portainer/app/docker/services/swarmService.js

import { SwarmViewModel } from '../models/swarm';

angular.module('portainer.docker')
.factory('SwarmService', ['$q', 'Swarm', function SwarmServiceFactory($q, Swarm) {
  'use strict';
  var service = {};

  service.swarm = function() {
    var deferred = $q.defer();

    Swarm.get().$promise
    .then(function success(data) {
      var swarm = new SwarmViewModel(data);
      deferred.resolve(swarm);
    })
    .catch(function error(err) {
      deferred.reject({ msg: 'Unable to retrieve Swarm details', err: err });
    });

    return deferred.promise;
  };

  return service;
}]);