Thank you ZhaoKai.

Now I am implementing a different webservice with several parameters - all simple datatypes. 

I don't get Error 500 any more when I call appeonwebservicecomponent.of_callwebservice() function. 

Now I am getting -1 return with an ErrorText 'Object reference not set to an instance of an object' 

ReturnValue always comes back as 'Undefined'.

In PB the webservice' return is loaded by a soapconnection into a structure, and it works perfectly in PB. 



Does this all mean that Appeon will not handle structures as returns either?

Hi Viktor,



 



Here's a suggestion, try either one of these three options:





 



INTEGER li_agency, li_eligibility_id, li_worker_id

li_agency = lstr_rqst.agency_id

li_eligibility_id = lstr_rqst.eligibility_id

li_worker_id = lstr_rqst.worker_id

la_paralist[1] = li_agency

la_paralist[UpperBound( la_paralist)+1] =  li_eligibility_id 

la_paralist[UpperBound( la_paralist)+1] = li_worker_id 

of_callwebservice("WS_Method", la_paralist)

 





 



STRING ls_parm

ls_parm ='{"parm1" : "' + STRING(lstr_rqst.agency_id) + '" , "parm2" : "' + STRING(lstr_rqst.eligibility_id) + '", "parm3" : "' +  STRING(lstr_rqst.worker_id) + '"}'

​​of_callwebservice("WS_Method", ls_parm)

 





 



​​ANY la_parm

la_parm ='{"parm1" : "' + STRING(lstr_rqst.agency_id) + '" , "parm2" : "' + STRING(lstr_rqst.eligibility_id) + '", "parm3" : "' +  STRING(lstr_rqst.worker_id) + '"}'

​​of_callwebservice("WS_Method", la_parm)









 



​Please do let us know if this worked for you. Otherwise, if you could share with us the web service to test...?



 



 



Regards,

Thank you Govinda, I tried these approaches among many others. I am dealing with a very specific webservice which will only take a structure as a parameter. 

I got a confirmation from tech team that the Appeon workaround only supports basic datatypes. My next step will be to implement caller.calltype="2" approach deploying a DLL to the PowerServer. 

Unfortunately I have no control over the webservice we work with and I cannot share it here.

Viktor,



 



I assume you have already set the Parameter as "Any" datatype. If so, you would need to debug the web service to see why it is not accepting your array. 



 



It could in fact be that your Web Service is looking for a very specific parameter datatype.



 



 



Regards,

Hi Govinda;



      That could well be Viktor`s issue as the ANY datatype is not a standard Web Service datatype as recognized by WC3 standards. Typically, web service parameters and returned results must be a within standard "C" data types.



Regards ... Chris

Hi Chris,



 



Based on documentation the function of_callwebservice would be sending, by reference, an array of "any" datatype to the web service. But, structures are not support as parameters for calling Web Services in PowerServer (see here). 



 



I recall having sent parameters this way before with success. It might just be the way he is sending them or, most likely, that the Web Service itself is not supporting the parameter he passed to it.



 



 



Regards,