A sample of using dynamic .NET ExpandoObjects with edge.js (https://github.com/tjanczuk/edge)

gistfile1.js

var edge = require('edge');
 
var testDynamic = edge.func(function() {/*
  //#r "System.Core.dll"
  //#r "Microsoft.CSharp.dll"
 
	using System.Dynamic;
	using System.Threading.Tasks;
 
	public class Startup
	{
		public async Task<object> Invoke(object input)
		{ 
			dynamic data = new ExpandoObject();
			data.FirstName = "kevin";
			data.InputFromNode = input;
			return data;
		}
	}
 */});
 
testDynamic('hello from node', function(err, result) {
    console.log(result);
});
 
/* Result: 
[ { Key: 'FirstName', Value: 'kevin' },                            
  { Key: 'InputFromNode', Value: 'hello from node' } ]
*/