Set RestAngular default request parameters after login

Question

I'm hitting an API which requires all authenticated actions to include an auth token in the request, however, I do not have the auth token until I login.

I've only seen examples of setting default request parameters in Restangular in app.config. Is it possible to set this until after the user has logged in and User.auth_token is set?

So basically instead of:

app.config(function(RestangularProvider) {
    RestangularProvider.setDefaultRequestParams({
        auth_token: 'thisistheauthenticationtoken'
    });
});

I need:

app.config(function(RestangularProvider) {
    RestangularProvider.setDefaultRequestParams({
        auth_token: User.auth_token
    });
});

Answer 1

Why would you set token as part of the response versus in the header? Like so.

Restangular.setDefaultHeaders({ authentication: 'bearer ' + token.authentication });

Answer 2

I know this is an old thread but this SO question kept appearing when I was Googling (yes, I just used Google as a verb... deal with it :P) for a resolution, so I thought I should provide my solution. Hopefully it will help the OP or anyone else that may come across this page.

angular.module("app").factory("UserService", [
    "$rootScope",
    "$state",
    "$q",
    "Restangular",
    function ($rootScope, $state, $q, Restangular) {
        var UserSvc = {};
        var Identity;

        /*
            This creates a scoped copy of Restangular
            Normally this is where you would use setDefaultRequestParams,
            but it would only affect this scope and not ALL API requests in your app
         */
        var UsersAPI = Restangular.withConfig(function (RestangularConfigurer) {
            RestangularConfigurer.setBaseUrl("api/1.0/users");
        });

        UserSvc.login = function (credentials) {
            var $defer = $q.defer();

            UsersAPI.all("start-session").post(credentials).then(function(respData){
                if (respData.apikey) {
                    Identity = respData.plain();

                    /*
                        User is authenticated and API key is obtained from server response

                        Note how I do NOT use the setDefaultRequestParams function:
                        If we do the withConfig/setDefaultRequestParams, it only affects local scope, not global
                        This method modifies the ROOT Restangular object and
                        will then propegate through all future use of Restangular in your app
                     */
                    Restangular.configuration.defaultRequestParams.common.apikey = Identity.apikey;


                    if ($rootScope.toState && $rootScope.toState.name != "login") {
                        $state.go($rootScope.toState.name, $rootScope.toStateParams || {});
                    } else {
                        $state.go("app.dashboard");
                    }

                    $defer.resolve(Identity);
                }
                else {
                    Identity = undefined;

                    $defer.reject(Identity);
                }
            },function (respData) {
                $defer.reject(respData);
            });

            return $defer.promise;

        };

        return UserSvc;
    }
]);