Example of AJAX

recommender/recommender.py

@@ -72,6 +72,11 @@ class RecommenderXBlock(XBlock):
         data = pkg_resources.resource_string(__name__, path)
         return data.decode("utf8")
 
+    @XBlock.json_handler
+    def handle_upvote(slef, data, suffix=''):
+        print "Upvote clicked!"
+        return {"Success": True}
+
     # TO-DO: change this view to display your data your own way.
     def student_view(self, context=None):
         """

recommender/static/js/src/recommender.js

+function RecommenderXBlock(runtime, element) {
+    var handlerUrl = runtime.handlerUrl(element, 'handle_upvote');
+
+    function voted(result) { console.log("Voted"); }
+
+    $('.recommender_vote_arrow_up', element).click(function(){
+	$.ajax({
+            type: "POST",
+            url: handlerUrl,
+            data: JSON.stringify({}),
+            success: voted
+	});
+    });
+}
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