Simple express api doesn`t work

I want to build my first API with MEAN stack. I have 3 files that look like this:

Index.js

var express = require('express');
var router = express.Router();
var path = require('path');

/* GET home page. */
router.get('/', function (req, res, next) {
    res.sendfile(path.join(__dirname, '../public/dist/index.html'));
});

module.exports = router;

Users.js

var express = require('express');
var router = express.Router();

/* GET users listing. */
router.get('/login', function(req, res, next) {
  res.status(200).json({ message: 'hooray! welcome to our api!' });
});

router.post('/login', function(req, res, next) {
  res.send('welcome to our api!');
});

module.exports = router;

And app.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');

var index = require('./routes/index');
var users = require('./routes/users');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
//app.use(express.static('public'));

app.use('/', index);
app.use('/users', users);

app.use(express.static(
    path.join(__dirname, '/public/dist')
));

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;

Index.js works fine and send index.html with angular inside, but Users.js doesn`t. It always send me page 404 when I try to make get or post request to /login. So why does it happens, they looks the same.