actions.js

(function (actions, $) {
    function callAction(operation, inputs, onSuccess, onError) {
        actionInputs = null;
        if (typeof inputs === 'string' || inputs instanceof String)
            actionInputs = inputs;
        else if (typeof inputs === 'object' && inputs !== null)
            actionInputs = JSON.stringify(inputs);

        url = `/_api/mwo_powerpagesactions?$filter=createdon ge ${new Date().toISOString()} and mwo_operation eq '${operation}'`
        if (actionInputs)
            url += ` and mwo_inputs eq '${actionInputs}'`

        safeAjax({
            type: "GET",
            url: url,
            success: (data) => successFunction(data, onSuccess, onError),
            error: (jqXHR) => errorFunction(jqXHR, onError)
        });
    }
    actions.callAction = callAction;

    function successFunction(data, onSuccess, onError) {
        console.log(data);
        var record = data.value[0];
        var outputs = JSON.parse(record.mwo_outputs);
        if (record.statuscode == 407770001)
            onSuccess(outputs);
        else 
            onError(outputs);
    }

    function errorFunction(jqXHR, onError) {
        console.log(jqXHR);
        if (jqXHR.status = 404)
            onError({ message: "Actions endpoint not found, please check whether you have configured the Site Settings 'Webapi/mwo_powerpagesaction/enabled: True' and 'Webapi/mwo_powerpagesaction/fields: *'"})
        else 
            onError(jqXHR.responseJSON);
    }

    function safeAjax(ajaxOptions) {
        var deferredAjax = $.Deferred();

        shell.getTokenDeferred().done(function (token) {
            if (!ajaxOptions.headers) {
                $.extend(ajaxOptions, {
                    headers: {
                        "__RequestVerificationToken": token
                    }
                });
            } else {
                ajaxOptions.headers["__RequestVerificationToken"] = token;
            }
            $.ajax(ajaxOptions)
                .done(function (data, textStatus, jqXHR) {
                    validateLoginSession(data, textStatus, jqXHR, deferredAjax.resolve);
                }).fail(deferredAjax.reject); //AJAX
        }).fail(function () {
            deferredAjax.rejectWith(this, arguments); // on token failure pass the token AJAX and args
        });

        return deferredAjax.promise();
    }
})(window.actions = window.actions || {}, jQuery)