// 1.
$access_token="XXX";
$url0 = "https://graph.facebook.com/"
. "fql?q=SELECT+message,time,status_id+FROM+status+WHERE+uid=10000+"
. "AND+time>=1365481000+AND+time<=1365483292+LIMIT+0,1"
. "&access_token=" . $access_token;
$res0 = json_decode(file_get_contents($url0));
//2.
$url1 = "https://graph.facebook.com/"
. "fql?q=SELECT+fromid,time,text,object_id+FROM+comment+WHERE+object_id+"
."IN+(SELECT+status_id+FROM+status+WHERE+uid=$uid)+"
."AND+time>=$tm1+AND+time<=$tm2"
. "&access_token=" . $access_token;
$res1 = json_decode(file_get_contents($url1));
Showing posts with label facebook app. Show all posts
Showing posts with label facebook app. Show all posts
Tuesday, April 9, 2013
facebook fql format
pay attention to the "+" in the fql
get realtime update of user infomation using facebook app
you can configure the framework according to the official document at:
http://developers.facebook.com/docs/reference/api/realtime/
if succeed, you can get the infomation like:
{ "object": "user", "entry":
[
{ "uid": 1335845740,
"changed_fields":
[ "status" ],
"time": 1365483292 }
]
}
It means the user(whose id is 1335845740 ) updated his status (most likely to post a new status).
what I want to say is, the 'time' 1365483292 you got is not exactly correct.
I use fql to crawl the status data and get the status created date is around 1365483292, but not exactly the same, say 1365483291. However, for some other times, they are same.
So, if you got the update info as above, you should pay attention that "time" infomation.
if you still want to use this "time" info to crawl some latest data, you'd better use:
http://developers.facebook.com/docs/reference/api/realtime/
if succeed, you can get the infomation like:
{ "object": "user", "entry":
[
{ "uid": 1335845740,
"changed_fields":
[ "status" ],
"time": 1365483292 }
]
}
It means the user(whose id is 1335845740 ) updated his status (most likely to post a new status).
what I want to say is, the 'time' 1365483292 you got is not exactly correct.
I use fql to crawl the status data and get the status created date is around 1365483292, but not exactly the same, say 1365483291. However, for some other times, they are same.
So, if you got the update info as above, you should pay attention that "time" infomation.
if you still want to use this "time" info to crawl some latest data, you'd better use:
WHERE time BETWEEN $time-1 AND $time // or something similar
Thursday, April 4, 2013
post on user's timeline by app
<?php
session_start();
require_once('AppInfo.php');
require_once('utils.php');
require_once('sdk/src/facebook.php');
$facebook = new Facebook(array(
'appId' => 'APP_ID',
'secret' => 'APP_SECRET',
));
$app_token="XXXXXX"; //long life access_token should be better
$attachment = array
(
"access_token"=>"$app_token",
"message" => "Interesting App",
"name" => "MyApp",
"caption" => "About MyApp",
"link" => "http://facebook.com/", //your own url
"description" => "Awesome App",
"scope" => "publish_stream"
);
$result = $facebook->api("/USER_ID/feed","POST",$attachment);
print_r($result );
?>
send request from app to user using javascript
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:fb="https://www.facebook.com/2008/fbml">
<head>
<title>MyNTU Request</title>
</head>
<body>
<div id="fb-root"></div>
<script src="http://connect.facebook.net/en_US/all.js"></script>
<script>
FB.init({
appId : 'xxxxxxxxxxx', //your app id
frictionlessRequests: true
});
FB.ui({method: 'apprequests',
message: 'My Great Request',
to: 'xxxxxx' //user id you want to send to
}, requestCallback);
function requestCallback(response) {
// Handle callback heres
}
</script>
</body>
</html>
send request from app to user using php
<?php
$app_id = "YOUR_APP_ID";
$app_secret = "YOUR_APP_SECRET";
$token_url = "https://graph.facebook.com/oauth/access_token?" .
"client_id=" . $app_id .
"&client_secret=" . $app_secret .
"&grant_type=client_credentials";
$app_access= file_get_contents($token_url);
$app_access_token = json_decode($app_access, true);
$user_id ="USER_ID";
$apprequest_url ="https://graph.facebook.com/" .
$user_id .
"/apprequests?message='INSERT_UT8_STRING_MSG'" .
"&data='INSERT_STRING_DATA'&" .
$app_access_token . "&method=post";
$result = file_get_contents($apprequest_url);
$obj = json_decode($result, true);
print_r($app_access_token);
print_r($obj);
?>
Tuesday, April 2, 2013
get user realtime update for your app
First, you should go to your app setting page in facebook developer home page.
when you reach the app setting panel or dashboard,
choose Settings-Realtime Updates
then in the dashboard, you can
1) in fields: input some the field you like, such as hometown_location
2) in callback: input your app url
if your app url is http://myapp.com
and your file to preocess the realtime update is update.php
then you should input: http://myapp.com/update.php
3) in verify token, you should input one string you like, e.g.: myfacebookapp123
save the changes.
Then you should prepare the update.php file on your server, you could copy the following code to your update.php file
when you reach the app setting panel or dashboard,
choose Settings-Realtime Updates
then in the dashboard, you can
1) in fields: input some the field you like, such as hometown_location
2) in callback: input your app url
if your app url is http://myapp.com
and your file to preocess the realtime update is update.php
then you should input: http://myapp.com/update.php
3) in verify token, you should input one string you like, e.g.: myfacebookapp123
save the changes.
Then you should prepare the update.php file on your server, you could copy the following code to your update.php file
<?php
$verify_token = myfacebookapp123';
if ($_SERVER['REQUEST_METHOD'] == 'GET' && isset($_GET['hub_mode'])
&& $_GET['hub_mode'] == 'subscribe' && isset($_GET['hub_verify_token'])
&& $_GET['hub_verify_token'] == $verify_token)
{
echo $_GET['hub_challenge'];
} else if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
$post_body = file_get_contents('php://input');
$obj = json_decode($post_body, true);
$myFile = "testFile.txt";
$fh = fopen($myFile, 'a+') or die("can't open file");
$stringData = "Something updates, pls go to get it!\n";
fwrite($fh, $stringData);
fclose($fh);
}
?>
Now you can go to facebook and modify one user's(who has authened your app before) hometown. after 1-2 minutes, your server could generate one testFile.txt with "Something updates, pls go to get it!"
This post dose not analyze the content in $obj . it is something like this:
/*
{
"object": "user",
"entry": [
{
"uid": 1335845740,
"changed_fields": [
"name",
"picture"
],
"time": 232323
}, {
"uid": 1234,
"changed_fields": [
"friends"
],
"time": 232325
}
]
}
*/
you can try to get them respectively use php.
One thing we should pay attention to is that: through realtime update, we can only get the which filed has been updated, such as hometown. but we do not know what is the user's latest howntown unless we write codes to crawl that data.
get the access token and extend its lifetime for your app
1. the basic idea is : use your 'state' get 'code', then use 'code' get 'access_token', finally use current access_token to get the 60-day long access-token. thus, even the user is not logged into facebook, you can still access his data:
2. use the short-term token to get the 60-day access token
If your current token is not expired yet, you are likely to get the same token but with longer life(60 days) you can also see how long it will last every time you refresh the page.
<?php
$app_id = "YOUR_APP_ID";
$app_secret = "APP_SECRET";
$my_url = "YOUR_URL";
session_start();
$code = $_REQUEST["code"];
if(empty($code)) {
$_SESSION['state'] = md5(uniqid(rand(), TRUE)); // CSRF protection
$dialog_url = "https://www.facebook.com/dialog/oauth?client_id="
. $app_id . "&redirect_uri=" . urlencode($my_url) . "&state="
. $_SESSION['state'] . "&scope=user_birthday,user_hometown, read_stream, friends_likes, email, user_status, publish_stream, status_update,offline_access";
header("Location: " . $dialog_url);
}
if($_SESSION['state'] && ($_SESSION['state'] === $_REQUEST['state'])) {
$token_url = "https://graph.facebook.com/oauth/access_token?"
. "client_id=" . $app_id . "&redirect_uri=" . urlencode($my_url)
. "&client_secret=" . $app_secret . "&code=" . $code;
$response = file_get_contents($token_url);
$params = null;
parse_str($response, $params);
$_SESSION['access_token'] = $params['access_token'];
$graph_url = "https://graph.facebook.com/me/feed?access_token="
. $params['access_token'];
$user = json_decode(file_get_contents($graph_url),TRUE);//get all the data related with 'feed'
echo "</br>";
echo "<h3>Your infomation are:</h3>";
echo "</br>";
print_r($user);
echo "</br>";
echo "</br>";
}
else {
echo("The state does not match. You may be a victim of CSRF.");
}
?>
2. use the short-term token to get the 60-day access token
<?php
$my_token_url="https://graph.facebook.com/oauth/access_token?
grant_type=fb_exchange_token&
client_id=YOUR_APP_ID&
client_secret=YOUR_APP_SECRET&
fb_exchange_token=YOUR_CURRENT_ACCESS_TOKEN";
header("Location: " . $my_token_url);
?>
If your current token is not expired yet, you are likely to get the same token but with longer life(60 days) you can also see how long it will last every time you refresh the page.
all the 'scope' options in facebook app development
our app always ask for user permission, but you should type the correct offcial permission in the scope parameter.
e.g
function authUser() {
FB.login(checkLoginStatus, {scope:'user_hometown, read_stream, friends_likes, email, user_status, publish_stream, status_update,offline_access'});
}
if you want get the user's hometowm permission, you should type user_hometown instead of just hometown, otherwise you can never get this permission.
all below is all the latest scope options supported by facebook
/* Supported scopes: ads_management create_event create_note email export_stream friends_about_me friends_activities friends_birthday friends_checkins friends_education_history friends_events friends_games_activity friends_groups friends_hometown friends_interests friends_likes friends_location friends_notes friends_online_presence friends_photo_video_tags friends_photos friends_questions friends_relationship_details friends_relationships friends_religion_politics friends_status friends_subscriptions friends_videos friends_website friends_work_history manage_friendlists manage_notifications manage_pages offline_access photo_upload publish_actions publish_checkins publish_stream read_friendlists read_insights read_mailbox read_page_mailboxes read_requests read_stream rsvp_event share_item sms status_update user_about_me user_activities user_birthday user_checkins user_education_history user_events user_games_activity user_groups user_hometown user_interests user_likes user_location user_notes user_online_presence user_photo_video_tags user_photos user_questions user_relationship_details user_relationships user_religion_politics user_status user_subscriptions user_videos user_website user_work_history video_upload xmpp_login */
user login using FB for facebook app development
All you need to do is to replace the Uppercase Variables with your own real parameter.
If the user dose not log into facebook, then it will redirect the user to the facebook login page;
if the user user has loged into facebook but not authened your required permission, then it will prompt the user permission pannel.
if the uer has loged into facebook and authened all your permission, it would direcly redirect the user into your app;
YOUR_APP_NAME
Wednesday, March 6, 2013
develop web version facebook app using heroku
there is official document to do this, it is applicable both to linux and windows.
the link is :
https://devcenter.heroku.com/articles/facebook
It is not very diffcult althoug sometimes you do not know what dose it mean. Heroku helps us save the time to setup a server thus we could focus on the desining the app code.
But for most of the beginner, I think you would run into the following problems if it is your first time to use the above link.
For Heroku
1. we use heroku toolbelt, git version of control system to interact with the server with our local machine. So, pls remeber to add your %path%.
2. if you still run into:
fatal: Not a git repository (or any of the parent directories): .git
pls remember to do the following:
git init
git add . #the '.' after add should be typed
git commit -m 'Initial commit'
3.if you need to change the configure of git, you can find it in the .git folder, which is a hidden child folder of your app folder.
4. if your local os is linux, it will redirect you to: https://toolbelt.heroku.com/debian to install the heroku toolbelt.
you should paste this to your terminal and run:
wget -qO- https://toolbelt.heroku.com/install-ubuntu.sh | sh
in the mid of it, you will have to agree with one license term where it shows you <ok>. if you directly enter return, it will fail, then pls press "tab" first ,then press return.
5. when you run into:
The authenticity of host 'heroku.com (50.19.85.132)' can't be established.
RSA key fingerprint is *some.random.fingerprint.
some people suggest:
in .git/config, changed the project name in [remote "heroku"] to the name given by heroku
I do not know what dose it exactly mean, and I just jump it and without modifying anything, so far, the app still works fine.
6. if you have modified the codes, and you want to run the two commands:
$ git commit -am "changed greeting"
$ git push heroku
before you do that, make sure you have cd into your app folder. otherwise, it may not detect any modification of your app
For Localhost
If you want to develop the app locally, this post seems fine for me:
http://www.7tech.co.in/php/how-to-create-a-facebook-application-using-php/
you should build you local machine as a server first, the normal
WAMP is ok.
then when you choose to create new app, you should remeber the app id and app secret, and do not select using heroku as server.
while in the site url: you should input: http://localhost/myapp/
and for the canvas page url you could use the same addrss
for canvas secure url you could use: https://localhost/myapp/ instead.
the link is :
https://devcenter.heroku.com/articles/facebook
It is not very diffcult althoug sometimes you do not know what dose it mean. Heroku helps us save the time to setup a server thus we could focus on the desining the app code.
But for most of the beginner, I think you would run into the following problems if it is your first time to use the above link.
For Heroku
1. we use heroku toolbelt, git version of control system to interact with the server with our local machine. So, pls remeber to add your %path%.
2. if you still run into:
fatal: Not a git repository (or any of the parent directories): .git
pls remember to do the following:
git init
git add . #the '.' after add should be typed
git commit -m 'Initial commit'
3.if you need to change the configure of git, you can find it in the .git folder, which is a hidden child folder of your app folder.
4. if your local os is linux, it will redirect you to: https://toolbelt.heroku.com/debian to install the heroku toolbelt.
you should paste this to your terminal and run:
wget -qO- https://toolbelt.heroku.com/install-ubuntu.sh | sh
in the mid of it, you will have to agree with one license term where it shows you <ok>. if you directly enter return, it will fail, then pls press "tab" first ,then press return.
5. when you run into:
The authenticity of host 'heroku.com (50.19.85.132)' can't be established.
RSA key fingerprint is *some.random.fingerprint.
some people suggest:
in .git/config, changed the project name in [remote "heroku"] to the name given by heroku
I do not know what dose it exactly mean, and I just jump it and without modifying anything, so far, the app still works fine.
6. if you have modified the codes, and you want to run the two commands:
$ git commit -am "changed greeting"
$ git push heroku
before you do that, make sure you have cd into your app folder. otherwise, it may not detect any modification of your app
For Localhost
If you want to develop the app locally, this post seems fine for me:
http://www.7tech.co.in/php/how-to-create-a-facebook-application-using-php/
you should build you local machine as a server first, the normal
WAMP is ok.
then when you choose to create new app, you should remeber the app id and app secret, and do not select using heroku as server.
while in the site url: you should input: http://localhost/myapp/
and for the canvas page url you could use the same addrss
for canvas secure url you could use: https://localhost/myapp/ instead.
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