Set Like and Unlike programatically

Hello, we developep a Sharepoint hosted add'in the will Set Like and Unlike  a particular List Item. We initially used the API Microsoft.Office.Server.ReputationModel.Reputation.setLike and it seems not working. Here is the program we used.We need to run the program in Sharepoint Online

   $.getScript(hostweburl + "/_layouts/15/" + "MicrosoftAjax.js", function () {
        $.getScript(hostweburl + "/_layouts/15/" + "SP.core.js", function () {
            $.getScript(hostweburl + "/_layouts/15/" + "init.debug.js", function () {
                $.getScript(hostweburl + "/_layouts/15/" + "Reputation.js", function () {
                    blogURL = hostweburl + "/searchblog";
                    var like = false;
                    var likeButtonText = $("a.LikeButton").text();
                    likeButtonText = "Like";
                    if (likeButtonText != "") {
                        if (likeButtonText == "Like")
                            like = true;
                        var clientContext = new SP.ClientContext(appweburl);
                        var factory = new SP.ProxyWebRequestExecutorFactory(appweburl);
                        clientContext.set_webRequestExecutorFactory(factory);
                        var appContextSite = new SP.AppContextSite(clientContext, blogURL);

                        var context = new SP.ClientContext(blogURL);
                        EnsureScriptFunc('reputation.js', 'Microsoft.Office.Server.ReputationModel.Reputation', function () {
                            Microsoft.Office.Server.ReputationModel.
                            Reputation.setLike(appContextSite,
                                listid,
                                itemid, like);

                            clientContext.executeQueryAsync(
                                function () {
                                    //alert(String(like));
                                    //GetLikeCount();
                                }, function (sender, args) {
                                    alert('Request failed. ' + args.get_message()+ '\n' + args.get_stackTrace());
                                });
                        });
                    }
                });
            });
        });
    });