Facebook SDK iOS access code issue - ios

Question

My Project is to get Facebook Insights data of my Fanpage on my iPhone App.
I started by installing Facebook SDK for iOS to get Access Code & than using SampleLoginSample Sample Program provided with Facebook iOS SDK.
Its working Perfect & giving same response as in Facebook API Explporer for Query
[self.textNoteOrLink setText:
[NSString stringWithFormat:#"https://graph.facebook.com/[PAGEID]?fields=likes&access_token=%#",appDelegate.session.accessTokenData.accessToken]];
but if i am writing below Query its not giving me response as in Facebook Explorer API
QUERY:
[self.textNoteOrLink setText:
[NSString stringWithFormat:#"https://graph.facebook.com/PAGEID/insights/page_fans?access_token=%#",appDelegate.session.accessTokenData.accessToken]];
RESPONSE:
{"data":[
],"paging":{
"previous":"https:\/\/graph.facebook.com\/PAGEID\/insights\/page_fans?access_token=CAA...snip...h2l&since=1378984583&until=1379243783","next":"https:\/\/graph.facebook.com\/PAGEID\/insights\/page_fans?access_token=CAA...snip...h2l&since=1379502983&until=1379762183"}}
Can anyone help me to get access code with get_insights permission in Facebook iOS SDK?

Answer 1

In SLAppDelegate.h
Under the list of #property, add:
-(BOOL)openSessionWithAllowLoginUI:(BOOL)allowLoginUI;
In SLAppDelegate.m
Under applicationDidBecomeActive, add:
/*
* Opens a Facebook session and optionally shows the login UX.
*/
- (BOOL)openSessionWithAllowLoginUI:(BOOL)allowLoginUI {
NSArray *permissions = [[NSArray alloc] initWithObjects:
#"read_insights",
nil];
return [FBSession openActiveSessionWithReadPermissions:permissions
allowLoginUI:allowLoginUI
completionHandler:^(FBSession *session,
FBSessionState state,
NSError *error) {
[self sessionStateChanged:session
state:state
error:error];
}];
}
And:
/*
* Callback for session changes.
*/
- (void)sessionStateChanged:(FBSession *)session
state:(FBSessionState) state
error:(NSError *)error
{
switch (state) {
case FBSessionStateOpen:
if (!error) {
// We have a valid session
NSLog(#"User session found");
}
break;
case FBSessionStateClosed:
case FBSessionStateClosedLoginFailed:
[FBSession.activeSession closeAndClearTokenInformation];
break;
default:
break;
}
if (error) {
UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle:#"Error"
message:error.localizedDescription
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alertView show];
}
}
In SLViewController.h
At the end of viewDidLoad , add:
[appDelegate openSessionWithAllowLoginUI:NO];