Not getting Email and public profile using Facebook 4.4.0 SDK - ios

Question

I am currently working on Facebook SDK 4.4.0. Before 4.4.0 version, in 4.3.0 we were getting email, public_profile with the following code
NSArray *arrFBPermission = [[NSArray alloc]initWithObjects:#"email",#"public_profile", nil];
[loginUsingFB logInWithReadPermissions:arrFBPermission handler:^(FBSDKLoginManagerLoginResult *result, NSError *error){
[[[FBSDKGraphRequest alloc] initWithGraphPath:#"me" parameters:nil] startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error){
if (!error){
NSString *fnm = [result valueForKey:#"first_name"];
NSString *lnm = [result valueForKey:#"last_name"];
}
else{
Nslog("%#", error localizedDescription);
}
}];
}
Now in the New SDK (i.e. 4.4.0) I am not getting these values. Why? I want email, first_name, last_name, id from Facebook.

Answer 1

With Facebook 4.4 SDK there is a slight change.
You must have to request the parameter with the FBSDKGraphRequest which you want from Facebook account.
In your code there is nil in parameters :
Update your code with the parameters like as :
[[[FBSDKGraphRequest alloc] initWithGraphPath:#"me" parameters:#{#"fields": #"id, name, link, first_name, last_name, picture.type(large), email, birthday, bio ,location , friends ,hometown , friendlists"}]
If you want to login with Facebook with the use of Custom Button then you can use the complete code as follows :
- (IBAction)btnFacebookPressed:(id)sender {
FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];
login.loginBehavior = FBSDKLoginBehaviorBrowser;
[login logInWithReadPermissions:#[#"email"] handler:^(FBSDKLoginManagerLoginResult *result, NSError *error)
{
if (error)
{
// Process error
}
else if (result.isCancelled)
{
// Handle cancellations
}
else
{
if ([result.grantedPermissions containsObject:#"email"])
{
NSLog(#"result is:%#",result);
[self fetchUserInfo];
[login logOut]; // Only If you don't want to save the session for current app
}
}
}];
}
-(void)fetchUserInfo
{
if ([FBSDKAccessToken currentAccessToken])
{
NSLog(#"Token is available : %#",[[FBSDKAccessToken currentAccessToken]tokenString]);
[[[FBSDKGraphRequest alloc] initWithGraphPath:#"me" parameters:#{#"fields": #"id, name, link, first_name, last_name, picture.type(large), email"}]
startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {
if (!error)
{
NSLog(#"resultis:%#",result);
}
else
{
NSLog(#"Error %#",error);
}
}];
}
}
I hope it will work for you.