Calling Node.js from ASP.NET Core

Here are the steps to invoke Node.js from ASP.NET Core Website

1. Add below line in the ConfiguraServices() in Startup.cs

   public
   void
   ConfigureServices(IServiceCollection services)

   {

       services.AddMvc();

      services.AddNodeServices();

   }

2. Add constructor in the Controller

       public
   class
   HomeController : Controller

       {

           INodeServices
   nodeServices;

           public
   HomeController(INodeServices nodeServices)

       {

               this.nodeServices =
   nodeServices;

           }

3. Call NodeServices as shown below

   public
   async  Task<IActionResult>
   About()

   {

       var
   msg = await
   nodeServices.InvokeAsync<string>("./hello.js",
   1);

    

       ViewData["Message"] = msg;

       return View();

   }

4. Add following code to js file

   module.exports = function (callback)

   {

       var
   message = 'Hello
   world';

       callback(null, message);

   };