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If I delete a photo from facebook, does the link remain valid? If some photo was deleted, but I still have the link (possibly in a JSON file) will I be able to post the photo again based on the link saved in my JSON file? Also will photos and videos on facebook keep their addresses, or might they be changed over time?
According to this Ars Technica article from August 16, 2012:
http://arstechnica.com/business/2012/08/facebook-finally-changes-photo-deletion-policy-after-3-years-of-reporting/
Three years later, deleting your photos on Facebook now actually works
After years of photo hoarding, Facebook now deletes user photos within 30 days.
I am sure if you wanted to follow up with the reporter who wrote the story, she would respond. Her page is located here: http://arstechnica.com/author/jacqui-cheng/
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I want to know if its possible to create Facebook app that continuously update users profile picture. I can't see anything in the docs. Do you know if this is possible and if so any docs on implementing it?
Thanks in advance.
It is not possible for the User Profile. There is no way to update the profile picture with the API directly.
There are many Stackoverflow threads about this already, this one is very old but the answer is still correct: Facebook API/PHP - Is it possible to change a user's profile image via FB Graph API?
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How do you subscribe to the real time API to user photos changes in order to get the likes and comments of user uploaded photos when they are liked and commented? Are there any necessary app settings or specific graph api calls that need to be made?
Regards
Have a look at the docs at
https://developers.facebook.com/docs/graph-api/real-time-updates/v2.4
Keep in mind that you can only receive user updates if the user has given your application the appropriate permissions.
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I was researching for retargeting ad companies and I visited xxxx company at their own website (outside Facebook) and about 30 minutes later when I was checking my facebook account I started seeing ads from that company (which I am sure I have never seen before). Also I am not a "fan" of the company or have liked the page on Facebook so I am pretty sure it has to do with me visiting their URL.
Is it possible to target people who have visited my/any URL outside facebook? Till now I thought the only way of targeting people on Facebook was using their graph data.
Thanks!
That sounds like Facebook Exchange.
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Does anyone knows, it is possible to add a automatic photo to FB timeline in certain year. For example, I have this app where user click a button, then automatically will post a photo in the year 1983. Does FB allow that to happen?
When publishing to the open graph, you can in fact set the time so that you can post a past event.
There's an official document/toturial for that, part of the Open Graph docs: Publishing Past Actions.
Hope this is what you're after.
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This morning dynamically generated links to FB pages from our app stopped working. Link to a page like this http://www.facebook.com/pages/125567350861413 used to work just fine, now it requires page name http://www.facebook.com/pages/Daniels-Real-Estate/125567350861413
Why would this be changed? Was there a problem with old pages link format?
We tweaked our code to take into account page name and made it work. But if a user changes the name of a page the link to this page will break, until we refresh the list of pages in our db. We'll write a chron job that will refresh the list of page names for all users using our app multiple times a day, but we'd prefer not having to do that.
Anyone else ran into this issue? What was your workaround (other than the above)?
While this is probably an off-topic question, you can get the page url using the graph api:
http://graph.facebook.com/125567350861413 and looking at the link property. As to why Facebook changed this, you would have to ask them at their developer group or log a bug.