gistfile1.txt

function $web ($http) {
  var post = function (method, data) {
        $http({
          method: 'POST'
        , url: '/_layouts/15/CSN.SharePoint/CSNWebMethods.aspx/' + method
        , headers: {'X-RequestDigest': $('[name="__REQUESTDIGEST"]').val()}
        , data: data
        })
          .then(function () {
            console.log('Post success!');
          });
      };
        
  return {
    post: function (method, data) {
      post(method, data);
    }
  };
}

angular
  .module('CSNapp')
  .factory('$web', $web);