With the Facebook iOS SDK code below, the log is always "(null)"
facebook = [[Facebook alloc] initWithAppId:#"xxxxxxxxx" andDelegate:self];
NSLog(#"%#", [facebook isSessionValid]);
Any ideas what could be going on?
%# is your problem. BOOL'ean values are not objects, so %# is not their string literal. Strangely enough, BOOL's are signed char but can't be NSlog'd as such. Here's how you would do it:
NSLog([facebook isSessionValid] ? #"Yes" : #"No");
To check whether your facebook session is valid or not, type
NSLog(#"facebook session status: %d", [facebook isSessionValid]);
It will print the YES/TRUE and NO/FALSE value into 1 and 0 respectively.
Creating the Facebook object doesn't create a Facebook session. Once you have the Facebook object, you can call the -(void)authorize:(NSArray *)permissions method, which will prompt the user to login, either through the Facebook app, Safari, or a popup (whichever is available in that order). Once the user successfully logs in, the session will have been created and the [facebook isSessionValid] call should return YES.
Related
Just like what the title says, is this a bug or is it really possible? I use the [FBSDKAccessToken currentAccessToken].tokenString to check whether an existing Facebook session is existing, then afterwards I'll use the [FBSDKProfile currentProfile].userID to get the session's userId.
However sometimes I encounter that [FBSDKAccessToken currentAccessToken].tokenString has a value but [FBSDKProfile currentProfile] is nil.
I use this for the auto-login feature of my application.
Thanks for your response!
So I have this code snippet:
if ([FBSDKAccessToken currentAccessToken].tokenString){
//proceed to auto login since Facebook is still logged in
NSLog(#"Facebook user id: %#",[FBSDKProfile currentProfile].userID)
}
The return of that log is nil.
if ([FBSDKAccessToken currentAccessToken].tokenString) {
[FBSDKProfile enableUpdatesOnAccessTokenChange:YES];
NSLog(#"Facebook user id: %#",[FBSDKProfile currentProfile].userID);
}
you need to call [FBSDKProfile enableUpdatesOnAccessTokenChange:YES] so that it automatically observes changes to the [FBSDKAccessToken currentAccessToken]
You may need to load the current profile, use this following snippet, after the callback runs you will get the profile data unless you don't have current token.
No email is outputted from the Facebook request. How do I get this? I need it for my login/signup process
- (void)request:(FBRequest *)request didLoad:(id)result{
NSLog(#"FACEBOOK RESULT %# ", result);
}
This is the initial request:
[facebook requestWithGraphPath:#"me" andDelegate:self];
The email property cannot be obtained without requesting additional permission to obtain it, see https://developers.facebook.com/docs/reference/login/email-permissions/.
My application uses the following code to first check whether the Facebook session is valid (self.facebook is a Facebook object initialized with initWithAppId):
if (![self.facebook isSessionValid]) {
NSArray* permissions = [NSArray arrayWithObjects: #"email", nil];
[self.facebook authorize:permissions];
} else {
// Since we have a valid session we can get the userinfo
[self getFacebookUserInfo];
}
Your application prompt will indicate "Using this app requires: * Your basic info * Your e-mail address" If the user authorizes you to obtain this information your access token returned will have bits in set to allow you to obtain the e-mail address, and the following will work:
-(void)getFacebookUserInfo {
[self.facebook requestWithGraphPath:#"me" andDelegate:self];
}
assuming your -(void)request:(FBRequest *)request didLoad:(id)result method is available (which it appears that it is).
Note that the full flow of SSO (Single Sign On) is not given here in this post, you'll need to go through https://developers.facebook.com/docs/tutorials/ios-sdk-tutorial/#implementsso in detail.
Note also that you may be using a deprecated API for iOS 6, you should look at https://developers.facebook.com/docs/tutorial/iossdk/upgrading-from-2.0-to-3.1/ before going further.
With 2.4 api, parameters are used in order to specify which user data items you are interested in receiving.
E.g.:
FBSDKGraphRequestConnection *connection2 = [[FBSDKGraphRequestConnection alloc] init];
FBSDKGraphRequest *selfRequest = [[FBSDKGraphRequest alloc] initWithGraphPath:#"me?"
parameters:#{#"fields":#"id,name,first_name,last_name,verified,email"}];
[connection2 addRequest:selfRequest
completionHandler:^(FBSDKGraphRequestConnection *innerConnection, NSDictionary *result, NSError *error) {
if (error) {
NSLog(#"%#", error);
return;
}
if (result) {
// get user data
NSMutableDictionary *facebookUserData = [NSMutableDictionary dictionaryWithDictionary:result];
NSLog(#"result=%#", result);
HOWEVER, they apparently messed up big time, as email is NOT CURRENTLY being returned for DEVELOPERS, and currently in development Apps.
Incidentally, it is IMPOSSIBLE to submit bugs on Apps in development, as they require approved apps in the feedback system...
I wonder how do they think we are going to make sure that something works BEFORE submitting an app for approval, or what is the logic of asking for an App Store id of an App which can't be approved BEFORE Facebook integration can be tested to the fullest.
Besides, who is the genius at Facebook who decides to break working code one day from another?
I am trying out adding facebook integration in an app using the new (beta) facebook ios sdk 3.0. All I would like to is post a status update to facebook. I used a FBLoginView to login to facebook. I put my app id in the plist as instructed on facebook. I put in some code to post to facebook.
(void)viewDidLoad
{
[super viewDidLoad];
NSArray *perms;
perms = [NSArray arrayWithObjects:#"status_update", nil];
FBLoginView *loginview =
[[FBLoginView alloc] initWithPermissions:perms];
loginview.frame = CGRectOffset(loginview.frame, 5, 5);
loginview.delegate = self;
[self.view addSubview:loginview];
// Do any additional setup after loading the view, typically from a nib.
}
- (IBAction)poststatus:(UIButton *)sender {
NSString *message = [NSString stringWithFormat:#"Test staus update"];
[FBRequestConnection startForPostStatusUpdate:message
completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
[self showAlert:message result:result error:error];
}];
}
- (void)showAlert:(NSString *)message
result:(id)result
error:(NSError *)error {
NSString *alertMsg;
NSString *alertTitle;
if (error) {
alertMsg = error.localizedDescription;
alertTitle = #"Error";
} else {
NSDictionary *resultDict = (NSDictionary *)result;
alertMsg = [NSString stringWithFormat:#"Successfully posted '%#'.\nPost ID: %#",
message, [resultDict valueForKey:#"id"]];
alertTitle = #"Success";
}
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:alertTitle
message:alertMsg
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alertView show];
}
The odd thing is, this code works ONCE. After authenticating the user for the first time, I can post ONE status update successfully. After that, all subsequent attempts will fail with a FBiOSSDK error 5 (in the console, Error: HTTP status code:400). The only way to fix this is to remove the app from the facebook account and re-authenticate. I'm not sure what the problem is. I looked online for solutions but couldn't find anything. If anyone knows how to fix this, please let me know. Thanks
com.facebook.sdk error 5 is always irritating while working with Facebook iOS sdk. Most of the times it comes with addional in console Error: HTTP status code:400. Its a perception that there is a bug in Facebook iOS sdk that produces this error randomly. I think this error occurs for some certain reasons and sdk do not provide actual reason of error when it occurs.
Several Possible Reasons
Every request in sdk is accomplished with completion blocks that we actually pass as argument in completionHandler. This error occurs when a block is in progress and made another request. A simple example might be If you have written request to post on Facebook (startForPostStatusUpdate::) on some button action. On single button tap it would work fine but if you double tap on button it will throw this error com.facebook.sdk error 5
If you are trying to post when your current session is not opened. e.g. Once sign in with Facebook then kill the app then reopen and then try to share on Facebook, Result -> com.facebook.sdk error 5. In this case try to reopen session using
Facebook do not allow same status to be posted repeatedly, they think it might be some kind of spam e.g. If you are trying to update status and you have hard coded a string lets say #”This is a test status update” you are posing again and again. After 5 to 10 attempts they wont allow you to do anymore. Resulting com.facebook.sdk error 5. If this is the scenario you should change your status string and try updating.
Facebook has defined a limit for a particular user to post status using sdk. e.g If you are trying to update status and you have done lets say 15 to 20 status updates. They wont let you do more Resulting -> com.facebook.sdk error 5. In this scenario try to unauthorize the app from your Facebook account and reauthorize it OR try using other Facebook account
It seems there might be no answer to the issue. I have checked FB samples coming with SDK, in these examples also the same error happens. So it means after few status updates (15-20) Facebook reaches limits for that particular user. If you log-out for that user and log-in as another user, you can successfully post.
If I will find any extension to limit settings I will reply.
Also Facebook doesn't allow for the same Post.
Use a proxy !
FB ios SDK is just a wrap to an HTTP request to graph.facebook.com/....?access_token=.....
So you can easily replicate the request or use an HTTP proxy to see the real server answer (which is not error 5 !).
I've spent hours on this and can't get it to work. Basically I just want a button in my app that will 'Like' itself on Facebook.
I've created the app on dev Facebook and have an associated App Page.
In my code I request these permissions:
_permissions = [NSArray arrayWithObjects:#"publish_stream", #"publish_actions", #"user_birthday", nil];
I can retrieve a profile picture fine, but when I try to 'Like' using this code:
NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
_facebook.accessToken, #"access_token",
nil];
[_facebook requestWithGraphPath:#"329756493773381/og.likes" andParams:params andHttpMethod:#"POST" andDelegate:self];
I get this error response:
(facebookErrDomain error 10000.)" UserInfo=0x20090590 {error={
code = 200;
message = "(#200) Requires extended permission: publish_actions";
type = OAuthException;
}}
When logging in on the app, Facebook asks me for permission to see my birthday, and tell's me it will Post on my behalf but it seems to not get the publish_actions permission.
Is there something i'm missing that I need to do?
I see Temple Run has a Facebook Like button and offers bonus coins for pressing it. This is what I wish to achieve.
EDIT -------
I've changed my permissions to just #"publish_actions", #"user_birthday" and now the auth dialogue says
"This app may post on your behalf, including objects you liked and
more"
which seems to be the publish_actions permission, however I was still getting the error
message = "(#200) Requires extended permission: publish_actions";
I've changed this line:
[_facebook requestWithGraphPath:#"329756493773381/og.likes" andParams:params andHttpMethod:#"POST" andDelegate:selrf];
to this:
[_facebook requestWithGraphPath:#"329756493773381/og.likes" andDelegate:self];
and I do now get a response back, although it doesn't post a 'like'
This is the result response:
{
data = (
);
paging = {
next = "https://graph.facebook.com/329756493773381/og.likes?sdk=ios&sdk_version=2&access_token=BAAGeAp3ZBGwoBAPICjlgB5zK0YECyP8yElf8hJoMrx8Qs4vjeZAK5PlXFAVbGM1JyXHE0wZBvU0aBeCzCUTZBejQgoJ44CAIQsrG64TfrHdxjMqWD&format=json&offset=25&limit=25";
};
}
Any idea what to try next?
EDIT 2 ---------------
I'm making progress with this.
I've added the users id to the graph request like this
NSString *graphPath = [NSString stringWithFormat:#"%#/og.likes",facebookID];
and used these parameters
NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
#"AAAGeAp3ZBGwoBABvKjsPZAoQQNG9cDPJI2v2TI8acyyPSNtm9ZBkfydHqVZAjSKWSbLuvFwxyxSrCts7kFZCnh7Y6f5PFNlWb6smF8XF33wlRZBgfLyhT1", #"access_token",
#"http://samples.ogp.me/329756493773381", #"object",
nil];
and now I get a like showing up on my timeline :-)
I was using the access-token supplied by the Facebook login, but it seems the one supplied by the graph object is different.
Now, the like that i'm seeing has this pattern:
Darren likes object on MyAPP
Is it even possible to have it as
Darren likes MyAPP
with it linking to the app Facebook page?
Thanks
Check if you have done the steps below:
https://developers.facebook.com/docs/opengraph/tutorial/
"Note: The user-prompt for this permission will be displayed in the first screen of the Enhanced Auth Dialog and cannot be revoked as part of the authentication flow." - link
Try this if you havent already:
Auth Dialog -> Configure how Facebook refers users to your app - > Add publish_actions permissions.
https://developers.facebook.com/docs/opengraph/authentication/
"To enable the new Auth Dialog, go to the App Dashboard, and enable the Enhanced Auth Dialog setting in the Advanced section of your app." -link
Hope this helps!
This seems to be the same problem I was having on this SO question:
Facebook iOS SDK 3.0, implement like action on a url?
But if you want to like you facebook page in the app, there is no way to do that in Objective C. Only with the javascript Like button which you can generate here:
https://developers.facebook.com/docs/reference/plugins/like/
The way Temple Run does it is to display the Like button in a web-view, so their like button is actually on their server, this is perhaps an ugly-hack but will work for liking a page.
As soon as the user is logged in, I retrieve the user info using this code:
[_facebook requestWithGraphPath:#"me" andDelegate:self];
It worked for the first few times, but it eventually returned an error. I thought it was a session thing since I have "offline_access" on my permissions. I logged out from Facebook and compiled again from a clean build and it still returns this error:
Error Domain=facebookErrDomain Code=10000 UserInfo=0x54a2930 "Operation could not be completed. (facebookErrDomain error 10000.)"
I'm assuming my access token is valid since I can do posting. Am I right to assume that?
I also noticed that whenever I log in, Facebook doesn't redirect me to ask permission if I allow my app to access my user info.
Can anyone tell me what's wrong?
Answer on authorize command seems to be different. Now, there's no expiration date as it was before. I tried with forcing isSessionValid to return TRUE, and it works.
isSessionValid checks accessToken AND expirationDate. As there's no expiration date, the function return FALSE.
Don't know if it's a temporary modification from facebook, or definitive one. In this case, SDK must be fixed, I presume. And a new call must retrieve expirationDate.
Here's a temporary fix I've used. You can find this method line 46 in FBLoginDialog.m
- (void) dialogDidSucceed:(NSURL*)url {
NSString *q = [url absoluteString];
NSString *token = [self getStringFromUrl:q needle:#"access_token="];
NSDate *expirationDate = [NSDate distantFuture];
if ((token == (NSString *) [NSNull null]) || (token.length ==0)) {
[self dialogDidCancel:url];
[self dismissWithSuccess:NO animated:YES];
} else {
if ([_loginDelegate respondsToSelector:#selector(fbDialogLogin:expirationDate:)]) {
[_loginDelegate fbDialogLogin:token expirationDate:expirationDate];
}
[self dismissWithSuccess:YES animated:YES];
}
}
Does everyone with this issue request the offline_access permission? It's the only reason I can see an expiration date not being sent. Maybe try not requestion the offline_access permission.
I've had same problem. I checked my privacy settings,permissions,other method etc..., but I couldn't solve it.
Many sites said "check permission for accessing to offline_access/read_stream/publish_stream",I think these are important too,but I couldn't fix it.
Then I found following solution finally, it works fine.
You should change "safariAuth:YES" to "safariAuth:NO" on "Facebook.m" file.
- (void)authorize:(NSArray *)permissions
delegate:(id<FBSessionDelegate>)delegate {
[_permissions release];
_permissions = [permissions retain];
_sessionDelegate = delegate;
//[self authorizeWithFBAppAuth:YES safariAuth:YES];
//You can get auth_token in iOS App!
[self authorizeWithFBAppAuth:YES safariAuth:NO];
}
Then you can use following method to get your own info if you are logged in.
[facebook requestWithGraphPath:#"me" andDelegate:self];
if you are not logged in, You should login by following method first.
permissions = [[NSArray arrayWithObjects:
#"email", #"read_stream", #"user_birthday",
#"user_about_me", #"publish_stream", #"offline_access", nil] retain];
if (![facebook isSessionValid]) {
[facebook authorize:permissions delegate:self];
}
Following post saved me.Thank you so much!
How to retrieve Facebook response using Facebook iOS SDK
Good Luck & Happy-coding!
Thank you.
I've had this problem, mainly because my Facebook account has is maxed on privacy.
It's most likely the permissions that you passed in during login. BY default it will only give access to public info. Remember there is less and less info that is public in Facebook.
Try changing your permission to something like "read_stream",nil
Then instead of [_facebook requestWithGraphPath:#"me" andDelegate:self];
Try using [_facebook requestWithGraphPath:#"me/home" andDelegate:self];
This should return your news feed.
Worked for me 5 mins ago.
Not much to add here, doesn't work here too. I use the iOS SDK to post to the stream and it worked until yesterday. Today my client called me and complained. Ugh.
I have requested the offline access permission and of course the "publish_stream" permission...