gzipping should be done after minification about express-minify

[breezewish]

Yes gzip should be done after minification. However express-minify and compression rewrite function to "hook" the output of the response thus the order is reversed.

Let's say, a hook is as simple as:

var _send = res.send();
res.send = function (data) {
  // our own logic here
}

Then let's imagine multiple hooks (middleware A appears before middleware B):

var _sendA = res.send();
res.send = function (data) {
  // A
  manipulateA();
}

var _sendB = res.send();
res.send = function (data) {
  // B
  manipulateB();
}

Now when calling res.send, the order would be:

manipulateB
manipulateA

As you can see, hooks from later middlewares will be called first. That's how express-minify works.

In fact, minification cannot even work after gzip. The output from gzip is compressed binary data.

[nirsharma]

I got it. thanks :)