API call varianten

apiVariante1.js

mcDataService().then(function(apiObject) {
  apiObject.template.get(2).then(function(data) {
    // do stuff w/ data
  },
  function(err, res) {
    console.log('error getting template.');
  });
},
function (err) {
  console.log('error recieving apiObject');
});

apiVariante2.js

mcDataService('template').get(2).then(function(data) {
  // do stuff w/ data
},
function(err, res) {
  console.log('error getting templates.')
});

service.js

(function () {
    var module = angular.module('MedCloudData');
    var serviceName = 'mcDataService';

    module.provider(serviceName, function mcDataServiceProvider() {
        var apiJsonLocation = '';

        this.setApiJsonLocation = function (location) {
            apiJsonLocation = location;
        }

        this.$get = [
            '$http',
            '$q',

            function ($http, $q) {
                return function () {
                    var def = $q.defer();

                    var apiObject = {};

                    $.getJSON(apiJsonLocation, function (apiData) {
                        for (var key in apiData) {
                            apiObject[key] = {}
                            if (!apiData[key].GET) apiObject[key].get = null;
                            else {
                                apiObject[key].get = function (params) {
                                    var getDef = $q.defer();

                                    var formattedUrl = (apiData[key].url[apiData[key].url.length - 1] == '/') ? apiData[key].url : apiData[key].url + '/';

                                    for (var i in apiData[key].GET.params) {
                                        if (!params[apiData[key].GET.params[i]]) {
                                            return getDef.reject(new Error('Parameter "' + apiData[key].GET.params[i] + '" missing.'));
                                        }

                                        formattedUrl += params[apiData[key].GET.params[i]] + '/';
                                    }

                                    formattedUrl = (formattedUrl[formattedUrl.length - 1] == '/')
                                        ? formattedUrl.substr(0, formattedUrl.length - 1) : formattedUrl;

                                    $http.get(formattedUrl).then(function (res) {
                                        getDef.resolve(res.data);
                                    },
                                    function (res) {
                                        getDef.reject(new Error('Error on "' + key + '" GET request.'), res);
                                    });

                                    return getDef.promise;
                                }
                            }

                            if (!apiData[key].POST) apiObject[key].post = null;
                            if (!apiData[key].PUT) apiObject[key].put = null;
                            if (!apiData[key].DELETE) apiObject[key].delete = null;
                        }

                        def.resolve(apiObject);
                    });

                    return def.promise;
                }
            }
        ];
    });
})();