How to implement ntlm authorization in node js?

Question

Node.js

I use express, node-sspi.
The bottom line is that it skips those users who are in a certain group, and transfers the rest to another page where there are forms for entering a login and password

Answer 1

Express basics
expressjs.com/ru/guide/using-middleware.html#middl...

app.get('/myform', (req, res, next) => {
  if (req.user.inMyGroup()) {
     return next();
  }
  res.render('loginform');
}, (res, req) => {
  res.render('mypage');
});

somehow like that.