I am using facebook api 2.0 to allow users to use their Facebook profile data to fill up my custom form. (I don't want facebook's prefilled form). I am getting other information like first name, last name, email. But apparently Facebook api 2.0 has removed username from response object and I am unable to access it. I have observed that Response.link contains url of the person's profile and the portion after "www.facebook.com/" is identical to username. If we succeed in fetching link, we could get Username. But I am not sure this is true for all users. However when i try to access the link, I get link with app scoped id like this:
"www.facebook.com/app_scoped_user_id/XXXXXX/"
where last portion (XXXXXX) is some numerical id. Does anybody know how to access the link in the form of "https://www.facebook.com/username"?
Also, if we are not able to do that in 2.0 but we can in 1.0, then how to switch back to 1.0?
As https://developers.facebook.com/docs/apps/changelog#v2_0_api_versions is clearly stating
/me/username is no longer available
If your app is created after April 30th 2014, there's no way switching back to v1.0. If not, you can prepend /v1.0 to your request, but that will only work until April 30th, 2015.
If you only require current authorized user's username(or any other authorized user for your app), then it's possible.
First step, you call /v2.0/me?fields=third_party_id endpoint . You have to use authorized User Access Token (Authorized with basic scope, i.e. public_profile permission enough).
Or alternative way, you can use App Access Token instead. Of course you can't use me connection anymore, you have to explicitly to put User ID. For example, 12345678 shown on the folowing screenshot:
Second step, use App Access Token (User Access Token is not allow here) to call following FQL query:
SELECT username FROM standard_user_info WHERE third_party_id =
'example12345abcdef'
In which "example12345abcdef" is the third_party_id example you get from the first step.
p/s: please note that the user/app access token on first step must use the same app on second step. It's because third_party_id is tied to app.
Cheers :)
Note that username is optional on Facebook. By default a Facebook profile doesn't have a username
In any Facebook API response, you'll get the username, only if the user has set his username under his Facebook settings.
If you just need to show the user his name why not use the "name" field? It contains their first and last name both. I have changed my app to use name instead of "username".
Related
All mutual friends request made from my app server (node) (also tried the Facebook API explorer) suddenly started returning an empty array for the data field. I confirmed and validated my access token and appsecret_proof on the API explorer. Do you know what has changed or what the request below is missing?
Note: both users use the app and have granted user_friends permission.
I am using v2.12
request
{
url: 'https://graph.facebook.com/v2.12/{user-facebookid}?fields=context.fields(all_mutual_friends.limit(5000))',
qs: {access_token: 'XXXXX'
,
appsecret_proof: crypto.createHmac('sha256', clientSecret).update(accessToken).digest('hex')
}
Yep. Facebook has taken down the Graph API for page access tokens. The only way to retrieve data (or was a week or so ago), was a temporary user token that lasts about 2 hours. It's totally broken my band's schedule page. I've been through every avenue and even spoke with a facebook ad team employee on the phone that was aware of it. She seemed to empathize but had no solution for me. I would count on it being down for a while.
I have finally figured out a work around for this. On your fb application, you have to disable the secret key requirement. This can be found under the advance settings of your fb application console. It's called "
Require App Secret".
Once you generate a fb PAGE access token, you get a fb page token, and then extend it.
here is the token debugger:
https://developers.facebook.com/tools/explorer/
You can extend the access token programmatically as explained here:
https://developers.facebook.com/docs/facebook-login/access-tokens/expiration-and-extension
AND
https://developers.facebook.com/docs/facebook-login/access-tokens/#pagetokens
There is also an extend tool in the access token debugger.
I used to get the user's username in the API 1.0 fairly easily, using /me and getting the username property of the response object.
Now I'm getting this error with API 2.0:
"(#12) username is deprecated for versions v2.0 and higher"
The only way I found to get this until now was to use FQL, but now it seems deprecated.
Is there a way around this?
I don't mean to be unhelpful, but it appears access to username has been removed from the API, as far as I can tell. Places where an app may have been using username, such as in the old share dialogs, can no longer do that when used with the 2.0 API. I think its also a way of preventing apps from having access to usable unique identifiers outside of the app scope - any user IDs you retrieve under 2.0 API are specific to your app alone.
I found a simple workaround that involves a get request to Facebook. Instead of the username, Facebook will give you an ID that is unique to your application.
I have found that making a request to https://www.facebook.com/[profile_id] will then redirect to the user's real profile. The username can be extracted from the redirect URL.
Example:
> curl -i https://www.facebook.com/710290539
HTTP/1.1 301 Moved Permanently
Location: https://www.facebook.com/colinskow
(Note: Since I am the owner of the app in test mode, this could possibly be an exception. Please let me know in comments if you are able to confirm this in a production environment.)
As a workaround you can use the email as a unique identifier. Email address can be retrieved using "email" as the permission scope.
Facebook has removed the username field from the new API version. It is not possible to retrieve the username. But Facebook provides an application specific unique ID. If you need to share the same user between several apps you can use the newly introduced Business Mapping API. This allows to add all the required apps to a group. In this case the ID will be unique among all the apps in the group.
More information on Business Mapping API is available at https://developers.facebook.com/docs/apps/for-business 1
I need help to get email from users in my website. I cannot change permissions in my OAuth dialog.
I tried to ask for email permission in the authenticated referral option and User & Friend Permissions but when I click on the preview current dialog, I only get the user basic information.
What am I doing wrong?
Thanks.
First off, what language are you using, or what framework? Are you passing your permissions as an array of comma-delimited items to the scope URL request parameter, when you are retrieving the oAuth 2.0 access token? It should look like like this:
https://www.facebook.com/dialog/oauth?client_id=1657658326532836257&redirect_uri=https://www.google.com/&response_type=token&scope=publish_stream+user_about_me+user_activities+user_birthday+user_checkins+user_educa
Which URL are you calling to retrieve the e-mail address? You should be able to just use:
https://graph.facebook.com/me
The JSON field name is simply email.
On this page:
http://developers.facebook.com/docs/opengraph/using-app-tokens/
It describes how to get the app access token, yet the token it returns is different than the one in the open Graph "Get Code" example. The latter is the only one that works. How can I get the second access token using the API? When I try to use the first example, I basically get something back that looks like "application ID|secret key" which is different than the real access token.
as documentation states, you will get
access_token=YOUR_APP_ACCESS_TOKEN
string back from the API call. Even though it LOOKS like "application ID|secret key HASH" - it is a valid access token you can use to publish to user's wall. You can verify it's a proper access token using Debug toll from FB: https://developers.facebook.com/tools/debug - just paste the token there.
The reason it might not work for you is because you are trying to publish something to the user's wall who did not authorize your app. Look here: https://developers.facebook.com/docs/reference/javascript/ - for example of how to use your app ID to make user authorize the app. You need to request publish_stream permission for your app from user in order to be able to publish as the app to the user's wall.
And going back to the documentation:
Note that the app access token is for publishing purposes permitted by
the publish_actions and publish_stream permissions. You will be unable
to retrieve information about the status update post with the given ID
using the app access token. Instead, you should use a user access
token for such purposes.
hope that helps.
According to the documentation I must remove an apprequest when a user has accepted it. There is however a problem with this.
When I accept an apprequest, I will be redirected to my app. But in the url parameters only the apprequestid(s) are included. The userId of the current user is unavailable.
My app doesn't require authentication so I can't access the current users data.
How do I remove the apprequest for this user when I don't have acces to the userdata or accesstoken as described here:
The old method of the apprequest allowed me to extract the userid from the requestid. This is not possible anymore.
you have to have authentication to "tamper" with user data - that includes app invitations.
However with an App Access Token you might be able to delete the post without authenticating your user (you'll still have to aquire their UID - possibly from the signed_request . You can read at this link about app login and how to retrieve the correct access token.