app.post('/login', (req, res, next) => {

        if (req.body.name == '' || req.body.password == '') {
              res.status(401).send('Please fill all fields')
        } else {
            let name = req.body.name;
            // let password = req.body.password;
            // usually this would be a database call:
            let user = users[_.findIndex(users, {
                name: name
            })];
            if (user === undefined) {
                  res.status(401).send('User not defined')

            } else {
                if (user.password === req.body.password) {
                    let payload = {
                        id: user.id
                    };
                    let token = jwt.sign(payload, config.jwtSecret);
                        res.json({message: "ok", token: token});

                } else {
                      res.status(401).send('Password did not match')

                }
            }
        }
    });