share with facebook using Spring-Social and Spring Security - facebook-graph-api

Question

I have integrated social sign-in button [Facebook] with my web application. Its working fine using spring-social and spring security.
In my login.jsp I have:
<!-- Add Facebook sign in button -->
<button class="btn btn-facebook"><i class="icon-facebook"></i>facebook</button>
Now my registrion controller is: This is the place where I am getting a callback from facebook when the user tries to login for the first time from facebook and register the user in my Database.
#RequestMapping(value = "/user/register", method = RequestMethod.GET)
public String showRegistrationForm(WebRequest request, Model model)
{
LOGGER.debug("Rendering registration page.");
#SuppressWarnings("deprecation")
Connection<?> connection = ProviderSignInUtils.getConnection(request);
RegistrationForm registration = createRegistrationDTO(connection);
LOGGER.debug("Rendering registration form with information: {}", registration);
model.addAttribute(MODEL_NAME_REGISTRATION_DTO, registration);
return VIEW_NAME_REGISTRATION_PAGE;
}
And also the user is getting saved in UserConnection table.
For subsequent login also I am getting the updated connection in my WebRequest
Now I want to create a shareWithFacebook operation for a user who logged in in my application using signwithfacebook button.
For this my controller is:
#RequestMapping(method = RequestMethod.GET)
public String shareWithFacebook(WebRequest request){
Map<String, String[]> params = request.getParameterMap();
String[] head = request.getAttributeNames(WebRequest.SCOPE_REQUEST);
String[] head1 = request.getAttributeNames(WebRequest.SCOPE_SESSION);
return null;
}
Now when I am running this controller in debug mode , then I can see the Connection object is present in my WebRequest object in this controller,
How I can use this connection Object to make any operation, please help

Answer 1

no help from stackoverflow: but actually I got the solution , may it help someone else, thus posting the same:
add this in your social-xml config to initialize FacebookApiHelper
<bean id="facebookApiHelper" class="org.springframework.social.facebook.config.support.FacebookApiHelper">
<constructor-arg index="0" ref="usersConnectionRepository"/>
<constructor-arg index="1" ref="userIdSource"/>
</bean>
Then use the same in ur contoller to work with existing connection object with facebook.
#Controller
#RequestMapping("/facebook")
public class FacebookOperationController {
private static final Logger logger = LoggerFactory.getLogger(FacebookOperationController.class);
#Autowired
protected FacebookApiHelper facebookApiHelper;
#Autowired
UserIdSource userIdSource;
private UsersConnectionRepository usersConnectionRepository;
#Autowired
public FacebookOperationController(UsersConnectionRepository usersConnectionRepository)
{
this.usersConnectionRepository = usersConnectionRepository;
}
#RequestMapping(method = RequestMethod.GET)
public String shareWithFacebook(WebRequest request,Model model){
Facebook facebook = facebookApiHelper.getApi();
Connection<Facebook> connection = usersConnectionRepository.createConnectionRepository(userIdSource.getUserId()).findPrimaryConnection(Facebook.class);
return "tilesname";
}
}
Now we have connection and facebook , enjoy will all api..