dateInterceptor.js

(function (app) {
    app.factory('dateInterceptor', function () {
            var regexIsoUtc = /(\d{4})-(\d{2})-(\d{2})T(\d{2})\:(\d{2})\:(\d{2})(.\d*)?\+(\d{2})\:(\d{2})/;

            function matchDate(dateString) {
                return dateString.match(regexIsoUtc);
            };

            function convertDateStringsToDates(object) {
                // ensure that we're processing an object
                if (typeof object !== "object") {
                    return object;
                }

                for (var key in object) {
                    if (!object.hasOwnProperty(key)) {
                        continue;
                    }
                    var value = object[key];

                    // check for string properties with a date format
                    if (typeof value === "string" && matchDate(value)) {
                        var date = new Date(value); // create the date from the date string
                        object[key] = date; // we're mutating the response directly
                    } else if (typeof value === "object") {
                        convertDateStringsToDates(value); // recurse into object
                    }
                }
                return null;
            }

            var interceptor = {
                'response': function (response) {
                    if (response.data) {
                        convertDateStringsToDates(response.data);
                    }
                    return response;
                }
            };
            return interceptor;
        })
    app.config(HttpConfig);
    HttpConfig.$inject = ['$httpProvider'];
    function HttpConfig($httpProvider) {
        $httpProvider.interceptors.push('dateInterceptor'); // intercept responses and convert date strings into real dates
    }
})(angular.module('dateInterceptor',[]));