Trouble with SOAP request from Flex - web-services

Question

SUM: I ended up having to form the XML manually. I also had to create an Operation and use its send(); method rather than just doing something like WebService.MyServiceFunction(); - not sure why that was the case.
I send off the request as follows:
var xm:XML =
<SetPropertiesForCurrentUser xmlns="http://asp.net/ApplicationServices/v200">
<values xmlns:d4p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<d4p1:KeyValueOfstringanyType>
<d4p1:Key>{obj.Key}</d4p1:Key>
<d4p1:Value xmlns:d6p1="http://www.w3.org/2001/XMLSchema" i:type="d6p1:string">{obj.Value}</d4p1:Value>
</d4p1:KeyValueOfstringanyType>
</values>
</SetPropertiesForCurrentUser>;
var profileService:WebService = new WebService();
profileService.useProxy = false;
profileService.loadWSDL(url);
var o:Operation = profileService.SetPropertiesForCurrentUser;
o.send(xm);
Here’s my scenario:
I have ASP.NET web services to handle authentication, user roles, and user profiles (default ASP.NET AuthenticationService, RoleService, and ProfileService, to be exact).
So from my Flex web app, I am able to successfully call the ASP.NET service. For example, something like this works fine:
var profileService:WebService = new WebService();
profileService.useProxy = false;
profileService.GetAllPropertiesForCurrentUser.addEventListener("result",getAllPropertiesForCurrentUser_EventHandler);
profileService.addEventListener("fault",getAllPropertiesForCurrentUserFault_EventHandler);
profileService.loadWSDL(url);
profileService.GetAllPropertiesForCurrentUser();
I run into trouble when I need to pass a Dictionary object to another function on the service (SetPropertiesForCurrentUser). The .NET service asks for this type of value:
System.Collections.Generic.IDictionary(Of String, Object)
Here are the two pertinent entries from the web.config entry from my ASP.NET service:
<properties>
<clear/>
<add name="coordinateFormat" />
</properties>
...
<profileService enabled="true"
readAccessProperties="coordinateFormat"
writeAccessProperties="coordinateFormat"/>
So after putting together a SOAP request from a Silverlight app (which works as expected) I’ve narrowed it down to a difference in the XML request sent to the SOAP handler:
From Flex:
<tns:Value>DMS</tns:Value>
From Silverlight:
<d4p1:Value xmlns:d6p1="http://www.w3.org/2001/XMLSchema" i:type="d6p1:string">DMS</d4p1:Value>
If I take the request generated by Flex, catch it with Fiddler, modify that one line to include the “type” namespace – it works.
Anyone have an idea how I can get that namespace onto my variable that is passed to the SOAP handler from Actionscript? Here is my code for sending off that SetPropertiesForCurrentUser function:
var obj:Object = {};
obj["Key"] = "coordinateFormat";
obj["Value"] = DMS;
var profileService:WebService = new WebService();
profileService.useProxy = false;
profileService.SetPropertiesForCurrentUser.addEventListener("result",setPropertiesForCurrentUser_EventHandler);
profileService.addEventListener("fault",setPropertiesForCurrentUserFault_EventHandler);
profileService.loadWSDL(url);
profileService.SetPropertiesForCurrentUser(new ArrayCollection([obj]),false);
Thanks,
Josh

Answer 1

The default SOAPEncoder that is used is some what limited in its capabilities (like not including the type attribute you mentioned above). Luckily, there is a way to control that by writing your own encoder.
see this link at adobe (read part about using custom web service serialization) Link on Adobe's Site