ionic-httpPost-example.js

   $scope.login = function() {
           var req = {
               method: 'POST',
               url: 'http://example.com',

               headers: {
                   'Content-Type': 'application/json; charset=UTF-8'
               },
               crossDomain: true,

               data: {
                   email: $scope.data.email,
                   password: $scope.data.password
               }
           };
           /* Executing the request */
           $http(req).then(function(res) {

                   //getting the response
                   Console.log(res);

               }
           }