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Resolved Error Calling WebService using appeonwebservicecomponent

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  1. Andres Slachevsky
    Andres Slachevsky
  2. PowerServer 2020 or older (Obsolete)
  3. Friday, 4 May 2018 14:26 PM UTC

Hello All,

im using this code to call a WS in a Appeon 2016 PB 12.5 APP

this code work

g_ws_caller = Create appeonwebservicecomponent 
g_ws_caller.calltype = "1" 
 
g_ws_caller.proxydllorurl="http://appeon-01/ws_sicaj/n_ws_sicaj.asmx"
g_ws_caller.classdescript=""
 
ws_paralist[1] = sqlca1.logid
ws_paralist[2] = sqlca1.logpass
 
ll_Ret=g_ws_caller.of_callwebservice("uf_connect_odbc",ws_paralist)
 
and any other WS with 2 or less parameters
when i try call any WS with 3 or more i get an error
for example
 
 appeonwebservicecomponent  l_ws_caller
l_ws_caller = Create appeonwebservicecomponent 
l_ws_caller.calltype = "1" 
 
l_ws_caller.proxydllorurl="http://appeon-01/ws_sicaj/n_ws_sicaj.asmx"
l_ws_caller.classdescript=""
 
ws_paralist[1] = "A"
ws_paralist[2] = "B"
ws_paralist[3] = "C"
   //  ws_paralist[4] = ps_modstring
 
li_ws_ret =l_ws_caller.of_callwebservice("uf_test",ws_paralist)
i get this error in the error lof of appeon server
2018-05-04 10:20:08.668 : Object reference not set to an instance of an object.
   at Appeon.Util.WebServiceUtil.DynamicProxy.Initialzie(Int32 methodType, String fullPath, String typeName, String methodName)
   at Appeon.Util.WebServiceUtil.WebServiceFactory.GetProxy(Int32 methodType, String fullPath, String typeName, String methodName)
   at Appeon.Server.Commands.CallWebServiceCommand.ExecuteWebServiceMethod()
   at Appeon.Server.Commands.CallWebServiceCommand.Execute()
  1. PowerServer
appeonwebservicecomponent proxydllorurl to localho...
private variable issu
Responses (2)
Appeon Support Team
Appeon Support Team Accepted Answer Pending Moderation
  1. Monday, 7 May 2018 00:40 AM UTC
  2. PowerServer 2020 or older (Obsolete)
  3. # 1

Hi,

Yes, you need to restart the IIS after deploying a Web service with a new method. It is mentiond in note 2 of page below of PowerServer online help.
https://www.appeon.com/support/documents/appeon_online_help/2017/workarounds_and_api_guide/ch01s03s08.html

Regards,
ZhaoKai

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Andres Slachevsky
Andres Slachevsky Accepted Answer Pending Moderation
  1. Friday, 4 May 2018 15:25 PM UTC
  2. PowerServer 2020 or older (Obsolete)
  3. # 2

i Found the problem

a Restart of the IIS Solve the porblem

​when a new version of the WebService is deploy the internal definition of the WebService in PowerServer is not updated until de IIS was Reset 

uf_connect_odbc was in the old version of the WebService and that was why it was working. the other method is only in the new version
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