (event.data) {
console.log(`firebase-messaging-sw (background handler): This push event has data: ${event.data.text()}`);
//self.registration.showNotification('Title', { body: 'Background Message body.', icon: '/firebase-logo.png' });
}
else {
console.log('firebase-messaging-sw(background handler): This push event has no data.');
}
});
顺便说一句，由于这是服务人员，所以您无需在页面中引用此脚本。它是服务人员，navigator.serviceWorker.register（）将确保它在您的应用程序后台运行。
对于Twilio，您需要为接收通知的用户创建一个带有令牌（带有聊天授予）的Twilio客户端。使用Twilio的代码示例，但为了清楚起见，还添加了其他内容，该代码示例应有助于：
firebase.initializeApp({
apiKey: 'api-key',
authDomain: 'project-id.firebaseapp.com',
databaseURL: 'https://project-id.firebaseio.com',
projectId: 'project-id',
storageBucket: 'project-id.appspot.com',
messagingSenderId: 'sender-id',
appId: 'app-id',
measurementId: 'G-measurement-id',
});
const handleNotificationsForUser = function (userId) {
let getChatClient;
let accessToken = '';
// I'm getting my token from C# code. Leaving this here for clarity.
$.ajax({
url: `chat/accesstoken/${userId}`,
dataType: 'JSON',
async: false,
success: function (data) {
accessToken = data.result;
console.log(`accestoken: ${accessToken}`);
getChatClient = new Twilio.Chat.Client.create(accessToken);
}
});
getChatClient.then(function (chatClient) {
if (firebase && chatClient) {
if ('serviceWorker' in navigator) {
navigator.serviceWorker.register('/Scripts/firebase-messaging-sw.js').then(function (registration) {
firebase.messaging().useServiceWorker(registration);
console.log(`handleNotificationsForUser(): ServiceWorker registration successful with scope: ${registration.scope}`);
if (firebase && firebase.messaging()) {
firebase.messaging().requestPermission().then(() => { // requesting permission to use push notifications
firebase.messaging().getToken().then((fcmToken) => { // getting FCM token
console.log(`fcm: ${fcmToken}`);
chatClient.setPushRegistrationId('fcm', fcmToken);
// This is where we would handle the foreground. This registers an event listener
// on new message from firebase for you to do something with it.
// The chat window must have focus for messaging().onMessage to work.
firebase.messaging().onMessage(function (payload) {
console.log(`init - firebase.handleNotificationsForUser() - (foreground handler): This push event has data: ${JSON.stringify(payload)}`);
chatClient.handlePushNotification(payload);
// todo: your implementatation for UI here
});
}).catch((err) => {
console.log(`handleNotificationsForUser(): Can't get token. ${err}`);
});
}).catch((err) => {
console.log(`handleNotificationsForUser(): Can't request permission or permission hasn't been granted to the web app by the user. ${err}`);
});
} else {
console.log("handleNotificationsForUser(): No Firebase library imported or Firebase library wasn't correctly initialized.");
}
}, function (err) {
console.log(`handleNotificationsForUser(): ServiceWorker registration failed: ${err}`);
});
}
} else {
console.log('handleNotificationsForUser(): no firebase.js imported');
}
});
}
我希望这对尝试在网上进行此操作的人有所帮助。