title: Node js app session. How to make users did not intervene in the session to each other?
body: <p>I learn node js. I got very simple app, where need to type query to videohostings. E.g. you type "cat" and page shows you video with some cat. Nevermind.</p>
  
  <p>I use express, and I really can't understand how works sessions and cookies. I want make different sessions for each user. Sorry for my silly English, now I'll write it literally :D</p>
  
  <p>If one user entered a query and he was given a video, the other user should not see the result of his query, i.e. it must have the same result</p>
  
  <p>Because if I have already type the query and the video display, the same displayed on the other browser, it turns out that some kind of "common search".</p>
  
  <p>Hope you understood, thanks for replies!</p>
  
  <p>UPD, 
  There are taking query from input and put it to variable, that need for pug template to link to video that need to insert to page</p>
  
  <pre><code>app.post("/", function (req, res) {
  
      if(!req.body) {
          return res.sendStatus(400);
      }
  
      vk.request('video.search', {'q' :req.body.query}, function(_o) {
          query = _o.response.items[0].player;
          res.redirect('back');
      });
  });
  </code></pre>