changed api to better reflect nodes api. updated demos, tests, docs

Author: Marak

README.md

@@ -30,12 +30,12 @@ Let's suppose you were running multiple http application servers, but you only w
   npm install http-proxy
 </pre>
 
-### How to use node-http-proxy
+### How to setup a basic proxy server
 <pre>
   var http = require('http'),
       httpProxy = require('http-proxy');
 
-  httpProxy.createServer('localhost', '9000').listen(8000);
+  httpProxy.createServer('9000', 'localhost').listen(8000);
 
   http.createServer(function (req, res){
     res.writeHead(200, {'Content-Type': 'text/plain'});
@@ -46,24 +46,36 @@ Let's suppose you were running multiple http application servers, but you only w
 
 see the [demo](http://github.com/nodejitsu/node-http-proxy/blob/master/demo.js) for further examples.
 
-### How to use node-http-proxy with custom server logic
+### How to setup a proxy server with custom server logic
 <pre>
   var http = require('http'),
       httpProxy = require('http-proxy');
 
-
   // create a proxy server with custom application logic
   httpProxy.createServer(function (req, res, proxy) {
     // Put your custom server logic here
-    proxy.proxyRequest('localhost', '9000', req, res);
+    proxy.proxyRequest('9000', 'localhost', req, res);
   }).listen(8000);
 
+  http.createServer(function (req, res){
+    res.writeHead(200, {'Content-Type': 'text/plain'});
+    res.write('request successfully proxied: ' + req.url +'\n' + JSON.stringify(req.headers, true, 2));
+    res.end();
+  }).listen(9000);
+  
+</pre>
+
+### How to proxy requests with a regular http server
+<pre>
+  var http = require('http'),
+      httpProxy = require('http-proxy');
+
   // create a regular http server and proxy its handler
   http.createServer(function (req, res){
     var proxy = new httpProxy.HttpProxy;
     proxy.watch(req, res);
     // Put your custom server logic here
-    proxy.proxyRequest('localhost', 9000, req, res);
+    proxy.proxyRequest(9000, 'localhost', req, res);
   }).listen(8001);
 
   http.createServer(function (req, res){

demo.js

@@ -41,13 +41,13 @@ sys.puts(welcome.rainbow.bold);
 
 
 /****** basic http proxy server ******/ 
-httpProxy.createServer('localhost', 9000).listen(8000);
+httpProxy.createServer(9000, 'localhost').listen(8000);
 sys.puts('http proxy server'.blue + ' started '.green.bold + 'on port '.blue + '8000'.yellow);
 
 /****** http proxy server with latency******/ 
 httpProxy.createServer(function (req, res, proxy){
   setTimeout(function(){
-    proxy.proxyRequest('localhost', 9000, req, res);
+    proxy.proxyRequest(9000, 'localhost', req, res);
   }, 200)
 }).listen(8001);
 sys.puts('http proxy server '.blue + 'started '.green.bold + 'on port '.blue + '8001 '.yellow + 'with latency'.magenta.underline );
@@ -58,7 +58,7 @@ http.createServer(function (req, res){
   proxy.watch(req, res);
 
   setTimeout(function(){
-    proxy.proxyRequest('localhost', 9000, req, res);
+    proxy.proxyRequest(9000, 'localhost', req, res);
   }, 200);
 }).listen(8002);
 sys.puts('http server '.blue + 'started '.green.bold + 'on port '.blue + '8002 '.yellow + 'with proxyRequest handler'.cyan.underline + ' and latency'.magenta);

lib/node-http-proxy.js

@@ -61,8 +61,8 @@ exports.HttpProxy.prototype = {
       callback = arguments[0];
     }
     else {
-      server = arguments[0];
-      port = arguments[1];
+      port = arguments[0];
+      server = arguments[1];
     }
 
     var proxyServer = http.createServer(function (req, res){

test/node-http-proxy-test.js

@@ -37,8 +37,8 @@ var testServers = {};
 //
 // Creates the reverse proxy server
 //
-var startProxyServer = function (server, port, proxy) {
-  var proxyServer = proxy.createServer(server, port); 
+var startProxyServer = function (port, server, proxy) {
+  var proxyServer = proxy.createServer(port, server); 
   proxyServer.listen(8080);
   return proxyServer;
 };
@@ -50,7 +50,7 @@ var startLatentProxyServer = function (server, port, proxy, latency) {
   // Initialize the nodeProxy and start proxying the request
   var proxyServer = proxy.createServer(function (req, res, proxy) {
     setTimeout(function () {
-      proxy.proxyRequest(server, port, req, res);
+      proxy.proxyRequest(port, server, req, res);
     }, latency);
   });
 
@@ -77,7 +77,7 @@ var startTargetServer = function (port) {
 //
 var startTest = function (proxy, port) {
   testServers.noLatency = [];
-  testServers.noLatency.push(startProxyServer('localhost', port, proxy));
+  testServers.noLatency.push(startProxyServer(port, 'localhost', proxy));
   testServers.noLatency.push(startTargetServer(port));
 };
 
@@ -86,7 +86,7 @@ var startTest = function (proxy, port) {
 //
 var startTestWithLatency = function (proxy, port) {
   testServers.latency = [];
-  testServers.latency.push(startLatentProxyServer('localhost', port, proxy, 2000));
+  testServers.latency.push(startLatentProxyServer(port, 'localhost', proxy, 2000));
   testServers.latency.push(startTargetServer(port));
 };