Express middleware to transform responses
npm install express-transformWIP
``
npm install --save express-transform
Adds a req.transform method that can be used to pipe the response
to transform streams before it is passed to the underlying socket.
See ./test/index.js.
Example for compressing response:
`javascript
import express from 'express';
import onHeaders from 'on-headers';
import transform from 'express-transform';
const app = express();
app.use(transform());
app.use((req, res, next) => {
const gzip = zlib.createGzip();
res.transform(gzip);
// Some express methods automatically
// add Content-Length header which will
// be incorrect since we are compressing.
onHeaders(res, function gzipOnHeaders() {
this.setHeader('Content-Encoding', 'gzip');
this.removeHeader('Content-Length');
});
next();
});
app.use((req, res) => {
res.send('Hello World!');
});
``