I have published a process model as web-service. The web service call works fine

vasudhab over 10 years ago

I have published a process model as web-service. The web service call works fine with "Call Web Service" Node in another process model, BUT when I use webservicequery function as follows
= webservicequery(
a!wsConfig(
wsdlUrl: "myserverurl/.../timesheetws
service: "{appiancorp.com/.../pm}timesheetws",
port: "StartProcessIFPort",
operation: "{appiancorp.com/.../pm}start"
),
{
startRequest: {
username: "xx",
password: "xx"
}
}
)

I get XML parsing error:

Expression evaluation error at function 'webservicequery': Error evaluating function 'webservicequery' : XML handling failure trying to convert value WsResult{{httpStatusCode=200, httpErrorOccurred=false, fault=null, returnValue={TypedValue[it=3,v=startResponse]=TypedValue[it=5974,v={268440681}]}}} to Appian type WsResult (id=620)

Has anybody faced this before? Please help.
...

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0 joel671 over 10 years ago

Are you trying to use a CDT for your inputs? If so this isn't supported see forum.appian.com/.../Publishing_Process_Models_as_Web_Services.html
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0 vasudhab over 10 years ago

Thanks for your reply.. As of now it is a simple process model and it doesn't require external input. startRequest is the type created by web service, which accepts username and password as input. if not like this,how do we pass credentials to web service then?
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0 Aleksi White
Appian Employee
over 10 years ago

Try using a!wsHttpCredentials():
forum.appian.com/.../Connector_Functions.html
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0 Aleksi White
Appian Employee
over 10 years ago

Sorry, link should be
forum.appian.com/.../Connector_Functions.html
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0 subramanian Valliappan
Certified Lead Developer
over 10 years ago

Hi I have tried with a!wsHttpCredentials() still facing the same issue

webservicequery(
a!wsConfig(wsdlUrl:"myserverurl/.../WsTesting ,
service:"{appiancorp.com/.../pm}WsTesting",
port:"StartProcessIFPort" ,
operation: "{appiancorp.com/.../pm}start",
wsdlCredentials:a!wsHttpCredentials( "xx", "xx",""),
invocationCredentials:a!wsHttpCredentials( "xx", "xx","")), {
startRequest: {
username: "XX",
           password:"XX",
           testVariable:"xyz"
}
          })
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0 Aleksi White
Appian Employee
over 10 years ago

Try removing the startRequest parameter, as the credentials in that should already be part of the a!wsHttpCredentials function
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0 subramanian Valliappan
Certified Lead Developer
over 10 years ago

If I remove the startRequest parameter The expression rule fails with the same error as above and even the process instance does not triggered, previously the process instance was getting triggered.

Expression evaluation error at function 'webservicequery' [line 2]: Error evaluating function 'webservicequery' : XML handling failure trying to convert value WsResult{{httpStatusCode=200, httpErrorOccurred=false, fault=<SOAP-ENV:Fault xmlns:SOAP-ENV="schemas.xmlsoap.org/.../faultcode><faultstring>This operation requires a username and password</faultstring></SOAP-ENV:Fault>, returnValue={TypedValue[it=3,v=startResponse]=TypedValue[it=4298,v=<null>]}}} to Appian type WsResult (id=1368)
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0 vasudhab over 10 years ago

Same here!
Is this XML handling error coming up because, PM published as web service has output of Type 'startResponse' which has single field ie processId ; whereas return-type of webservicequery() is WsResult ?
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0 atulp over 10 years ago

Even am stuck with this issue.. This very critical for us. Any solution or work-around available?
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0 Eduardo Fuentes
Appian Employee
over 10 years ago

I was able to reproduce this locally. Let me keep digging to find out why this is happening.
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