Firebase v9授权.创建用户后，currentUser为空

Question

这是我的JS代码:

import { ref } from "vue"
import { projectAuth } from '../firebase/config'
import { getAuth, createUserWithEmailAndPassword, updateProfile } from 'firebase/auth'
const error = ref(null)
const isPending = ref(false)
const signup = async(email, password, displayName) => {
error.value = null
isPending.value = true
try {
const res = createUserWithEmailAndPassword(projectAuth, email, password)
console.log(projectAuth.currentUser)
if (!res) {
console.log('Could not complete the signup')
throw new Error('Could not complete the signup')
}
console.log(projectAuth.currentUser)
await updateProfile(projectAuth.currentUser, {displayName})        
error.value = null
isPending.value = false
return res

} catch(err) {
console.log('ERROR: ' + err.message)
error.value = err.message
isPending.value = false
}
}
const useSignup = () => {
return {error, signup, isPending}
}
export default useSignup

我的ve3应用程序在用户注册时调用此脚本中的signup函数。createUserWithEmailAndPassword函数成功，用户显示在firebase中。但是我还想为我的用户添加一个显示名，所以我试图使用updateProfile函数来做到这一点，但是有一个问题。

问题是projectAuth。currentUser是空的，即使创建用户后，我不知道为什么??

Answer 1

createUserWithEmailAndPassword()方法返回一个promise。由于您的功能是async，请尝试添加await:

const res = await createUserWithEmailAndPassword(projectAuth, email, password)
console.log(projectAuth.currentUser)

或者，您可以直接从res将User对象传递给updateProfile:

const { user } = await createUserWithEmailAndPassword(projectAuth, email, password)
await updateProfile(user, { displayName })