How to get a Facebook access token on iOS

Question

iOS beginner here. I have the following code:

[facebook authorize:nil delegate:self];
NSString *string1=[facebook accessToken];
NSLog(string1);

The log shows: miFOG1WS_7DL88g6d95Uxmzz7GCShsWx_FHuvZkmW0E.eyJpdiI6IjNZZkFBY1c5ZnBaMGEzOWM2RzNKbEEifQ.LNjl06lsOQCO9ArVARqff3Ur2XQHku3CMHDBKkpGg351EB33LGxVv96Hh5R860KDJL0cLq8QezSW0GovYxnhUucOwxlITV364sVKDXIzC3bAn9P_74r2Axl1SgOaTyMMkQ_aSQ2OWh-8d3Zn9BDt3pXVWzBLJ9I4XAosnw0GjuE

This seems too long to be an access token. I read it's supposed to be only 40 characters long. What am I doing wrong?

Nur Iman Izam · Answer 1 · 2015-05-21T07:13:37.077

121

Using v3.2.1 as of March 20, 2013 of Facebook SDK.

NSString *fbAccessToken = [[[FBSession activeSession] accessTokenData] accessToken];

If you prefer dot syntax,

NSString *fbAccessToken = [FBSession activeSession].accessTokenData.accessToken;

For those using Swift;

var fbAccessToken = FBSession.activeSession().accessTokenData.accessToken

Update for v4.1.0 SDK onwards

Objective-C

NSString *fbAccessToken = [FBSDKAccessToken currentAccessToken].tokenString;

Swift

var fbAccessToken = FBSDKAccessToken.currentAccessToken().tokenString

edited May 21 '15 at 07:13

answered Mar 21 '13 at 15:36

Nur Iman Izam

1,613
1
15
12

Quick follow up question - would this token generated be the "long-term" access token described in their docs? Thanks! – daspianist Aug 15 '13 at 18:45
I believe all tokens obtained from native client is considered "long-term". The only time its "short-term" is probably for web clients. Feel free to correct me if I'm wrong. You can read more about it here: https://developers.facebook.com/docs/facebook-login/access-tokens/ – Nur Iman Izam Nov 07 '13 at 18:02
What is FBSession? Where do I access that? – Andrew K May 17 '15 at 22:44
Nevermind, I am using the new version of Facebook SDK. – Andrew K May 17 '15 at 22:46
@AndrewK I've updated the answer to reflect the updated SDK. Cheers! – Nur Iman Izam May 19 '15 at 15:44
2

For Swift the syntax is FBSDKAccessToken.currentAccessToken().tokenString – Amir May 21 '15 at 03:00
1

For Swift 3, FBSDKAccessToken.current().tokenString – Ammar Mujeeb Mar 13 '17 at 07:25

score 8 · Answer 2 · edited Feb 26 '13 at 08:26

8

If you are using the Facebook SDK you can use the FBSession object to get and accessToken. If the user authenticated to the app and you have an active session use:

NSString * accessToken = [[FBSession activeSession] accessToken];

to get the access token.

It worked for me.

edited Feb 26 '13 at 08:26

Lukas Eder

211,314
129
689
1,509

answered Nov 13 '12 at 12:55

abdus.me

1,819
22
34

2

The method suggested by abdus.me is deprecated in the 3.2 SDK. The proper way to access the accessToken is the one suggested by Nur Iman Izam: if ([[FBSession activeSession] isOpen]) { NSString *fbAccessToken = [[[FBSession activeSession] accessTokenData] accessToken]; ... } – Rool Paap Apr 02 '13 at 14:22

score 4 · Answer 3 · answered Apr 01 '15 at 15:40

4

For SDK 4.0

NSString *fbAccessToken = [[FBSDKAccessToken currentAccessToken] tokenString];

answered Apr 01 '15 at 15:40

enagra

2,296
1
18
19

score 4 · Answer 4 · answered May 17 '15 at 22:46

4

For Swift 1.2 and FB SDK 4.1:

var fbAccessToken = FBSDKAccessToken.currentAccessToken().tokenString

answered May 17 '15 at 22:46

Andrew K

1,571
1
17
25

score 4 · Accepted Answer · edited May 23 '17 at 12:00

4

You can use delegate method:

- (void)fbDialogLogin:(NSString *)token expirationDate:(NSDate *)expirationDate

for more information you can refer to the following question :Facebook Access Token

edited May 23 '17 at 12:00

Community

1
1

answered May 16 '11 at 11:07

Sarah

1,595
3
25
34

1

I'm not sure about the length there is no fixed one as you can see on that question http://stackoverflow.com/questions/4408945/what-is-the-length-of-the-access-token-in-facebook-oauth2 – Sarah May 16 '11 at 11:27

score 3 · Answer 6 · answered Sep 20 '19 at 08:01

3

For FacebookLogin (0.9.0) Swift

import FacebookLogin

AccessToken.current?.tokenString

answered Sep 20 '19 at 08:01

kuadbam

31
1

score 2 · Answer 7 · edited Jun 18 '16 at 22:00

2

- (IBAction)facebookClick:(id)sender {

    FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];

     [login logOut];

    login = [[FBSDKLoginManager alloc] init];


    login.loginBehavior = FBSDKLoginBehaviorWeb;
    [login logInWithReadPermissions:@[@"email"] fromViewController:self handler:^(FBSDKLoginManagerLoginResult *result, NSError *error) {
        if (error)
        {
                 NSLog(@"Process error");
             //   [login logOut];
         } else if (result.isCancelled) {
             NSLog(@"Cancelled");
            // [login logOut];
         } else {
             NSLog(@"Logged in");
             [self getUserInformation];
         }
     }];
}

edited Jun 18 '16 at 22:00

Tunaki

132,869
46
340
423

answered Jun 18 '16 at 21:44

sandip jadhav

91
5

Whilst this code snippet may solve the question, [including an explanation](http://meta.stackexchange.com/questions/114762/explaining-entirely-code-based-answers) really helps to improve the quality of your post. Remember that you are answering the question not only for this person, but for readers in the future, who might not know why your code is the way it is. – Claudia Jun 18 '16 at 22:05

score 1 · Answer 8 · answered Apr 13 '16 at 12:56

Check the code below for getting the access_token from ACAccountStore :

ACAccountStore *accountStore = [[ACAccountStore alloc] init];
ACAccountType *accountType =  [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];
NSDictionary *FBOptions = [NSDictionary dictionaryWithObjectsAndKeys:FACEBOOK_APP_ID, ACFacebookAppIdKey,@[@"email"],ACFacebookPermissionsKey, nil];

[accountStore requestAccessToAccountsWithType:accountType options:FBOptions completion:
 ^(BOOL granted, NSError *error) {
     if (granted) {

         NSArray *facebookAccounts = [accountStore accountsWithAccountType:accountType];
         FBAccount = [facebookAccounts firstObject];
         NSLog(@"token :%@",[[FBAccount credential] oauthToken]);

     } else {
         //Error
         NSLog(@"error getting permission %@",error);
         if([error code]== ACErrorAccountNotFound){
             NSLog(@"Account not found. Please setup your account in settings app"); 
         }
         else {
             NSLog(@"Account access denied");
         }

     }
 }];

score 1 · Answer 9 · answered Jul 13 '18 at 13:16

1

Swift 4 (2018)

FBSDKAccessToken.current().tokenString

answered Jul 13 '18 at 13:16

Awais Fayyaz

2,275
1
22
45

score 0 · Answer 10 · answered Dec 06 '14 at 08:48

0

For people who need to use swift with SDK 3.2.1:

let token = FBSession.activeSession().accessTokenData.accessToken

answered Dec 06 '14 at 08:48

Brian

30,156
15
86
87

How to get a Facebook access token on iOS

10 Answers10

Swift 4 (2018)

Linked