AngularJS - accessing http headers - angularjs

Question

I am trying to access the http headers in my angular controller but I am getting undefined. Also, I am able to see the header response in my angular service which is not reflecting in my controller. Can someone please tell me what I am missing? Please see the code below:
Service:
cmApp.service('supplierService', function ($http, $q) {
this.getSuppliers = function (orderByColumn, skipRows, takeRows) {
var deferred = $q.defer();
$http({
method: 'GET',
url: 'api/supplier',
params: { orderBy: orderByColumn, skip: skipRows, take: takeRows },
timeout: 30000,
cache: false
}).
success(function (data, status, headers, config) {
// any required additional processing here
deferred.resolve(data, status, headers, config);
}).
error(function (data, status) {
deferred.reject(data, status, headers, config);
});
return deferred.promise;
}
Controller:
supplierService.getSuppliers($scope.orderby, $scope.skip, $scope.take)
.then(function (data, status, headers, config) {
**//getting undefined here.**
$scope.totalRecords = parseInt(headers('X-TotalRowCount'));
$scope.suppliers = data;
}, function (error) {
// error handling here
});

Answer 1

I have found the solution by myself. All I have to do is create an array and add all those values to the same & return it to the controller. Please see the updated code below:
Service:
cmApp.service('supplierService', function ($http, $q) {
this.getSuppliers = function (orderByColumn, skipRows, takeRows) {
var deferred = $q.defer();
$http({
method: 'GET',
url: 'api/supplier',
params: { orderBy: orderByColumn, skip: skipRows, take: takeRows },
timeout: 30000,
cache: false
}).
success(function (data, status, headers, config) {
// any required additional processing here
var results = [];
results.data = data;
results.headers = headers();
results.status = status;
results.config = config;
deferred.resolve(results);
}).
error(function (data, status) {
deferred.reject(data, status, headers, config);
});
return deferred.promise;
}
Controller:
supplierService.getSuppliers($scope.orderby, $scope.skip, $scope.take)
.then(function (response) {
$scope.suppliers = response.data;
$scope.totalRecords = parseInt(response.headers["x-totalrowcount"]);
}, function (error) {
// error handling here
});

Answer 2

This question is old, but $http() returns a promise itself. you can just return that from your service, no need to create a new promise. You can do this even after using .success() and .error(), or for that matter even after using a .then(), they keep chaining.

Answer 3

I had to access Token and TokenExpiry time from response headers of my Rest Service,then store it in my $rootScope.
Here is the code I used:
$scope.Authenticate=function(){
var EncDecUserPass=decodeURIComponent(encodeURIComponent($scope.LoggedUserName+':'+$scope.LoggedUserPassword)) ;
$http(
{method: 'GET',
url: 'http://localhost:53256/api/Products/Authenticate',
cache: false,
headers:{'Authorization':'Basic '+window.btoa(EncDecUserPass)}
}
).success(function(data, status, headers, config) {
//Here it goes
$rootScope.token=headers().token;
$rootScope.tokenExpirySec=headers().tokenexpiry;
}).error(function(data, status, headers, config) {
alert('Invalid User');
});
}