Mention Content-Type requirement & add a second detailed example

README.md

@@ -8,7 +8,7 @@
         app = express();
 
     app.use(xrpc.xmlRpc);
-
+    //Note that the Content-Type: of the request must be text/xml for this to work 
     app.post('/RPC', xrpc.route({
         echo: function (msg, callback) {
             callback(null, msg);

example/app-example2.js

@@ -0,0 +1,30 @@
+var express = require('express'),
+    xrpc = require('xrpc'),
+    app = express();
+
+
+app.use(xrpc.xmlRpc);
+
+app.post('/RPC', xrpc.route({
+    handleNewRequest: function ( params, callback ) {
+    	var responseObj = {
+    		firstMember: params.firstMember,
+    		secondMember: params.secondMember,
+    		response: '',
+    		action: 'end'
+    	};
+
+    	//The rest of the magic that manipulates the responseObj object e.g.
+    	responseObj.response = 'The response string';
+
+ 		//Send the final response
+        callback( null, responseObj );
+    }
+}));
+
+app.listen(3000);
+
+//Then send a request to http://localhost:3000/RPC if this is on localhost 
+//Sample request in ./example-2-request.xml and the expected response is shown in ./example-2-response.xml
+//A very key thing to note is that Content-Type: header must be text/xml. One way to test is to use:
+//curl -d @example-2-request.xml --header "Content-Type: text/xml" http://localhost:3000/RPC

example/example-2-request.xml

@@ -0,0 +1 @@
+<?xml version="1.0" encoding="UTF-8"?><methodCall><methodName>handleNewRequest</methodName><params><param><value><struct><member><name>firstMember</name><value><string>982225245516</string></value></member><member><name>secondMember</name><value><string>theValueIsThisRightHere</string></value></member></struct></value></param></params></methodCall>

example/example-2-response.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0"?>
+<methodResponse>
+<params>
+<param>
+<value><struct>
+<member>
+<name>firstMember</name>
+<value><string>982225245516</string></value>
+</member>
+<member>
+<name>secondMember</name>
+<value><string>theValueIsThisRightHere</string></value>
+</member>
+<member>
+<name>response</name>
+<value><string>The response string</string></value>
+</member>
+<member>
+<name>action</name>
+<value><string>end</string></value>
+</member>
+</struct>
+</value>
+</param>
+</params>
+</methodResponse>