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);

    };



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