Documentation

Each RPC type is based on a AbstractRPCObject which mimics the native http://livedocs.macromedia.com/flex/2/langref/. Since the implementation is the same for the different RPC types (AMF0,XML-RPC and JSON-RPC), AbstractObject will be used to generalize them in the examples. Simply replace ak33m:AbstractObject with the appropriate tags:

RPC Type	Package	AS Class	MXML Tag
AMF0 (Flash Remoting)	com.ak33m.rpc.amf0.*	AMF0Object	<ak33m:AMF0Object>
XML-RPC	com.ak33m.rpc.xmlrpc.*	XMLRPCObject	<ak33m:XMLRPCObject>
JSON-RPC	com.ak33m.rpc.jsonrpc.*	JSONRPCObject	<ak33m:JSONRPCObject>

General Example:

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" xmlns:ak33m="http://ak33m.com/mxml" creationComplete="callFunction();">
    <mx:Script>
       <![CDATA[
         import mx.controls.Alert;
         function callFunction ()
         {
           //sample method call using token pattern
           someapi.doSomeThing(param1,param2);
          //sample method call if method has a dot (.) (as is the case with blog xmlrpc API
          someapi.call("method.with.dot",param1,param2);
         }
      ]]>
   </mx:Script>
    <ak33m:AbstractObject id="someapi" endpoint="http://ak33m.com" destination="someendpoint" fault="Alert.show(event.fault.faultString,event.fault.faultCode)">
    </ak33m:AbstractObject>
</mx:Application>

Below is an example using the xmlrpc api of a blog. It uses the token pattern and the ItemResponder.

NB Any class that implements IResponder can be used. ItemResponder is the only responder natively available in Flex 2© and hence utilized in this example

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" xmlns:ak33m="http://ak33m.com/mxml" creationComplete="">
        <mx:Script>
                <![CDATA[
                        import mx.rpc.events.ResultEvent;
                        import mx.rpc.events.FaultEvent;
                        import mx.rpc.AsyncToken;
                        import mx.controls.Alert;
                        import mx.collections.ItemResponder;
                        var urlregexp:String = "^[A-Za-z]+://[A-Za-z0-9-_]+\\.[A-Za-z0-9-_%&\?\/.=]+$";
                        var endpointregexp:String = "/[A-Za-z0-9-_%&\?\/.=]";
                        function login ()
                        {
                                //This is the rpc call. Because the xmlrpc service used in this example has functions with dots (.) in them the call function is used
                                //if there was no dot the call could be blogapi.getUserInfo ()
                                var token:AsyncToken = blogapi.call("blogger.getUserInfo","",user_txt.text,password_txt.text);
                                var tresponder:ItemResponder = new ItemResponder(this.showUserInfo,this.onFault);
                                
                                token.addResponder(tresponder);
                        }
                        
                        function showUserInfo (event:ResultEvent,token = null)
                        {
                                Alert.show("User: "+event.result.nickname,"User info result");
                        }
                        
                        function onFault (event:FaultEvent, token=null)
                        {
                                Alert.show(event.fault.faultString,event.fault.faultCode);
                        }
                ]]>
        </mx:Script>
        <!-- Validation -->
          <mx:RegExpValidator id="regExpV" 
        source="{rooturl_txt}" property="text" 
        flags="g" expression="{urlregexp}" noMatchError="Please enter a valid URL"
      />
     <mx:RegExpValidator id="endpointregExpV" 
        source="{this.endpoint_txt}" property="text" 
        flags="g" expression="{endpointregexp}" noMatchError="Please enter a valid endpoint. It MUST start with a /"
      />
     <!-- User Interface -->
        <mx:Panel height="300" width="380">
                <mx:Form height="200" width="350" x="0" y="0">
                        <mx:FormHeading label="Blog Login" textAlign="left"/>
                        <mx:FormItem label="Root URL">
                                <mx:TextInput id="rooturl_txt"/>
                        </mx:FormItem>
                        <mx:FormItem label="Xmlrpc endpoint">
                                <mx:TextInput id="endpoint_txt"/>
                        </mx:FormItem>
                        <mx:FormItem label="Username">
                                <mx:TextInput id="user_txt"/>
                        </mx:FormItem>
                        <mx:FormItem label="Password">
                                <mx:TextInput id="password_txt"/>
                        </mx:FormItem>
                        <mx:FormItem>
                                <mx:Button label="Send" id="send_btn" click="login();"/>
                        </mx:FormItem>
                </mx:Form>
        </mx:Panel>
        <!-- RPC Object -->
        <ak33m:XMLRPCObject id="blogapi" endpoint="{rooturl_txt.text}" destination="{endpoint_txt.text}" >
                
        </ak33m:XMLRPCObject>
</mx:Application>