I made a few Facebook FBML Canvas pages (Facebook considers these to be Applications) for a company, and they requested that users who "Like" the page would be redirected to another page, or the page will display different content with AJAX.
I went through the Facebook Developers Documentation, but I can't find a clue on how to do it.
I'm sure someone has done it before, any suggestions?
I found this on the Facebook forum I think it might help you out!
How can i redirect when someone like/share?
I haven't tried it myself though!
Good luck!
You can use either the JS or PHP sdk to check if a user liked a page. See examples below...
Uses JS sdk to check if a user liked a page (can be any page, just set the page id). This can be used in a standalone app or from within a page tab. - http://unbound-media.com/facebook/how-to-tell-if-a-facebook-user-likes-your-facebook-application/
Uses PHP sdk to check if a user liked the page from a tabbed app (can only check if user liked the current page they're on). This method can also be converted to JS. - How to check if a user likes my Facebook Page or URL using Facebook's API
If you are dealing with facebook app tab page, the following code helps you to find isfan status
$signed = parse_signed_request($_REQUEST['signed_request'], 'YOUR-APP-SECRET');
if ($signed['page']['liked'] == 1) {
$fan = true;
} else {
$fan = false;
}
Visit this link for demo and source code.
Related
I've put a Like Gate on a few of my Facebook Pages and I'm getting a lot of complaints saying that people can't access the content via their mobile device since the mobile version of the facebook website, and the facebook apps for ios/android, don't support tabs on Facebook.
I see there are services out there (I'm not sure how legit they are) that offer a way to create a mobile like gate for your page tab, but I can't find any documentation on how they do it. These services are not suitable for me, because the content on my tab is custom and dynamic.
So, how can I create a interstitial page for a mobile page that requires the visitor to have liked my Page on Facebook before they can proceed? This has to work for new users, as well as existing users who re-visit the tab and without requiring an install to an application.
Thanks!
One approach you can take for a mobile site is to check that the user has liked the page in question via the JS SDK.
If you have a logged-in user to your application, you can Subscribe to the authResponseChange FB event within your JS SDK initialization, or call a function directly to make an API request to verify if the user is a fan of your page.
In your initialization:
FB.init({appId: YOUR_FB_APP_ID_HERE });
window.fbAsyncInit = function() {
// React to a user clicking an on-page Like button:
FB.Event.subscribe("edge.create", verifyUserLikesPage);
}
You can verify that the user likes the appropriate page in the like handler:
function verifyUserLikesPage() {
FB.api("/me/likes/"+FBID_OF_PAGE_TO_ENSURE_THEY_LIKE, function(apiResponse){
if (apiResponse.data && apiResponse.data.length > 0)
// User likes the page. Enabled them to proceed
else
// User does not like the page. Require they click Like.
}
}
More information on the edge.create subscribe via JS available here: https://developers.facebook.com/docs/reference/javascript/FB.Event.subscribe/
I can't create an app for my FB page, when I try to access http://developers.facebook.com/apps/ I get redirected to my page. Does anyone else have a similar issue?
Sounds like you are using Facebook as your Page and not you.
Select the option use Facebook as you from your page and then you should be able to visit http://developers.facebook.com/apps/ and create an App. Shortcut link http://developers.facebook.com/setup/
Once created you can add said app to your page (still using Facebook as you and not your Page).
I tried googling & checking stackoverflow for the possible solution but haven't found any yet, so would like to bring it up here again.
I have a Facebook page, page has multiple tabs, and one of the tab has a Facebook App (accessed only through the tab, redirect the http://apps.facebook.com/myapp to the page tab)
I have some content (say non-fan content) to be displayed to the user before he likes the page.but, I don't have any way to check if the user has liked the page unless he adds the app & fb documentation has stuff that can give me the required like FQL page_fan, url_like, api(/me/likes/FACEBOOK_PAGE_ID) but each one of this needs an accesstoken (which I cannot get before the user adds the app).
some of the posts on stackover flow says that is not possible without getting the user to add the app. but there are apps like static html, static iframe & others which provides this functionality, how ?
Please advise.
Facebook will POST a signed_request to your server when the user opens the page tab.
This is what you get when you parse the signed_request:
{
"algorithm":"HMAC-SHA256",
"issued_at":1309468031,
"page":{
"id":"xxxxxxxxxxxxxxx",
"liked":true,"admin":true
},
"user":{"country":"fr","locale":"en_US","age":{"min":21}
}
The important part is "page.liked" where you see if the user likes the page.
No permissions and no app authorization is needed for this to work.
Search the web about parsing the signed_request in your favorite web programming language i.e. php.
Having some issues with the feed dialog when attempting to post to a event or fan page. In my application I am using the JS API and FB.ui using the method feed.
But for a demonstration you can do it using the feed url too for example:
http://www.facebook.com/dialog/feed?app_id=131727613511269&to=287203454659917&redirect_uri=http://www.timeanddate.com/
After clicking share you get the:
Sorry, something went wrong.
We're working on getting this fixed as soon as we can.
Where:
app_id = your app
to = a event / fan page
redirect_uri = a url you are allowed to redirect to
note that the app has publish_stream permissions. (it also has manage_pages for fan pages)
The app in question by the way is: http://apps.facebook.com/tndcountdown/
Thanks,
Andy
EDIT:
An Example taken straight from the documentation:
http://www.facebook.com/dialog/feed?app_id=123050457758183&link=http://developers.facebook.com/docs/reference/dialogs/&picture=http://fbrell.com/f8.jpg&name=Facebook%20Dialogs&caption=Reference%20Documentation&description=Using%20Dialogs%20to%20interact%20with%20users.&message=Facebook%20Dialogs%20are%20so%20easy!&redirect_uri=http://www.example.com/response&to=287203454659917
just replace to=287203454659917 with an event.. (make a test one like it did there)
A few issues I've run into will dialog is that Facebook tries to fill in any missing data. So if you don't provide a description and caption, Facebook will try to scrape the page to get that content. Depending on how the page responds to the "scraping" Facebook will error out. I always make sure I include at least a space for those fields.
It seems the feed url you provided is similar to what is in the documentation. But the demo in the documentation has extra parameters.
I'm about to add page support to my Facebook app, which does the same thing as yours.
http://apps.facebook.com/countdown-timer/
As I posted here - Facebook Send Button - 'Sorry, something went wrong.'...
I had the same problem & worked out that this was due to linking to a Facebook page that did not have a vanity URL set up (i.e. http://www.facebook.com/CubicMushroom rather than http://www.facebook.com/profile.php?id=261963707177053). If you set up a vanity URL for the page it seems to work OK (providing you link to the vanity URL version of the page URL).
To claim a vanity URL, once you have a certain no of like (it used to be 25, but think it's a little lower now) visit https://www.facebook.com/username/
I'm working on a FBML fan page for a client. I need to perform a check to see if the current user is a fan of the page. I tried using the JavaScript API but I've found this is not compatible with FBML.
I have looked through the FBML page on the developer wiki and found checks for practically everything else but no is user fan check.
Any pointers in the right direction would be most appreciated.
Thanks in advance.
Try this instead:
https://developers.facebook.com/docs/reference/fbml/visible-to-connection/
Please don't make those "Become a fan 1st" pages with it though. They're basically spam.
Try this page:
https://developers.facebook.com/docs/reference/rest/pages.isFan/
This is a good article - for doing this task in fan page tabs (most easily done with the static FBML app).
http://thinkdiff.net/facebook/how-to-detect-fan-of-a-facebook-page/
Be sure to read the fine print - such as if you’re admin of facebook page, you all time see the fan restricted item and non fan restricted item.
The best solution is to parse signed_request. This method does not need app authorization by user.
$signed = parse_signed_request($_REQUEST['signed_request'], 'YOUR-APP-SECRET');
if ($signed['page']['liked'] == 1) {
$fan = true;
} else {
$fan = false;
}
Here is a guide to Check User is Fan of Facebook.