Express - res.send() works once

Question

I\'m new to Node and Express, I was trying to make something with Express just to get started, then I faced this problem.

First res.send() works well, but t

Answer 1

This is because res.send() finishes sending the response.

When res.send('Hello'); is encountered it sends the response immediately. So next res.send is not executed and you cannot see visitors. Commenting the first res.send allows you to view the second one.

Answer 2

res.send() is meant to be called just once.

Try this instead:

app.get('/', function(req,res) {
  var response = 'Hello';
  fs.readFile('counter.txt','utf-8', function(e,d) {
      if (e) {
        console.log(e);
        res.send(500, 'Something went wrong');
      }
      else {
        console.log(parseInt(d) + 1);
        fs.writeFile('counter.txt',parseInt(d) + 1);
        response += '<p id="c">' + ( parseInt(d) + 1 ) + '</p>';
        res.send(response);
      }
  })
});

(or just res.send("Hello<p id=..."), but you get the point :)