Javascript Firebase消息传递getToken()未解析
我正在给messaging.getToken()打电话,但承诺永远无法实现Javascript Firebase消息传递getToken()未解析,javascript,firebase,rxjs,firebase-cloud-messaging,Javascript,Firebase,Rxjs,Firebase Cloud Messaging,我正在给messaging.getToken()打电话,但承诺永远无法实现 let msging const msgTokenPromise = navigator.serviceWorker.register('/sw.js') .then(reg => { if(firebase.messaging.isSupported()) { msging = firebase.messaging() // m
let msging
const msgTokenPromise = navigator.serviceWorker.register('/sw.js')
.then(reg => {
if(firebase.messaging.isSupported()) {
msging = firebase.messaging()
// msging.onTokenRefresh = msging.onTokenRefresh.bind(msging)
msging.useServiceWorker(reg)
return msging.requestPermission()
} else throw "messaging not supported"
})
.then (() => {let prom = msging.getToken();
console.log("tokenProm", prom);
return prom
})
.catch(err => console.log('permission error', err))
const msgToken$ =
concat( from(msgTokenPromise)
, defer(() => Observable.create(msging.onTokenRefresh).pipe(switchMap(() => from(msging.getToken()))))
)
msgToken$.subscribe(currToken => {console.log('currToken', currToken)}
我在then控制台中将日志作为未决承诺获取,但从未记录令牌。找不到此问题的解决方案,也找不到错误。我正在使用rxjs
更新:当我清除缓存和服务工作程序并重新启动时,它现在就解决了。所以我的问题变成:什么会导致getToken()调用无法解析