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*// index.js

process.chdir(__dirname);

var fs = require ("fs");
const os = require('os');

var mpath = require.resolve('os-service');

function getUserHome() {
      
    // From process.env
    return process.env[(process.platform == 'win32')
            ? 'USERPROFILE' : 'HOME'];
}
process. env['HOME'] = getUserHome() ;
var service = require('nexe-natives')(mpath);

function usage () {
    console.log ("usage: node periodic-logger --add <name> [username] [password] [dep dep ...]");
    console.log ("       node periodic-logger --remove <name>");
    console.log ("       node periodic-logger --run");
    process.exit (-1);
}
//console.log(process.argv);



if (process.argv[2] == "--add" && process.argv.length >= 4) {
    var options = {
        programArgs: ["--run", "me"]
    };

    if (process.argv.length > 4)
        options.username = process.argv[4];

    if (process.argv.length > 5)
        options.password = process.argv[5];
        
    if (process.argv.length > 6)
        options.dependencies = process.argv.splice(6);
        
        service.add (process.argv[3], options, function(error) {
            console.log("SERVICE NAME:" + process.argv[3] + " INSTALLED");
            if (error)
                console.log(error.toString());
        });
} else if (process.argv[2] == "--remove" && process.argv.length >= 4) {
    console.log("remove");
    service.remove (process.argv[3], function(error) {
        if (error)
            console.log(error.toString());
    });
} else if ((process.argv[2] == "--run") || (process.argv[3] == "--run")) {
    console.log("run");
    service.run (logStream, function () {
        console.log("runn service called")
        service.stop (0);
    });

    var logStream = fs.createWriteStream(process.argv[1] + ".log");

    // Here is our long running code, simply print a date/time string to
    // our log file
    setInterval (function () {
        logStream.write(new Date ().toString () + "\n");
    }, 1000);
} else {
    console.log("else");
    usage ();
}*

the below command runs the application and also install the window-service named "periodic-logger-service" with startup type "Automatic" and i am able to see the service created in window-services manager and if we need to start this window-service we have to start it manually or we need to reboot the machine.

>> node index.js --add periodic-logger-service

But I want to start this window service automatically from command prompt by passing the run arguments, tried below command as mentioned in the os-service readme docs

>>node index.js --run

this starts the application and the logging is written in the index.log file and when I exit the terminal by cntrl C the application stops, and the window-service ("periodic-logger-service") installed is not running.

Kindly help to resolve this issue. Also wanted to know how to check whether the window-service is already installed or not for below requirements.

  1. if already installed, then i need to run the service
  2. if not installed, then i need to install and run the service.

reference taken - https://www.npmjs.com/package/os-service

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