TypeError：messaging.getToken 不是函数
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【中文标题】TypeError：messaging.getToken 不是函数【英文标题】：TypeError: messaging.getToken is not a function 【发布时间】：2021-09-15 08:59:45 【问题描述】：所以我正在开发一个 Firebase 云消息传递网络应用程序并收到错误：
Error: TypeError: messaging.getToken is not a function
我尝试了很多来解决它，也在谷歌上搜索过，但没有运气。 如果有人可以帮助我，我将不胜感激。
相同的代码在官方谷歌示例中运行良好。 以下是我收到此错误的行：
return messaging.getToken();
下面是整个代码：
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Clouding</title>
<script type="module">
// Import the functions you need from the SDKs you need
import initializeApp from "https://www.gstatic.com/firebasejs/9.0.2/firebase-app.js";
import getAnalytics from "https://www.gstatic.com/firebasejs/9.0.2/firebase-analytics.js";
import getMessaging from "https://www.gstatic.com/firebasejs/9.0.2/firebase-messaging.js";
// TODO: Add SDKs for Firebase products that you want to use
// https://firebase.google.com/docs/web/setup#available-libraries
// Your web app's Firebase configuration
// For Firebase JS SDK v7.20.0 and later, measurementId is optional
const firebaseConfig =
apiKey: "AIzaSyDOVN1qOGzsD6AI-2jA05LpfQIJ5aoCuD4",
authDomain: "clouding-aa740.firebaseapp.com",
projectId: "clouding-aa740",
storageBucket: "clouding-aa740.appspot.com",
messagingSenderId: "1059589787087",
appId: "1:1059589787087:web:cdd636057d2a921ccdd6ba",
measurementId: "G-CD2BEK39LZ"
;
window.addEventListener("click", (e) =>
switch (e.target.id)
case "btnPermissions":
initFirebaseMessagingRegistration();
break;
);
// Initialize Firebase
const app = initializeApp(firebaseConfig);
// const analytics = getAnalytics(app);
const messaging = getMessaging(app);
function initFirebaseMessagingRegistration()
Notification.requestPermission()
.then(function ()
messageElement.innerhtml = "Got notification permission";
console.log("Got notification permission");
return messaging.getToken();
)
.then(function (token)
// print the token on the HTML page
tokenElement.innerHTML = "Token is " + token;
)
.catch(function (err)
errorElement.innerHTML = "Error: " + err;
console.log("Didn't get notification permission", err);
);
// Don't forget your vapidKey here
getToken(messaging, vapidKey: "publicVapidKey" )
.then((t) =>
tokenElement.innerHTML = "Token is " + r;
)
.catch(function (err)
errorElement.innerHTML = "Error: " + err;
console.log("Didn't get notification permission", err);
);
onMessage(messaging, (payload) =>
console.log("Message received. ", JSON.stringify(payload));
notificationElement.innerHTML =
notificationElement.innerHTML + " " + payload.data.notification;
);
messaging.onTokenRefresh(function ()
messaging.getToken()
.then(function (refreshedToken)
console.log('Token refreshed.');
tokenElement.innerHTML = "Token is " + refreshedToken;
).catch(function (err)
errorElement.innerHTML = "Error: " + err;
console.log('Unable to retrieve refreshed token ', err);
);
);
console.log("clicked");
</script>
</head>
<body>
<main>
<h1>Welcome to Clouding</h1>
<div id="token" style="color:lightblue"></div>
<div id="message" style="color:lightblue"></div>
<div id="notification" style="color:green"></div>
<div id="error" style="color:red"></div>
<script>
messageElement = document.getElementById("message")
tokenElement = document.getElementById("token")
notificationElement = document.getElementById("notification")
errorElement = document.getElementById("error")
</script>
<button id="btnPermissions">Enable Firebase Messaging</button>
</main>
</body>
</html>
【问题讨论】：
【参考方案1】：知道了， 我还必须导入 getToken 方法。 下面是我应该写的新的 sn-p：
import getMessaging, getToken from "https://www.gstatic.com/firebasejs/9.0.2/firebase-messaging.js";
代替：
import getMessaging from "https://www.gstatic.com/firebasejs/9.0.2/firebase-messaging.js";
【讨论】：
还是同样的错误【参考方案2】：https://***.com/a/70046707/5681567 查看给出的链接。 react native 也出现了同样的问题。 试试这种东西
messaging ().getToken()
【讨论】：
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