I am beginner in Node.js . I also made an application . I am using nodemon for auto start server. In production I want to restart my server automatically when it become down . How can I do that

const app = {};

app.createServer = () => {
    const server = http.createServer(app.handleReqRes);
    server.listen(environment.port, () => {
        console.log(`listening to port ${environment.port}`);
    });
}; 

app.createServer();