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PODifficulty posting Actions to Timeline
 

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    <p>I've tried building the basis of our next app following <a href="https://developers.facebook.com/docs/beta/opengraph/tutorial/" rel="nofollow">Facebook's Open Graph Tutorial</a> but for some reason I'm getting errors thrown at me regardless of how I try POSTing an action.</p> <p>I'll go as in-depth as I can here as I hope it'll be very useful for all developers getting to grips with the new Timeline.</p> <p>I've defined a <strong>battle</strong> action and a <strong>hero</strong> object using the default settings when setting up each. <strong>transcendgame</strong> is my namespace.</p> <p><code>$id</code> is the userid of the Facebook user (I've tried using /me/, the direct id has always been less problematic in the past for me).</p> <p><code>$herourl</code> is an urlencoded string pointing to a separate webpage with the following content:</p> <pre class="lang-html prettyprint-override"><code> &lt;head prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb# transcendgame: http://ogp.me/ns/fb/transcendgame#"&gt; &lt;meta property="fb:app_id" content="[my id]"&gt; &lt;meta property="og:type" content="transcendgame:hero"&gt; &lt;meta property="og:url" content="http://apps.facebook.com/transcendgame/"&gt; &lt;meta property="og:title" content="Hercules"&gt; &lt;meta property="og:description" content="As this game is still in development, you can ignore this feed post!"&gt; &lt;meta property="og:image" content="[an image url]"&gt; </code></pre> <p>The application canvas page contains the following code. It should POST a new action event to the user's timeline, but is consistently giving me "Error occured". I have also tried it with the sample hero object (samples.ogp.me...) with the same problem.</p> <pre><code>&lt;script&gt; function doTest() { FB.api('/&lt;?=$id?&gt;/transcendgame:battle' + '?hero=&lt;?=$herourl?&gt;','post', function(response) { if (!response || response.error) { alert('Error occured'); } else { alert('Post was successful! Action ID: ' + response.id); } }); } &lt;/script&gt; &lt;a href="#" onclick="doTest(); return false"&gt;Test fb post&lt;/a&gt; </code></pre> <p>I'm calling the JS SDK and running fb.init correctly. I honestly don't know where the problem even lies, let alone how to fix it.</p> <p><strong>EDIT:</strong> I've correctly added the user's access token to the API call:</p> <pre><code>FB.api('/me/transcendgame:battle' + '?hero=&lt;?=$herourl?&gt;&amp;access=&lt;?=$token?&gt;','post', </code></pre> <p>However, I'm getting the following error:</p> <pre><code>Type: OAuthException Message: (#3502) Object at URL [url] has og:type of 'game'. The property 'hero' requires an object of og:type 'transcendgame:hero'. </code></pre> <p>This is odd, as the webpage definitely does have og:type set correctly, as listed earlier in this question. Is this some Facebook hiccup I need to work around?</p> <p><strong>SECOND EDIT</strong>: Fixed the final problem.</p> <p>The <strong>og:url</strong> I had assumed to point back to the URL of the app's canvas, but it needs to reference <em>itself</em> instead. For instance, if your object is on mydomain.com/object1.php then the code must be:</p> <pre><code>&lt;meta property="og:url" content="http://www.mydomain.com/object1.php"&gt; </code></pre> <p>Hope this helps others.</p>
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