On 30/08/2007 12:55 Daniel de la Cuesta wrote:

Hi,

I am developing an middleware XMLRPC Server. It connects with a mail server and provides and XMLRPC interface to read and send mail.

Is there any way to return the result of the xmlrpc method in deferred's callback?

Is there any way to return a deferred object inside the xmlrpc method?

Is it a good solution using asynchronous chunks (deferreds) inside a synchronous protocol as it is XML-RPC (HTTP)?

I use this pattern on the server side

def xmlrpc_getStuff(self, stuff): def fail(_): print "Oh dear!" return False

def returnStuff(dbResult): otherstuff = doStuffWith(dbResult) return otherStuff

return self.db.getStuff(stuff).addCallbacks(returnStuff, fail)

And this one on the client side

def checkKey(stuff): def fail(_): return False def good(stuff): return stuff return Proxy(xmlServer, allowNone=True).callRemote('getStuff', stuff).addCallbacks(good, fail)

There are better ways depending on what you're really doing..