gistfile1.txt

function middleware(username, password, done) {
    superagent
      .post('https://nixenterprise.nixsolutions.com:4433/services/TokenService.svc/GetToken')
      .send({login: username, password: password})
      .type('json')
      .end(function(err, res) {
        if (err || res.body.status === 'Fail') {
          return done(err || res.body.status)
        }

        User.findOne({username: username}, function(err, user) {
          if (err) {
            return done(err);
          }
          if (!user) {
            user = _.extend({username: username}, res.body);
            return User.create(user, function(err, user) {
              if (err && err.code === 11000) {
                err = null;
              }
              done(err, user)
            })
          }
          return done(err, user);
        });
      });