auto-push


A HTTP/2 middleware for Node.js that automatically parse HTML/CSS and push their associated resouces to the client.

It wraps a middleware and create new one, where a middleware is a function like

``javascript
function(req, res, next) {
// some operation here
}
`
.

Ability

This module recursively find resources and push for each of them.

Usage

This module works for several use cases.

Example

$3

`javascript
var fs = require('fs');
var autoPush = require('auto-push');
var http2 = require('http2');
var ecstatic = require('ecstatic');

var options = {
key: fs.readFileSync(__dirname + '/ssl/key.pem'),
cert: fs.readFileSync(__dirname + '/ssl/cert.pem')
};

http2.createServer(options, autoPush(ecstatic(__dirname + '/public'))).listen(8443);
`

$3

`javascript
var autoPush = require('auto-push');
var http = require('http');
var ecstatic = require('ecstatic');
var request = require('request');
var fs = require('fs');
var http2 = require('http2');

// server
http.createServer(ecstatic(__dirname + '/public')).listen(8080);

// proxy
var options = {
key: fs.readFileSync(__dirname + '/ssl/key.pem'),
cert: fs.readFileSync(__dirname + '/ssl/cert.pem')
};
http2.createServer(options, autoPush(function(req, res) {
request({
method: req.method,
url: 'http://localhost:8080' + req.url,
headers: req.headers
}).pipe(res);
})).listen(8443);
`

$3

With this option, the server sends additional response header and let the proxy server push resources.

Limitation: only the shallowest sub-resources are the target.

`javascript
var autoPush = require('auto-push');
var http = require('http');

// server
http.createServer(autoPush(function(req, res) {
request({
method: req.method,
url: 'http://localhost:8080' + req.url,
headers: req.headers
}).pipe(res);
}, {
mode: 'nghttpx'
})).listen(8080);
`

API

The second argument is optional.

`javascript
var options = {
// Modes
mode: 'nghttpx'// use nghttpx as a reverse proxy
mode: 'mod_spdy'// use htdpd (with mod_spdy) as a reverse proxy

};
``