As a developer, can I browse posts published through my app? - facebook

I found the section below on Facebook Developer. Does Facebook provide a way for me to browse the posts by my users, or do I need to store the post ID and write my own dashboard?

It depends which SDK you are using. In general, Facebook does not offer a solution on their own, and if you are using the JavaScript SDK for the postings there is no way to get to the message.
That being said, the only way to get the messages posted via the JS SDK is the following:
The user has to authorize your app
You have to store the access token of the user
You have to store the Post-ID of every post so you can make an API call to get the message
Remember that those user access tokens are valid for ~2 hours only, so you have to use an extended one (up to 60 days valid). After those 60 days there is no way to read the messages anymore, so you would have to store them in your database if you need/want them later. Also keep in mind that the user can remove your app and invalidate the token.
If you are using the PHP SDK for posting (which only works for users who authorized your app), then you can just store the message value in your database because you need to get the message anyway (from a textfield, for example). But be sure to tell the user what you will store, also why and for how long, for privacy reasons.
Summary: The only way to do this (without getting problems with access tokens) is to let the user authorize your app, after every publish you have to use the new post id to get the message with an API call and to store it in your database. This is valid for the PHP SDK and the JS SDK.

Yep, there's no way rightnow, by which you can view the posts published through you're app. The only way you can achieve this is by storing the post_id for every published post, and create a script that will fetch the posts data, when provided with the post_id's

Related

Graph API empty events list of page [duplicate]

Using the latest version (2.12) of the Facebook API I'm trying to get (public) events for a page, using the Graph API Explorer.
However, I can't seem to get it working:
When I hover over the greyed out "id" or "name" on the left, it says "Field is empty or disallowed by the access token".
Now the page I'm using as an exmple here is Techcrunch, and they have plenty of events coming up. So "empty" doesn't seem to be the issue.
On the "disallowed" side I've checked the API reference on https://developers.facebook.com/docs/graph-api/reference/page/events/.
However, I can't seem to find any issue here either. It says "Reading Page events requires a valid Page access token or User access token with basic permissions.".
What am I missing here? Any hints are greatly appreciated!
Visit https://developers.facebook.com/docs/graph-api/changelog/breaking-changes#pages-4-4
Currently Facebook is not returning events for pages using Pages API unless you use an user accesss token and that user has been invited to any of the events of the page or is attending/interested in any of the events of the page.
As unknow_b said :
currently to access events you can also use a user endpoint such as ‘/me/events’ or ‘/me/events/not-replied’ using an access token valid for that user. you can get the events that the user was invited to or is going/interested
But the access token user, is only working for 1 hour !
Does someone have another better idea?
I'm trying to do the same thing: getting public events from a page. Related to the above suggestions:
I tried the short-lived user access token two weeks ago, which worked for a short time. Now it does not anymore. Does it for any of you?
Both the long-lived user token, a page token generated with either a short- or long-lived user token do also not return any events.
At https://developers.facebook.com/docs/apps/review/#platforms, Facebook states:
Beginning April 4, 2018, all apps, including those formerly approved, must undergo App Review in order to gain access to the Events API, Groups API, and Pages API. Apps accessing the Events API and Groups API will lose access and require review once App Review resumes.
So being reviewed might help. I will report further.
Update 1: an answer on this related bug reports states it more clearly:
App review required to use the following edges: GET /page/events and GET /me/events
Meanwhile they cancelled all pending review requests for the Graph API 3.0 changes, so I have to resubmit.
Update 2: My project got rejected & I'm not bothering to continue it now.
Yep. Facebook has taken down the Graph API for page access tokens. I had this code in production for 2 years and it worked great. 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 just created a python script, you can see here. It queries the given facebook page and it's events, and puts the data into a mysql table.
It looks like it won't be working anymore due to the scandal with Facebook Analytics (see Why does Facebook Graph API say my account is non-active?).
In the popular plugin facebook-events-by-location-core, you can take a look into the issue#29 discussion. It's well explained there, and I don't think so there's a way we'll get the data in a public API available anymore.
There were also some rumours it was a competition for their (dead?) Facebook Local app, but not sure about this.
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
OR
There is also an extend tool in the access token debugger (just click on the debug and the extend button is bottom left): https://developers.facebook.com/tools/accesstoken/
Yes , we had a working product back in 2016 ( almost like it's successor Fb Local ) . We were monetised and ready and selling events tickets on the messenger chatbot.
Idea was to solve discovery + booking for hyperlocal events. We went out of business and now its a heart ache to see Fb local.
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How do I get a facebook user's most recent messages with another user?

I'm working on a web application in which I show the last time the current user (who authenticates with FB and supplies all relevant permissions) user interacted with another user. Example, my ID is 1526632 and would like to find the date of the last message sent between me and another facebook user (either by username, or id #).
I've been reading through their API and it seems this permission existed in version 2.4 of the Chat API but was since deprecated. Is there a new way for developers to get this information somehow?
My guess is this is not possible via the graph API. Assuming this is true, does facebook have unpublished IMAP access to a user's inbox? Or any other creative ways I can do this?
The Chat API is gone, as you have found out already. There is no replacement, what you want to achieve is not possible in any way. The user inbox is off limits now, i´m afraid.

How can I detect if a certain post on a Facebook page has been deleted?

I am planning to build a small side project that stores posts from particular public pages. And detect if they delete the post later. Something similar has been done for Twitter. But I couldn't find similar projects for Facebook.
Like this: http://politwoops.sunlightfoundation.com/
But for Twitter. I will do it in Python or C#
How can I go about it?
Any particular code or projects I can learn from?
The only way to check if a post is not there anymore on Facebook is to search for it with a User Access Token of the User who posted it. Every Object on Facebook gets a specific ID, you only have to check if that ID still exists. If not, you get an Error from the API.
For example: https://developers.facebook.com/tools/explorer/?method=GET&path=10203433018378479&version=v2.0
The path parameter is the ID of the Post.
Keep in mind that you need the read_stream permission for that, and you need to let Facebook approve it for other users or it will only work for Admins/Devs of your App. It is not very likely that you will get the permission approved for this though. It usually only gets approved for Apps on "Platforms without a native Facebook experience".
Edit: My bad, i was thinking about User posts, but your question was about Pages. In that case, all you need is an App Access Token (App-ID|App-Secret). The API Call would be the same, you just need to know the Post ID.
About Access Tokens:
https://developers.facebook.com/docs/facebook-login/access-tokens/
http://www.devils-heaven.com/facebook-access-tokens/
For getting the feed of a Facebook Page, see the Facebook docs (including code samples): https://developers.facebook.com/docs/graph-api/reference/v2.0/page/feed/
You can use graph api for this. If it's a public page, you can follow these steps:
Create your application in Facebook developers site
Setup the basic graph auth mechanism with your favorite language and get unexpired token.
Use your unexpired access token to do these tasks:
Enter the id of the pages you want to crawl http://graph.facebook.com/[insert page id or url here]/feed
Add post title, postID to your database.
Create a scheduled task on your server to do these tasks:
Select all / page based etc posts on your database and send a request to: http://graph.facebook.com/[insert post ID here]
if it returns it means it's still there. otherwise it will return an error.

iPhone App to read Facebook wall

I want to create an iPhone app that displays (among other things) a specific Facebook wall. For a good user experience I didn't want an app that required the user to have a Facebook account and I didn't want to force the user to have to log in to Facebook to see the latest "news" in the app. I started out by getting the wall RSS feed and tried parsing it ... I can "see" all the data I need ... but that is getting complicated quickly and has too many variables that are making the final results less than stellar. I have read through the Facebook iOS programming tutorials and it seems to me like the SDK forces the user log in, which I don't like.
My question ... Is there a way to use the Facebook SDK with hard coded profile credentials to access a specific wall without forcing the user to login? If possible, is that a recommended approach? Any other ways to skin this cat?
I have read through the Facebook tutorial and searched through many postings on this site but haven't found an answer to this ... sorry if this a newbie question and has already been answered.
Item I.2. of the Facebook API policy list says
You must not include functionality that proxies, requests or collects
Facebook usernames or passwords.
It sounds to me like that's what you're proposing to do; i.e., the user will be able to see a certain wall, but using hard coded credentials (not their own). In other words, your credentials are proxying for the user.
I do not know if it is technically possible to do this (I imagine it is) but I don't think it's a good idea, and I do think it's a violation of the Facebook API terms of service.
First you need to get the a access_token by parsing your app id and secret.
https://graph.facebook.com/oauth/access_token?client_id=YOUR_APP_ID&client_secret=YOUR_APP_SECRET
Then send following request to get the data you want. Note that only public data will be accessible.
https://graph.facebook.com/FACEBOOK_USER_ID/?access_token=ACCESS_TOKEN

Outside access to Facebook events

Let's say I own/control a Facebook page where events are posted. I'd like to display these events on another website (In my case, a WordPress blog, but that's not the important part) on an "Upcoming events" page.
What I'm unsure about is: Is the Facebook API usable "externally" like this? I've downloaded the PHP library and have a demo app running that works from within Facebook (i.e. emitting FBML that facebook.com interprets and displays to the logged-in user), but in my case I want a third party (my web server) to query Facebook every so often, rather than the site visitors directly requesting data (HTML/JSON/etc.) from Facebook itself.
Is this sort of thing possible with the Facebook API? How will my web server authenticate itself? What information do I have to store?
Note: I'm looking for information more at a "sequence diagram" conceptual level, not just asking for code. That part I can figure out myself. ;) Unfortunately, Google and the FB developer wiki have not been entirely forthcoming. What do I need to know so I can start coding?
This is a basic overview of how I've done it for a few of my clients who wanted similar functionality:
Create a pretty basic app that prompts for Extended permissions, specifically "offline_access" and whatever else you need
Store the resulting Session Key in your database with the UID
Create a secure, authenticated webservice for your app which allows you to get the info you need for a UID that you supply, using the session that you've stored in your database
On the website make requests to your app's webservice, being sure to cache the results for a certain period of time and only make a new request to your webservice once the cache has expired (I use 5-10 minutes for most of mine)
So basically your Facebook app acts sort of like a proxy between the website and the user, doing all of the authenticating and requesting using legitimate means.
I've used a webservice because I only wanted to maintain one Facebook app for multiple client's needs. It works like this (in a not-very-awesome ASCII art diagram):
Facebook User 1 \ / Client Website 1
Facebook User 2 --- Facebook App --- Client Website 2
Facebook User 3 / \ Client Website 3
Note: I've only done this for users, not pages, so your mileage may vary.
You can do Events.get with the Facebook API then supply the page/profile ID you'd like to get the events for. Depending on how your page is setup you may have to authenticate, simply use your Facebook account, since you should have access to all the events. oh and make sure you do plenty of caching so your not hitting Facebook on every page load.
AFAIK other than user info, you can't fetch any other data from facebook.
But you can try it other way - say create an app that stores events and other relevant information on a webserver and then your other website can easily access that info.