using System.Threading.Tasks;
namespace Sample105
{
 public class Startup
 {
  public async Task<object> Invoke(object input)
  {
   return this.Add7((int)input);
  }


  int Add7(int v) 
  {
   return Helper.Add7(v);
  }
 }


 static class Helper
 {
  public static int Add7(int v)
  {
   return v + 7;
  }
 }
}

E:\dev>"C:\Program Files (x86)\MSBuild\14.0\Bin\amd64\csc.exe" /target:library /debug Sample105.cs

E:\dev> npm install edge-js 

var edge = require('edge-js');

var add5 = edge.func('Sample105.dll');

add5(22, function (error, result) {
 if(error) throw error;
 console.log(result);
});

E:dev> node edgeCAll.js
29