Getting error: Session Expired while making a post request

[Theval]

I am just a beginner using RestFB API. I have imported the project in
my eclipse IDE and while I try to run the sample
(GraphPublisherExample) with my access code I get the following error:

* Feed publishing *
9 Mar, 2012 12:54:33 AM com.restfb.DefaultWebRequestor executePost
FINE: Executing a POST to https://graph.facebook.com/me/feed with
parameters (sent in request body): message=RestFB
test&access_token=AAACEdEose0cBADC3y8tfxXolQxmRPuoGH1ZBwIzPw9YTZB08jmfBrZClYoW0AEqCNIwJYsHj20Aqwli75tVwgAWybzTMYydjAWx0KNvlAZDZD&format=json
Exception in thread "main"
com.restfb.exception.FacebookOAuthException: Received Facebook error
response of type OAuthException: Error validating access token:
Session has expired at unix time 1331233200. The current unix time is
1331234674.
at com.restfb.DefaultFacebookClient
$DefaultGraphFacebookExceptionMapper.exceptionForTypeAndMessage(DefaultFacebookClient.java:
639)
at
com.restfb.DefaultFacebookClient.throwFacebookResponseStatusExceptionIfNecessary(DefaultFacebookClient.java:
561)
at
com.restfb.DefaultFacebookClient.makeRequestAndProcessResponse(DefaultFacebookClient.java:
505)
at
com.restfb.DefaultFacebookClient.makeRequest(DefaultFacebookClient.java:
468)
at
com.restfb.DefaultFacebookClient.publish(DefaultFacebookClient.java:
289)
at
com.restfb.DefaultFacebookClient.publish(DefaultFacebookClient.java:
297)
at
com.restfb.example.GraphPublisherExample.publishMessage(GraphPublisherExample.java:
84)
at
com.restfb.example.GraphPublisherExample.runEverything(GraphPublisherExample.java:
72)
at
com.restfb.example.GraphPublisherExample.main(GraphPublisherExample.java:
64)

Can anyone please guide me?

Cheers,
Theval

[Theval]

I worked around with getting new access code. Just to move on.

But now I am stuck at this point:

* Feed publishing *
9 Mar, 2012 1:09:45 AM com.restfb.DefaultWebRequestor executePost
FINE: Executing a POST to https://graph.facebook.com/thevalparekh/feed

with parameters (sent in request body): message=RestFB

test&access_token=AAACEdEose0cBAOtXrAjlwelfPWmbhJmtpc3zdnH3J0NT5JIOGqyngO0UlvwSbD9JC18Sgf16yqx4o0PYFSSNs3uQRM82bTljGTZCVsgZDZD&format=json

Exception in thread "main"
com.restfb.exception.FacebookOAuthException: Received Facebook error

response of type OAuthException: (#200) The user hasn't authorized the
application to perform this action

at com.restfb.DefaultFacebookClient
$DefaultGraphFacebookExceptionMapper.exceptionForTypeAndMessage(DefaultFacebookClient.java:
639)
at
com.restfb.DefaultFacebookClient.throwFacebookResponseStatusExceptionIfNecessary(DefaultFacebookClient.java:
561)
at
com.restfb.DefaultFacebookClient.makeRequestAndProcessResponse(DefaultFacebookClient.java:
505)
at
com.restfb.DefaultFacebookClient.makeRequest(DefaultFacebookClient.java:
468)
at
com.restfb.DefaultFacebookClient.publish(DefaultFacebookClient.java:
289)
at
com.restfb.DefaultFacebookClient.publish(DefaultFacebookClient.java:
297)
at
com.restfb.example.GraphPublisherExample.publishMessage(GraphPublisherExample.java:

85)
at
com.restfb.example.GraphPublisherExample.runEverything(GraphPublisherExample.java:
73)
at
com.restfb.example.GraphPublisherExample.main(GraphPublisherExample.java:
64)

Please guide me if you have any idea about the above error message.

[kfir ozer]

Hi!

lets start with your first error. 

when you fetch an access token it expires at some point. you need to fetch the expiration date and handle it properly.

more information can be found here:

http://developers.facebook.com/blog/post/500/

regarding your new error. it just means that this specific user did not allow the application to fetch his feeds.

more information regarding Facebook app permissions can be found here:

https://developers.facebook.com/docs/reference/api/permissions/

--
Free your software, and your ass will follow 

   -- Laurent Szyster