user's email is always NULL - Spring Social Facebook Login

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According to Facebook's official documentation, email access is given to any app provided user accepts and grants permission when login using Facebook.

I've double checked our app definition and I can see email should be accessible.

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I'm using the latest available from Spring Social 

<spring-social-security>1.1.4.RELEASE</spring-social-security>
<spring-social-core>1.1.4.RELEASE</spring-social-core>
<spring-social-facebook>2.0.3.RELEASE</spring-social-facebook>

Users successfully login using Facebook as a provider as well as Google+ and Twitter.

Unfortunately for all cases email is NULL except for my own user.

There are two scenarios where email could be null though

  • if someone signed up for Facebook with a phone number instead of an email address, the email field may be empty
  • This field will not be returned if no valid email address is available

I've triple checked that by accessing a friend's of mine account which

  1. It's got a valid email verified
  2. It's got a phone number associated with it
  3. We are friends with each other
  4. His phone and email are visible for his friends

I go to the GraphApi explorer but no email is ever returned.

Any advice? Thank you.

facebook-graph-api facebook spring email
3 Answers

As @felipe mentioned, it required to set permission/scope to get email during facebook login in spring social.

If you are using XML format instead of java class for config then you can be defined scope as follow. 

 <bean id="connectionFactoryRegistry"
              class="org.springframework.social.security.SocialAuthenticationServiceRegistry">
            <property name="authenticationServices">
                <util:list>
                    <bean class="org.springframework.social.facebook.security.FacebookAuthenticationService">
                        <constructor-arg value="${facebook.clientId}"/>
                        <constructor-arg value="${facebook.clientSecret}"/>
                        <property name="defaultScope" value="email"/>
                    </bean>
                </util:list>
            </property>
        </bean>
        <alias name="connectionFactoryRegistry" alias="connectionFactoryLocator"/>

I spent a few hours to find a way to set'scope' via XML config. so posting solution here that can be helpful to others.

Ref:-https://github.com/timeu/GWA-Portal/blob/c4fffb0cc4aeb295d9eef7c642c7a25090560014/genophenbrowser-server/src/main/resources/META-INF/spring-social.xml

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