{ideas}

In this short post I’ll write the JavaScript code required to ask users to grant stream reading, stream publishing and offline access permissions for your application.

var read = "read_stream";
var offline = "offline_access";
var publish = "publish_stream";
FB_RequireFeatures(["Api"], function() {
    FB.Facebook.init("API_KEY", "xd_receiver.htm");
    var api = FB.Facebook.apiClient;
    FB.Connect.requireSession(function() {
        var session = api.get_session();
        api.users_hasAppPermission(read, function(hasRead) {
            api.users_hasAppPermission(publish, function(hasPublish) {
                api.users_hasAppPermission(offline, function(hasOffline) {
                    var permissions = [];
                    if (!hasRead) permissions.push(read);
                    if (!hasPublish) permissions.push(publish);
                    if (!hasOffline) permissions.push(offline);
                    if (permissions.length > 0) {
                        FB.Connect.showPermissionDialog(permissions.join(","), function(authorized) {
                            alert("Authorized: " + authorized);
                        });
                    }
                    else {
                        alert("Has Permissions");
                    }
                });
            });
        });
    });
});