awssum.js

AWSSum = {
  load: function(module) {
    var awssum = NodeModules.require('awssum');
    return awssum.load(module);
  },

  loadSyncInterface: function(module, className) {

    // Get a reference to the original interface
    var interface = AWSSum.load(module)[className];

    _.each(interface.prototype, function(fn, name) {

      if (_.isFunction(fn) && (name === _.classify(name))) {

        var syncName = name + 'Sync';
        interface.prototype[syncName] = function() {

          var fut = new Future();

          var args = _.toArray(arguments);
          args.push(function(error, data) {
            if (error)
              data = { error: error };
            fut.return(data);
          });

          // Run the method with our Future-ized callback
          fn.apply(this, args);

          return fut.wait();
        };
      }
    });

    return interface;
  }
};

moof.js

if (Meteor.is_client) {

  Meteor.startup(function() {
    Meteor.call('describeInstances', function(error, instances) {
      var instances = instances.Body.DescribeInstancesResponse.reservationSet.item;
      if (!_.isArray(instances)) instances = [instances];
      Session.set('instances', instances);
    });
  });
  
  Template.instances.helpers({
    instances: function() {
      return Session.get('instances');
    }
  });
}

if (Meteor.is_server) {

  var amazon = AWSSum.load('amazon/amazon');
  var Ec2 = AWSSum.loadSyncInterface('amazon/ec2', 'Ec2');

  var ec2 = new Ec2({
    'accessKeyId' : "XXX",
    'secretAccessKey' : 'YYY',
    'region' : amazon.US_EAST_1
  });
  
  Meteor.methods({
    describeInstances: function() {
      var data = ec2.DescribeInstancesSync();

      if (data.error)
        throw new Meteor.Error(500, data.error.Body.Response.Errors.Error.Message, data.error);

      return data;
    }
  });
}