Hello,
I am trying to reach a web service using the SOAP package. I succeeded
calling the web service, but not sending parameters to it. After much
research and tries, I think I found that the problem lies in the
namespace including the parameters in the SOAP body.
In short, my question is: how can I send unqualified parameters in the
SOAP body of a call produced through the SOAP package? Details of what I
try to do follow.
The SOAP package sends this soap envelope to my test web service (wsdl
here [http://smg8.ulb.ac.be:8080/web2?wsdl]).
<SOAP-ENV:Envelope
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/";
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:xsd="http://www.w3.org/2001/XMLSchema";
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";>
<SOAP-ENV:Body>
<greetMe xmlns="http://web2.web/";>
<arg0 xsi:type="xsd:string">Olivier</arg0>
</greetMe>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
The R commands used are:
library("SSOAP")
smg8TestService <- SOAPServer("smg8.ulb.ac.be", "/web2/TestService", 8080)
contentGreet <- .SOAP(server=smg8TestService, method="greetMe",
arg0="Olivier", action="", xmlns="http://web2.web/";, .convert=FALSE)
But, AFAIU, the arg0 tag should NOT be qualified, according to the WSDL.
Hence, my web service implementation never receives the "Olivier"
argument and rather receives "null" as the string parameter.
When calling the web service using an other client (eclipse Web services
explorer), I see it generates the following body:
<soapenv:Envelope
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/";
xmlns:q0="http://web2.web/"; xmlns:xsd="http://www.w3.org/2001/XMLSchema";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
<soapenv:Body>
<q0:greetMe>
<arg0>Olivier-from-eclipse</arg0>
</q0:greetMe>
</soapenv:Body>
</soapenv:Envelope>
Thus with the "arg0" tag being unqualified (i.e. not in the
"http://web2.web/"; namespace). And that works: my web service
implementation indeed receives the "Olivier-from-eclipse" parameter as
string.
Can anyone confirm that my understanding of what happens and why my web
service implementation, when called by the R client, does not see the
parameters, seems correct?
If it seems correct, then how can I send unqualified parameters in the
SOAP body using the SOAP package? Thanks for any help!
Olivier
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