ElectronCGI is a library that enables making requests from a NodeJs application that are served by a .Net application.

It uses the standard in/out streams for communication.

To use it install the electron-cgi npm package on you node application and the ElectronCgi.DotNet nuget package on your .Net console app.

Here's an example:

In NodeJs/Electron:

    const { ConnectionBuilder } = require('electron-cgi');

    const connection = new ConnectionBuilder()
            .connectTo('dotnet', 'run', '--project', 'DotNetConsoleProjectWithElectronCgiDotNetNugetPackage')
            .build();

    connection.onDisconnect = () => {
        console.log('Lost connection to the .Net process');
    };

    connection.send('greeting', 'John', theGreeting => {
        console.log(theGreeting); // will print "Hello John!"
    });

    connection.close();

And in the .Net Console Application:

    using ElectronCgi.DotNet;

    //...
    static void Main(string[] args)
    {
        var connection = new ConnectionBuilder()
                            .WithLogging()
                            .Build();

        // expects a request named "greeting" with a string argument and returns a string
        connection.On<string, string>("greeting", name =>
        {
            return $"Hello {name}!";
        });

        // wait for incoming requests
        connection.Listen();        
    }

[Blog post with extra information about ElectronCGI](https://www.blinkingcaret.com/2019/02/27/electron-cgi/)