I'm using AWS Amplify to add social signing. With google I'm getting the email of the user but it's missing in facebook.

This is my code:

  federatedSignIn(provider: any): void {
    switch (provider) {
      case 'facebook':
          console.log("Authenticating using Facebook");
          Auth.federatedSignIn({ provider: CognitoHostedUIIdentityProvider.Facebook });
          break;
      case 'google':
        console.log("Authenticating using Google");
        Auth.federatedSignIn({ provider: CognitoHostedUIIdentityProvider.Google });
        break;
    }
     
  }

This is what the "Pre sign-up" Lambda sees as an event.

{
    "version": "1",
    "region": "us-east-1",
    "userPoolId": "us-east-xxxxxx",
    "userName": "Facebook_123456",
    "callerContext": {
        "awsSdkVersion": "aws-sdk-unknown-unknown",
        "clientId": "123456abcd"
    },
    "triggerSource": "PreSignUp_ExternalProvider",
    "request": {
        "userAttributes": {
            "email_verified": "false",
            "cognito:email_alias": "",
            "phone_number_verified": "false",
            "cognito:phone_number_alias": ""
        },
        "validationData": {}
    },
    "response": {
        "autoConfirmUser": false,
        "autoVerifyEmail": false,
        "autoVerifyPhone": false
    }
}

Userpool settings

Attribute mapping