How to list all comments in my domain

It is possible, in two different ways, as long as you have a fixed set of sub-pages you want to fetch comments from.

If you have a large amount of sub-pages, or a variable amount, then you don’t have a good scalable solution – and many have been looking for one:

• Facebook fb:comments Graph API
• How to display recent comments from Facebook Comments social plugin?
• Facebook FQL query to return all comments against an application
• Retrieve all comments with FQL by application ID
• Facebook FQL query to return all comments against an application
• fql query to get comment count no longer working
• http://facebook.stackoverflow.com/questions/10023179/retrieve-all-the-comments-posted-using-fql

For a Fixed set of sub-pages in your website, you can either use a batch request, or an FQL query.

Batch Request

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First, you need your access token. Just enter the following as a url in a browser (credit to this website ):


https://graph.facebook.com/oauth/access_token?type=client_cred&client_id=APP_ID&client_secret=APP_SECRET


And this is the javascript jquery code to make a batch request to fetch comments from several urls at once:

$.ajax({
  url: 'https://graph.facebook.com/',
  type : "POST",
  data: {
    access_token : 'YOUR_APP_ACCESS_TOKEN',
    batch : '[ \
    {"method":"GET","relative_url":"URL1"}, \
    {"method":"GET","relative_url":"URL2"} \
    ]'
  },
  success: function(data) {
    jdata = JSON.parse(data);
    $.each(jdata, function(index,value){
        jdata[index].body = JSON.parse(value.body);
        console.log(value.body);
    });
    // Do whatever you want with jdata
  }
});

FQL

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inspired from this post

FB.api({
    method: 'fql.query',
    query: 'select text from comment where object_id in (select comments_fbid from link_stat where url="URL1" or url="URL2")'
  }, function(response) {
    // Do something with results
  });

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Conclusion

Because of this limitation of Facebook, I plan to switch to disqus.com, which apparently supports this feature (As you can see from this blog, for example. (search for ‘recent comments’)