Facebook Can you check if someone has liked a third party page? - php

I'm really not sure if this is doable or not.
I'm working on a website at the moment third party companies can post content on this website.
For those companies we are going to include a Facebook like button so users can like them on Facebook.
When the page loads if there a way we can check and see if the user has already liked the brand? Assuming the user is signed in to Facebook.
Is they have we'd like to display slightly different content.
I think if this was my brand I could access the information via the API but with it being a third party I doubt that would work.

Related

Using facebook likes to access fb app

I have created an fb app using a page tab on my fb page. However before a user can access the app I would like the user to like my page first. Is there a way to do it?
Facebook banned this practice in 2014.
https://developers.facebook.com/blog/post/2014/08/07/Graph-API-v2.1/
You must not incentivize people to use social plugins or to like a Page. This includes offering rewards, or gating apps or app content based on whether or not a person has liked a Page. It remains acceptable to incentivize people to login to your app, checkin at a place or enter a promotion on your app's Page. To ensure quality connections and help businesses reach the people who matter to them, we want people to like Pages because they want to connect and hear from the business, not because of artificial incentives. We believe this update will benefit people and advertisers alike.
As a result, Facebook removed any technological ability to do this from the API:
The liked field will no longer be returned in the page property of the signed_request object for Page Tab apps created from today onwards. For apps created before today, from November 5, 2014 (90 days from today), the liked property will always return true regardless of whether or not the person has liked the page.
If you want people to like your page, make it worth liking.

Make facebook notify if an URL has hit a like or share

I am developing a web+app system and I would like to know if there is any way that Facebook tells me how many likes has an URL I post in a user wall.
What I would like is that when some users hits like, a GET (or POST) Request to my server is called so I can store the external hit in my database without having to update it every time.
Does it even exist?
Maybe FB.Event.Subscribe can help you?
From the docs:
FB.Event.subscribe allows you to define callbacks that will be called
when certain events take place on your site. These events include:
Logging in or logging out via Facebook Login
Someone likes or unlikes a page via an embedded like button
Rendering of social plugins
Comments are added or removed
Someone sending a message to your page or a friend via an embedded send button

Facebook like button and OAuth Access

I am connecting to the Facebook API using HybridAuth on the server side (backend is written in PHP). This is for a SaaS publishing application that is hosted on our servers. I understand the mechanics of OAuth and that once I accquire the appropriate permissions from the user, I can write and read from the Open Graph API, which in theory will allow me to do almost anything.
The problem is that I would like to use some of Facebook's social plugins. In particular, I would like to implement the like button so that it automatically appears for each blog post, article and page.
The problem is that the like button and the various Facebook plugins require an app_id. I would prefer not requiring users to add the developer app to their account and creating an app to get an app_id as it can be a confusing process for non-developers.
Is there anyway we can create or retrieve an app_id from open graph (which we can store and use to generate the like buttons and other facebook widgets)?
With the migrations, I understand that each liked URL will not have it's own page. Once the user clicks a like button on your site, he automatically likes your page. However, let's say I have a page called http://www.mystore.com/products/some-awesome-product and there are other similiar pages, all with a like button. Is it possible that when clicking like, the user automatically likes our Facebook page, but when an item is published in their news feed for the like, the URL links to that specific product? Effectively, is there a way for users to like multiple pages from my site?
Update: It looks like we can generate app_ids programmatically with the create application API in the legacy REST API. However, this does not seem to be an option with the graph API.
Seems like we cannot programatically create an app_id for an account. This is not an issue, as we will just create a small guide to guide our users through creating an app and submitting the app_id to us using a form. Not perfect, but should be easy to implement.
As for URLs, liking something will not automatically like your Facebook page. If href is blank, the current page will be liked. If you set your facebook page in the href parameter, then your facebook page will be liked.

Posting to User's walls as application using Facebook PHP API

I've been building a web app that uses facebook integration for easier registration/login and notifications for the users. However, for the notifications I want to be able to post to a users facebook wall when something happens on our site.
Really I see two possible problems with doing this. First being that the user will most likely not be logged in to our website when the notification needs to happen. Second I have not found a way to post to the feed using any identity other than the current logged in user.
So to reiterate exactly what I'm trying to do. When some action takes place on my site involving Bob, I want the websites application to post on Bobs wall notifying him of the action as if the application is one of Bobs friends. From some of the things I've seen while researching this, it seems as if facebook might not treat applications like users and I might have to go through a page to accomplish what I want. But really I'm ok with that.
What you need to do is to ask for the offline_access permission. Then you can store their graph id property after they login/authorize to your site's database. Then you just post to that graph id instead of instead of /me. In your case you would then POST a request to the "$user_graph_id/feed" endpoint with whatever parameters you usually have.

How to programmatically "press" a 'Like' button through a Facebook Application?

I'm developing this Facebook Application and I was wondering if it's possible (and how) to programmatically, through the Facebook PHP Graph API, press some 'Like' button on some page?
Of course, this is optional on my application... I'm still not ready to really explain what application I'm doing, but it would be interesting to code such a feature.
Is it possible somehow?
By your description it sounds like you're trying to get a user to like something without the users knowingly clicking a like-button. This sort of interaction is not condoned by Facebook, I think. There are various black-hatty ways to accomplish this though, one fairly elaborate one is descriped here: http://www.liquidrhymes.com/2010/08/25/smoking-hot-bartender-is-some-smoking-hot-facebook-spam/
UPDATE Sorry, I might be wrong. If you get stream_publish extended permissions from the user, you might be able to like posts on their behalf by doing a POST to /POST_ID/likes. See Publishing to Facebook in http://developers.facebook.com/docs/api
You cannot do this. Facebok wont let you do a POST to /POST_ID/likes, you can only do a get request to retrieve their likes. What you are trying to do is a violation of facebook's TOS. I would suggest just adding a like button and "forcing" them to like before they continue with your application. However, in my opinion even that is kind of silly because they can instantly go unlike it after they have used your application.
i was looking for the same thing, but not to force a user into liking something, but actually for their own protection.
here is where i come from: on a web site (maybe on multiple pages) there is an "I Like" button, implemented as described by facebook.
each time a user goes to that page, the browser will make a request to facebook, throught the iframe that contains the button, providing all the info that we are used to from a web server log file.
if the user has in the past logged in facebook and not cleared the cache. the request will also contain the cookie indentifying the facebook user.
so even more then analytics, facebook know all about the user activity on those pages.
so i wanted the user to only give this info when they decide to.
my solution was to have a button (as graphic only) on the page. when the user clicks it a new frame should open and only there the facebook code should be executed.
obviously on the new frame i could not put the normal "i like" code, since that would require a 2nd click for the user. at this point i would need the "programmatically clicking of the i like button".
it is not an opengraph solution, but it works: the frame just does a redirect to
http://www.facebook.com/share.php?u=URL

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