How to use

requestPermission

function

in

Module

messaging()
   .requestPermission()
   .then(() => {
    this.getToken(onRegister);
   })
   .catch(error => {
    console.log('[FCMService] request permission rejected ', error);
   });

const authorizationStatus = await messaging().requestPermission();
console.log("authorizationStatus.....", authorizationStatus)
if (authorizationStatus) {