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[doc] add comments to examples/url-middleware.js

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1 parent 45f3df8 commit f6484de4112463c74105db82d27f131d64478f1d @dominictarr dominictarr committed Jul 26, 2011
Showing with 9 additions and 7 deletions.
  1. +9 −7 examples/url-middleware.js
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@@ -1,5 +1,5 @@
/*
- gzip-middleware.js: Basic example of middleware in node-http-proxy
+ urls-middleware.js: Basic example of middleware in node-http-proxy
Copyright (c) 2010 Charlie Robbins, Mikeal Rogers, Fedor Indutny, Marak Squires, & Dominic Tarr.
@@ -30,7 +30,9 @@ var util = require('util'),
httpProxy = require('./../lib/node-http-proxy');
//
-// Basic Http Proxy Server
+// url proxying middleware example.
+//
+// this is not optimised or tested but shows the basic approch to writing a middleware.
//
function matcher (url, dest) {
var r = new RegExp (url)
@@ -54,19 +56,19 @@ exports.urls = function (urls) {
return function (req, res, next) {
//
// in nhp middlewares, `proxy` is the prototype of `next`
+ // (this means nhp middlewares support both connect API (req, res, next)
+ // and nhp API (req, res, proxy)
//
var proxy = next;
for (var k in matchers) {
- var m
+ var m;
if (m = matchers[k](req.url)) {
- req.url = m.url
- return proxy.proxyRequest(req,res, m.dest)
+ req.url = m.url;
+ return proxy.proxyRequest(req,res, m.dest);
}
}
-
}
-
}
httpProxy.createServer(

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