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POFacebook access token only valid for user that created the facebook application
 

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  1. POFacebook access token only valid for user that created the facebook application
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    <p>I have some JavaScript that logs in a Facebook user and saves the access token to a database:</p> <pre><code>window.fbAsyncInit = function () { FB.init({ appId: '&lt;%=FaceBookApplicationId() %&gt;', status: false, // check login status cookie: true, oauth: true }); }; function facebookLogin() { FB.login(function(response) { if (response.authResponse) { __doPostBack('__Page', 'FacebookDeliveryButton: ' + JSON.stringify(response.authResponse)); } else { console.log('User cancelled login or did not fully authorize.'); } }, { scope: 'offline_access,read_stream,publish_stream,user_photos' }); } </code></pre> <p>A button click fires facebookLogin() which logs in a facebook user, getting a facebook session that includes an access token, which I JSON serialize and post to the server. The server then saves this access token to the database table FacebookDeliveryQueue.</p> <p>I have a Windows service running that periodically queries the FacebookDeliveryQueue table and attempts to post on a user's wall using the access token we saved earlier:</p> <pre><code>IQueryable&lt;FacebookDeliveryQueue&gt; toSend = objectContext.FacebookDeliveryQueues.Where(p =&gt; !p.IsDelivered); foreach (FacebookDeliveryQueue facebookDeliveryQueueItem in toSend) { string facebookAccessToken = facebookDeliveryQueueItem.Cart.FacebookAccessToken; string facebookRecipientId = facebookDeliveryQueueItem.Cart.FacebookRecipientId; var client = new FacebookClient(facebookAccessToken); dynamic parameters = new ExpandoObject(); parameters.message = facebookDeliveryQueueItem.Cart.CustomMessageBody; client.Post(facebookRecipientId + "/feed", parameters); } </code></pre> <p>My problem is, this ONLY works with access tokens from the user that created the facebook application. E.g. </p> <p>Success: I, the creator of this application, log in and pick one of my friends to send a message to, this info is saved to the database, the service runs, my message is posted to my friend's wall. </p> <p>Failure: I log in on my dummy test account (approving the app permissions on this account), pick one of my dummy test account's friend, this info is saved to the database, the service runs and throws an invalid access token error.</p> <p>Any ideas why? </p> <p>Update: Switched to Oauth login -- no change. Still getting "(OAuthException) Invalid access token signature." when attempting to post to friend's wall.</p>
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    1. USDaniel Coffman
    1. USDaniel Coffman
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      1. USDaniel Coffman
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    1. COI'm not shure, but possibly, you're using code available only for developement-enabled account. Try your code with a different "developer" account and see if it works
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      1. USArtoAle
    2. COIs that a thing? What's the difference between a "developer" account and a normal facebook account? This app is associated with my normal facebook account.
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      1. POFacebook access token only valid for user that created the facebook application
      1. USDaniel Coffman
    3. COI've now verified my test account and added it as an administrator for this app and the delivery still fails with the same "Invalid access token signature" exception. Access tokens from my other "real" account (with which I created this app) can still post to any friend's wall.
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      1. USDaniel Coffman
 

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