I have a file url (http://example.com/image.jpg) and I need to make an image post to a facebook fan page (already have the access token).
What is the best way to do this with the facebook PHP SDK?
It seams like I will need to some how load the image and then some how post it as multipart/form-data according to the api docs
No, you can also use the parameter url with the publicly reachable HTTP address of your image, instead of the source parameter, and send it as a normal POST request. (Mentioned here in last sentence of introduction: developers.facebook.com/docs/reference/api/photo)
That seems to be info for postings to a users wall not a fan page. The docs differ fan pages.
It works for pages as well. And #filepath is for real HTTP POST uploads using cURL (explicitly or implicitly by using the FB PHP SDK). With the url parameter you just pass the value http://example.com/image.jpg, nothing else. (Apart from message, title, …)
Related
I'm working on a service which can share url's to different social networks such as Facebook but I've run into some issues with how Facebook deals with it's own posts and content.
I've a page on my url, my-domain.com/share/u?URL where the URL parameter will be crawled and correct meta-tags and opengraph tags will be added to the page which then can be crawled by e.g. Facebook.
However, if I have a Facebook post URL (e.g. https://www.facebook.com/smashmag/posts/10154297276027490) and add this to my og:url meta-tag, facebook graph debugger reports it as a bug and when I try to share the custom url, it will not fetch or create a preview of it.
If I directly use the facebook share url with the post there are no issues (https://www.facebook.com/sharer/sharer.php?u=https://www.facebook.com/smashmag/posts/10154297276027490)
Is there any way to get around this or make facebook treat it's own URLs and posts as a valid og:url tag?
On my own service, I crawl facebook pages as well and here I can fetch the URL and create an embed post so this is not where the problem lies. It is simply when I want to share a custom URL on facebook, which actually is a redirect URL to a Facebook post URL.
Please let me know if I've explained myself unclear and I'll try to elaborate.
I have an iOS app that allows users to post pictures (along with a link, etc.) to their own Facebook feed using the Graph API's me/feed edge.
The images are generated by a PHP script on my server using GD to optimise the image. I would like to serve different images based on whether the feed is being viewed in the Facebook iOS app or on the Facebook website.
I have tried using the HTTP User Agent to detect if a user is viewing the feed item via the FB iOS app or the FB website. However, in both cases, the user agent is set as:
facebookexternalhit/1.1 (*https://www.facebook.com/externalhit_uatext.php*)
Any help on how to achieve this would be highly appreciated.
Cheers
Have you looked at all the request headers for both requests? Any difference you can spot between the two?
Alternatively, you can add a parameter to your own requested url from your iOS app; there you have control over the requested url. On your server you can then detect that parameter and render a different image.
I am trying to setup an automatic way to upload videos to YouTube using the YouTube API. The application needs the videos to be uploaded for some processing by YouTube. Currently, I am setting up the oauth2.0 piece and I am able to redirect the user to login with their information. However, when the user is then redirected back to my site with my specified redirect uri, I need to be able to accept custom fields on the end of the URL. Right now, the web server just redirects the user to the page I want, but strips off all of the information returned by YouTube about authentication. I do not know much PHP at all, but think that it might be the way to solve this problem. Essentially, I want to be able to redirect the user to a page on the website where the extra information is retained so that I can use it. Thanks for your help.
http://ocf.berkeley.edu/~gregory/youtubeTestCode/indexRedirect#access_token=ya29.AHES6ZS8kOZN2T59fKpoUE0t7roUXqTPWDAwTMvrhZ5TjlZO57JZNQ&token_type=Bearer&expires_in=3600
The format of the redirect is http://ocf.berkeley.edu/~gregory/youtubeTestCode/indexRedirect followed by #access_token=ya9232.jdfka7327293&token_type=Bearer&expires_in=3600
However, I have no page with this specific URL..
There are two authentication methods for YouTube - client-side and server-side. (Actually there are more, but I've never used the others).
Documentation is https://developers.google.com/youtube/2.0/developers_guide_protocol_oauth2 but I'l try to paraphrase the bits you need.
"client-side" is what you are using - you basically send the user over the a URL and let google do the work and get the access token back.
"server-side" is what you'll need (as you guessed). To convert, as opposed to sending the user off to a url that ends "&response_type=token", change this bit to "&response_type=code& access_type=offline"
When you get the call back, you have ?code=4/ux5gNj-_mIu4DOD_gNZdjX9EtOFf - hopefully you can read this as it's before the #
You then use a POST to send this code to the Google servers and it sends back the token in JSON. Taken from that page before:
POST /o/oauth2/token HTTP/1.1
Host: accounts.google.com
Content-Type: application/x-www-form-urlencoded
code=4/ux5gNj-_mIu4DOD_gNZdjX9EtOFf&
client_id=1084945748469-eg34imk572gdhu83gj5p0an9fut6urp5.apps.googleusercontent.com&
client_secret=hDBmMRhz7eJRsM9Z2q1oFBSe&
redirect_uri=http://localhost/oauth2callback&
grant_type=authorization_code
and response is:
{
"access_token" : "ya29.AHES6ZTtm7SuokEB-RGtbBty9IIlNiP9-eNMMQKtXdMP3sfjL1Fc",
"token_type" : "Bearer",
"expires_in" : 3600,
"refresh_token" : "1/HKSmLFXzqP0leUihZp2xUt3-5wkU7Gmu2Os_eBnzw74"
}
So "relatively" simply change, but you need the PHP part to do the POST as it requires your secret key (which you don't want to reveal through Javascript).
I'll leave you to Google on how to:
read parameters in PHP (hint - use $_GET['paramter name'])
send a POST message to Google using CURL.
An alternative is to check out YouTube SDK for PHP - these are pre-written libraries that contain the POST and the GET bits for you. But this uses something called "Zend" which can get complex. https://developers.google.com/youtube/2.0/developers_guide_php
I have created an app, and now i want to post a message on one of my pages wall with use of the new Graph API. Is this do-able?
below is the steps which i do
Using this to Get access code
https://www.facebook.com/dialog/oauth?client_id=1498653617947&redirect_uri=https://apps.facebook.com/post_on__my_page/index2.html&scope=email,read_stream,publish_stream,manage_pages,offline_access
Than use this to get access token
https://graph.facebook.com/oauth/access_token?client_id=1498653617947&redirect_uri=https://apps.facebook.com/post_on__my_page/index2.html&client_secret=seceret&code=AQDCqJNJnCvnFKVdbCyTp2vfzbT0ADbNgYsQ_2YtDdC_O2aIOwvkjx52HNcp3uiuBANJqOhb_M2sptB-lRrIECZxi5kZpzljez1J1oOtTp25gTnNDmV-RCVvR97DMiRAprNtwUBcstAotjsyYo5cNwJCWnkcgNigwhbQtE5Jp22sluVcZKhnO43cWQE#_=_
Now get page id and page access token from below
https://graph.facebook.com/me/accounts/?access_token=the_access_token_above
*use this to post on my page *
https://graph.facebook.com/1916117518646/feed?message:testmessage&access_token=aceess_token
any one please explain which point is wrong because instead of posting is just show posts details
i found that some thing wrong in this below code any one please suggest what and how to do
https://graph.facebook.com/1916117518646/feed?message:testmessage&access_token=aceess_token
I always highly suggest to people experimenting around for the first time to use the Graph API Explorer tool. It helps solidify the structure of the Graph and how to access it. See https://developers.facebook.com/tools/explorer
Another thing I always recommend is to lint the access_token you are trying to use. See https://developers.facebook.com/tools/lint. This is to ensure you have the right token with the correct permissions.
Also the access_token you use to post to a page must be a page token and not a user token. In your above example, it's unclear as to which one you're using since you've named both the same. I know you said you're using it, but with that variable name being the same, I always wonder.
Also the you need to do an HTTP Post and not an HTTP get to post a message. Again, play around in the graph API explorer until you can do it there. Once you've done it there, it's fairly trivial to do it with one of the SDKs.
You need to perform POST request, not GET, and pass parameters in POST body, not in the url
http://developers.facebook.com/docs/reference/api/user/#posts
http://facebook.stackoverflow.com/questions/691425/how-do-you-post-to-the-wall-on-a-facebook-page-not-profile
I have a Facebook application used as a tab in a fan page, that displays different information depending on whether tha user is a fan of that page or not.
Now I've been asked to have it post a message to a user's wall if they perform certain action (follow a link or whatever), and so far I haven't found a way to do that. All the documentation I have found refers to stand alone apps, and I've even seen it suggested (in the FB forums) that you can't get the auth token from an app.
So, i still think it can be done, but how?
If a user has authorized your app, you can post to her wall using the PHP SDK. See the PHP SDK api documentation for examples.
All apps have to be iframe apps now, so loading the JS sdk should be fine.
You have to get permissions first ->
http://developers.facebook.com/docs/authentication/#applogin
Then you can post using php with what Dhiren said, or, post with the fb.api function with JS ->
http://developers.facebook.com/docs/reference/javascript/FB.api/
Let me know if you need an example script.
Cheers