get the facebook access token in iOS 6.0 - iphone

Question

I had implemented facebook SDK with the help of which able to get the facebook authentication as well as user info with the following code.
if(!self.accountStore)
self.accountStore = [[ACAccountStore alloc] init];
if(NSClassFromString(#"SLComposeViewController") != nil)
{
ACAccountType *facebookTypeAccount = [self.accountStore
accountTypeWithAccountTypeIdentifier:#"com.apple.facebook"];
NSLog(#"facebookTypeAccount..:%#",facebookTypeAccount);
NSArray *accounts = [self.accountStore accountsWithAccountType:facebookTypeAccount];
if (facebookTypeAccount) {
if ([accounts respondsToSelector:#selector(count)]) {
[self.accountStore requestAccessToAccountsWithType:facebookTypeAccount
options:#{ACFacebookAppIdKey:
#"key", ACFacebookPermissionsKey: #[#"email"]}
completion:^(BOOL granted, NSError
*error) {
if(granted){
NSArray *accounts = [self.accountStore
accountsWithAccountType:facebookTypeAccount];
[self fetchuserinfo];
}
}];
}
-(void)fetchuserinfo
{
NSString *accessToken = [FBSession activeSession].accessToken;
NSString *url=[NSString stringWithFormat:#"https://graph.facebook.com/me"];
NSURL *meurl = [NSURL URLWithString:url];
SLRequest *merequest = [SLRequest requestForServiceType:SLServiceTypeFacebook
requestMethod:SLRequestMethodGET
URL:meurl
parameters:nil];
NSLog(#" setting account %#",_facebookAccount);
merequest.account = _facebookAccount;
[merequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) {
NSString *meDataString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
returnedData = responseData;
NSLog(#" meRequest Respnse %#", meDataString);
if (returnedData!=nil) {
if(NSClassFromString(#"NSJSONSerialization"))
{
NSError *error = nil;
id object = [NSJSONSerialization
JSONObjectWithData:returnedData
options:0
error:&error];
if(error) { }
if([object isKindOfClass:[NSDictionary class]])
{
NSDictionary *results = object;
NSString *categoryString=[[results valueForKeyPath:#"picture.data"] objectForKey:#"url"];
NSString *userid=[results objectForKey:#"id"];
if (userid != nil)
{
self.gotUserDetails = YES;
}
NSString *username=[results objectForKey:#"name"];
NSString *email=[results objectForKey:#"email"];
NSUserDefaults *userId=[NSUserDefaults standardUserDefaults];
[userId setObject:userid forKey:#"userid"];
}
}
}
}
But to post the feed (https://graph.facebook.com/me/feed/access_token=) from this login user I need access token. If anyone know how to get the access token in iOS 6.0 please help me.
Thanks to all.

Answer 1

Rather than worrying about getting the token and passing that with you call, Apple have provided SLRequest which you can use. You specify the target URL and parameters and SLRequest deals (transparently) with the authentication, transmission and collection of the response data.
You may not actually get the token, but you still need to get authorisation and that authorisation is linked to the list of things you want to do. Your code currently just shows that you want to get the e-mail address, but you can add other permissions:
[accountStore requestAccessToAccountsWithType:facebookAccountType
options:
#{
ACFacebookAppIdKey : ...,
ACFacebookPermissionsKey : #[ #"email", #"read_stream", #"user_groups", #"user_videos" ]),
}
completion:^(BOOL granted, NSError *error) { ...
You need to check the Facebook documentation to find out what permissions you need to request from the user and fill them in for ACFacebookPermissionsKey.

Answer 2

//Try This
-(void)fetchuserinfo
{
NSString *accessToken = [FBSession activeSession].accessToken;
NSLog(#"%#",accessToken);
}
or
-(void)fetchuserinfo
{
NSLog(#"%#",FBSession.activeSession.accessToken);
}

Answer 3

facebook SDK 3.2 in iOS 7 & iOS 8 , it works fine for me.
You should import FacebookSDK/FacebookSDK.h
#import <FacebookSDK/FacebookSDK.h>
....
[self checkFBIDWithToken:[FBSession activeSession].accessTokenData.accessToken];
PS:"checkFBIDWithToken:(NSString *)tempToken" is a method.
facebook doc: accessToken