I'm using php sdk to have an app post to a wall of a random page as an app, not admin.
$facebook->api('/'.$page_id.'/feed/', 'post', $attachment);
Error returned is:
The user hasn't authorized the application to perform this action
The facebook object already has a app id and app secret, so access token for app is set, yet it won't allow the app to post to a page.
What am I missing here?
The user who is using your app needs to give your app permission to post on their behalf - if you want to post as the page itself you should read the page login docs at https://developers.facebook.com/docs/howtos/login/login-as-page and ensure you're definitely using the Page Access Token to make the post
Related
I am pulling my hair out trying to understand what Facebook wants me to do to post to a FaceBook Page as a System User that has Admin and Page Privileges to and Owned by our business (We have Facebook Business Manager).
In a nut shell all I want to do is make this call:
https://graph.facebook.com/v2.5/${MyPageID}/feed
What I don't get is the access_token part.
I can generate access tokes for Apps, for Pages but all result in 403 returned from FaceBook. I have gone as far and checking every box available on the generate access token popup on the graph api and still I get 403 "Forbidden" so I am detailing the little I understand of the insanity that is FaceBook Auth in the hope that someone can explain where I am going wrong.
1) To Post as a System User to a Page I have to Create a FB App (I Would prefer just to post direct to the pages and skip the App part, My System User has Admin Access on All pages)
2) To Access the App I need an App Token.
3) To Create an App token I need a User Token.
4) To Create a user token I need to log in to Facebook and have all sorts of permissions on the App. (I can't log in as the System User! FB asks me to login as myself. I am not sure if this breaks the Auth Token generated?)
5) Then there are all sorts of swapping tokens to get a Permanent App token, Another point of potential failure!
6) IF the stars and moon align and you stand on your head the permanent App key can be passed to the above call as the access_token
I don't understand how to link the Pages I want to post to with the App created. Do I have to have 1 App for Each Page?
I have got one page to work, We initially used that App to Auth against the Instant Article Graph API:
https://graph.facebook.com/v2.5/${MyPageID}/instant_articles
I could not use the above token for the /feed url, I had to generate a new token with extra publish permissions and the page published with no problems, however when I change the ${MyPageID} to another page using the same access_token I get the 403.
I tried Creating a new App, I have no clue how they link to a specific page So the App to me seems sort of redundant.
Any help with what I am doing wrong or how I can go about simply posting to various FB Pages with a System User using the /feed api ?
The calls are made form a Spring Boot Java APP using HTTP Posts.
How to get a System User Auth and Page Auth:
1) Generate a User Token for an App (Button above the System User):
https://business.facebook.com/settings/system-users/${System User ID}?business_id=${your_business_manager_id}
System user has Page Admin on each page you need to post to.
App is just an FB app, not sure what it does other that it is a grouping I generate a token against.
I chose: (manage_pages, publish_pages, publish_actions, pages_manage_instant_articles, pages_show_list)
2) Check your access token:
https://developers.facebook.com/tools/debug/accesstoken/?access_token=${The access token you got from the step above}&version=v2.12
This will provide you with the App ID the Token is for and how long it lasts (we need a Permanent token)
3) Using Graph API Explorer gets the Accounts this token has access to:
https://developers.facebook.com/tools/explorer/${Your FB APP ID}/?method=GET&path=me%2Faccounts&version=v2.12
4) Using the output above find Page Auth for each page you wan to publish to
5) Post to each page in turn:
https://graph.facebook.com/v2.5/${MyPageID}/feed
I am doing a static web page in my website, in which I am showing the like count of particular Facebook page. There is no kind of login required to see this web page. Also, I don't want to user to login with their Facebook account to see the Facebook page like count.
I have implemented this requirement by using Facebook app token.
API: "https://graph.facebook.com/PAGE_ID?access_token=APP_TOKEN"
But the problem here is, If I use the app token of already approved app by Facebook with some permissions (manage_pages) exists, it works. It is not working for the app token of newly created Facebook app.
I have sent the app for review to Facebook by requesting manage_pages permission, but they rejected the app and said that my website doesn't have the Facebook login functionality implemented.
Since it is not documented clearly, I have a doubt that do the app need to send for review if I want to get the Facebook page like count without Facebook login (By using Facebook app token)? If yes, what permission do I want to request?
Any help would be much appreciated.
First of all, you need to learn what Tokens there are:
https://developers.facebook.com/docs/facebook-login/access-tokens
http://www.devils-heaven.com/facebook-access-tokens/
For your problem, you can just use an App Access Token. There is no need for any permission or Login Review, the links above tell you exactly how to create one. Make sure you never use the Token on the client, especially because it includes the App Secret. Do the API call on the server only (file_get_contents or curl, if you use PHP).
If by "it does not work" you mean that you only get the id and the name, then it´s not about "not working", you need to read the changelog and search for "Declarative Fields": https://developers.facebook.com/docs/apps/changelog#v2_4
So if you want to get more than just id and name, the API call would be like this: https://graph.facebook.com/936299239766048?access_token=YOURAPPTOKEN&fields=id,name,likes,...
when I use
$facebook->api("/userId/feed/", 'POST', $attachment);
Facebook post to my friends wall who authenticated with my application.
I don't want this.
And when I use
$facebook->api("/me/feed/", 'POST', $attachment);
Facebook post to my feed only.
so I want my APP to post $attachment array to my feed (as me) and every authenticated user feed (as him) without posting to friends wall. (sure I have stream_publish permission from authentication process)
When you authenticate the user and the user authorizes your application's permissions, Facebook provides you with an access token for that specific user. You need to persist this access token in a database (or where ever you see fit). Each time you make a request to the Facebook API, you need to pass this access token.
So, you can post as a user on their own wall by using the /me/feed endpoint, but you need to pass the user's access token along with your request. The access token is how Facebook knows who "me" is referring to.
As an example, let's say I use your application. I authorize your application with my Facebook account and Facebook gives you an access token that represents me. I use your application to post a message on my wall: "Hello World!" You then submit a request to the /me/feed/ endpoint using my access token. The message "Hello World!" will show up on my Facebook wall and shows that it was posted by me.
I am wondering if it is possible to post to the wall of the Facebook app page created for using Facebook in iOS. Rather than use the user login to post to their own wall, I would like to post to the app's page with updates on open games. Is this possible to do?
Yes, it's possible. From http://developers.facebook.com/docs/reference/api/application/:
To perform the following operations as an Application Page, and not the current user, you must use the Application's Page access token, not the user access token commonly used for modifying Graph API objects nor the Application access token. This access token can be retrieved by issuing an HTTP GET to /USER_ID/accounts with the manage_pages permission. This will return a list of Pages (including Application profile pages) to which the user has administrative access, along with an access_token for each Page.
…
You can create a link, post or status message by issuing an HTTP POST request to the APP_ID/feed connection. To see more details please see links, posts, and status messages documentation.
To impersonate the Application when posting to the wall (i.e. post as the Application, and not the current user), you must use an Application Page access_token with the manage_pages and publish_stream permissions, as described under Application Access Tokens above.
So you first have to ask the API for an Application Page access token and then use this access token to post on the wall. The Facebook iOS SDK helps to construct the Graph API calls mentioned in the documentation cited above.
I want to develop a facebook application that make auto post to a facebook page
like this one http://apps.facebook.com/twitter/ but my application get post from other site
when user make a post in my site it will send to the facebook page even this user not loged in facebook or not page admin .
tnx for help
Yes, you can do this. You'll need to do an initial login to facebook through a webservice and request elevated rights (publish_stream and offline_access), and then save the authentication token that comes back. You can then reuse this token and post to a facebook wall without anyone having to explicitly login to facebook.
I did this using Hammock to create the webservice calls to facebook.