Incorrect XML produced by SUDS

Question

Hi,

I am trying to talk to a SOAP web service using SUDS and Python. After lots of messing around learning Python (yes I am new to this) and working out how to use SUDS I have come across a problem.

The signature of the web method I am calling, according to suds, is

(FWTCaseCreate){
ClassificationEventCode = None
Priority = None
Title = None
Description = None
Queue = None
DueDate = None
AssociatedObject = 
  (FWTObjectBriefDetails){
     ObjectID = 
        (FWTObjectID){
           ObjectType = None
           ObjectReference[] = <empty>
        }
     ObjectDescription = None
     Details = None
     Category = None
  }
Form = 
  (FWTCaseForm){
     FormField[] = <empty>
     FormName = None
     FormKey = None
  }
Internal = None
InteractionID = None
XCoord = None
YCoord = None
}

So I use SUDS to create the classes that I want and send it to the method. However I get an error. So I turned logging on and I can see that the XML that is being sent is not correct which is causing a deserialize error. The SOAP package looks like the following

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:ns0="http://www.CRM.com/wsdl/FLTypes"    xmlns:ns1="http://schemas.xmlsoap.org/soap/envelope/" xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"&gt;
<SOAP-ENV:Header>
   <wsse:Security>
      <wsse:BinarySecurityToken>eaadf1ddff99a8</wsse:BinarySecurityToken>
   </wsse:Security>
</SOAP-ENV:Header>
<ns1:Body>
   <ns0:FWTCaseCreate>
      <ClassificationEventCode>
         <ClassificationEventCode>2000023</ClassificationEventCode>
         <Priority>1</Priority>
         <Title>testing</Title>
         <Description>testing</Description>
         <Queue/>
         <Internal>True</Internal>
         <XCoord>356570</XCoord>
         <YCoord>168708</YCoord>
      </ClassificationEventCode>
   </ns0:FWTCaseCreate>
</ns1:Body>

As you can see there is a 'ClassificationEventCode' element around all the other elements, this should not be there. If I cut and paste this xml into SOAPUI and first remove this element and then post it directly to the web service it works successfully.

Here is the code I am using to make the call

client = Client(url)

#Add a header for the security
ssnns = ('wsse', 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd')

ssn = Element('BinarySecurityToken', ns=ssnns).setText(binaryKey)

ssn1 = Element('Security',ns=ssnns)

ssn1.append(ssn)

client.set_options(soapheaders=ssn1) 

newCase = client.factory.create('ns1:FWTCaseCreate')

classEventCode = client.factory.create('ns1:FWTEventCode')
classEventCode.value = 2000023

newCase.ClassificationEventCode = classEventCode
newCase.Priority = 1
#optional
newCase.AssociatedObject = None
#optional
newCase.Form = None
#optional
newCase.Internal = None
#optional
newCase.InteractionID =  None
#optional
newCase.DueDate = None
#optional
newCase.Queue = None

newCase.Title = 'Title'

newCase.Description = 'description'

newCase.XCoord = '356570'

newCase.YCoord = '168708'

caseID = client.service.createCase(newCase)

Does anyone have any ideas why this is happening? I guess SUDS thinks that it should be there based on the WSDL.

Thanks.

Answer 1

Are you going to be using this as a config file, or to store infomation. Or is this to send data across the web?

Okay then, if this is so then why not use json or json-rpc, they are said to be much faster, easier to parse and far easier to read. XML is a horible data type and I personally can't wait till it dies, if your looking for data sending it would be well worth using the json's.

Answer 2

Your creating the element twice. Remove this:

classEventCode = client.factory.create('ns1:FWTEventCode') 
classEventCode.value = 2000023 

And change this:

newcase.ClassificationEventCode = 2000023

This should remove that extra tag.

Answer 3

I'm was getting exactly the same problem. The sequence of parameters in my SOAP request is being wrapped in an element with the same name as the first parameter. e.g.

....
   <ns0:Body>
      <ns1:CreationReq>
         <ReqType>
            <ReqType>1</ReqType>
            <Title>Mr</Title>
            ....
         </ReqType>
      </ns1:CreationReq>
   </ns0:Body>
....

I've checked the WSDL over to make sure there is no problem with it.

The problem it seems is because I created a CreationReq object using the client.factory.create method. Checking the client by printing it shows that the method I am calling does not take that object as a parameter. Rather it takes a list of named args.

So my code was:

req = client.factory.create('CreationReq')
req.ReqType = 1
req.Title = 'Mr'
resp = client.service.Create(req)

Now it is:

req = {}
req['ReqType'] = 1
req['Title'] = 'Mr'
resp = client.service.Create(**req)