React-native-apple-authentication: Apple login with 'Hide My Email' does not return the mirror email generated by Apple

[CristianHatz]

I have a problem. I don't know if it is an issue or not. Recently Apple made an update that allows user to hide their email by generating a new email that forwards all emails to the hidden one. My problem is when I try to performRequest:

const appleAuthRequestResponse = await appleAuth.performRequest({
requestedOperation: AppleAuthRequestOperation.LOGIN,
requestedScopes: [AppleAuthRequestScope.EMAIL, AppleAuthRequestScope.FULL_NAME],
});

The response should contain user's email and it is null. The same request works perfectly for 'Share my email' option. I think that in appleAuthRequestResponse.email should be the hidden email, as it is the shared one. Am I wrong?

[CristianHatz]

I found the mirror email by decoding identityToken with JWT, if someone has the same issue.

[mikehardy]

Interesting! I suppose firebase does this automagically as they just show up for me (after firebase digestion/regurgitation). This seems like something maybe worth documenting - if you want to give that a shot the github web UI makes doing pull requests for text files really simple by taking care of all the fork/branch stuff for you in the background

[mikehardy]

With no reproduction or logs there is not much we can do, but I will happily reopen this with actionable information, and of course conversation can always continue

Just want to set the tone in this repo for an issues list that is in control and doesn't have non-actionable stuff

[MorgadoKnivet]

Hey @mikehardy . I have the same error in my application. When I use hide email, the email return null and that happen on simulator and physical device.
`
const appleAuthRequestResponse = await appleAuth.performRequest({
requestedOperation: AppleAuthRequestOperation.LOGIN,
requestedScopes: [AppleAuthRequestScope.EMAIL, AppleAuthRequestScope.FULL_NAME],
});

    console.log("appleAuthRequestResponse " , appleAuthRequestResponse)

`
The result.

authorizationCode: "c2ff4e630479d4a68943d080338d42b4e.0.nrv..."
authorizedScopes: []
email: null
fullName:
familyName: "Morgado"
givenName: "Guilherme"
middleName: null
namePrefix: null
nameSuffix: null
nickname: null

identityToken: "eyJraWQiOiJlWGF1bm1MIiwiYWxnIjoiUl..."
realUserStatus: 1
state: null
user: "001576.1a6d722fe8cf40748af4fbee..."

I have am another application that have the same problem, but this work using the Firebase (The email is returned on userCredential ) .

      const appleCredential = firebase.auth.AppleAuthProvider.credential(identityToken, nonce);
      const userCredential = await firebase.auth().signInWithCredential(appleCredential);

"@invertase/react-native-apple-authentication": "^0.2.0",
"react-native": "0.61.5",

I tested in iPhone X and simulator iPhone 11 PRO (13.4.1)

[MorgadoKnivet]

I didn't configure "Sign in with Apple for Email Communication " In the projects I said before

[mikehardy]

Interesting - @MorgadoKnivet - are you saying that in the project using firebase where you get the apple relay emails populated, you have sign in with apple for email communication configured, and the one you don't get the email for, you do not have sign in with apple for email communication configured?

If that's correct, then we have a strong suspect for the root cause - it's probably sign in with apple for email communication

If that is incorrect, then firebase is getting the email somehow and that's the thing to figure out

[MorgadoKnivet]

I didn't configure sign in with apple for email communication on any projects.

A exemple where the hide email working using react-native-apple-authentication and react-native-firebase

[mikehardy]

That is what I see on my firebase project, but I have email configured. So it seems the variable is firebase or not. What is firebase doing on their side to pull the apple relay email for the "hide email" users?

[MorgadoKnivet]

I didn't configure nothing. It's firebase default configuration

[mikehardy]

Likewise, I didn't either. So how are they doing it? That's the answer to the "how can I do it" question. I don't have that answer but their auth code is open source in the SDK at least

[MorgadoKnivet]

I will try to configure the "sign in with apple for email communication"

[MorgadoKnivet]

Hey @mikehardy. We configured The Sign in with Apple for Email Communication. Unfortunately We could not configure the SPF. Even with this configuration done, the email keeps returning null.

[mikehardy]

I noticed something similar, slightly related. Maybe this will help.

I use firebase but this might be a general thing

• if a user without a firebase auth entry in firebase that has never used apple sign in uses apple sign in the first time? I get their email
• if I delete the firebase auth account, on a user that has used apple sign in before, and they sign in again? I do not get their email. But firebase auth knows it!? (they remember it? no idea)
• if I delete the firebase auth account, on a user that has used apple sign in before, and they go into iOS account settings and remove the app from apple sign-in, then they use apple sign-in again? I get the email

Test: remove the app from the apple account in account preferences, then try sign-in to your app again, see if you get the email. I bet you do

What to do then? I'm not sure, I use firebase auth and they just remembered the email and gave it to me, how, I don't know, perhaps by persisting the uid from first response forever and it matches again afterwards?, I don't know.

[maulikdhameliya]

Hello anyone still facing this issue? When I sign in with Apple and use "Hide My Email" its gives email as null. I read the whole thread but couldn't get the concrete answer.

[mikehardy]

When users sign in on my app the first time with hide my email I get the privacy relay email.

Every single time a user signs after the first time, you should expect null, according to the API documentation from Apple.

[marquina-abreu]

hi, i upgrade my project from 0.60 to 0.63.4 and also upgrade the version of the apple signin package and implemented the new steps of the doc and now it doesn't bring me email when I sign with firebase, why ?

as a result, in firebase it adds me the authentication but without email, therefore it gives me error

[marquina-abreu]

On facebook if you bring me EMAIL but with apple signin EMAIL is null

[marquina-abreu]

and this object does not contain the property EMAIL.

const dataDecode = jwtDecode(appleAuthRequestResponse.identityToken);
 console.log('DATA DECODE ', dataDecode)