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PB Classic > .NET Webservice calling external SOAP webservice. Object reference not set to an instance of an object
  1. Issue
  2.  Build
  3.  Service
  4.  SOAP
0 Votes
  1. Alan Rice
  2. PowerBuilder
  3. Monday, 21 May 2018 03:19 PM UTC

.NET Webservice calling external SOAP webservice using WS Proxy. Object reference not set to an instance of an object

Hi,

I hope someone can help with this one.

This problem only happens on a production server not on my development machine. The production has a C:\ but uses another drive for websites, may need other permissions set if PB is looking for access to a folder I don't know about.

 

I have a Powerbuilder 12.1 project which deploys a .NET Webservice. 
This application connects to completely separate SOAP webservice. 
On the production server I get the following error :

System.NullReferenceException: Object reference not set to an instance of an object.
   at c__storageservices.getsharedaccesssignatureurl(PBString accesstoken, PBString containername, PBString filename) in c:\Development\xxxxxxxxxxxxxxxxxxxx\pb2cstempout\xxxxxxxxxxxxxxxxxxxx\storageservices.cs:line 0
   at c__n_mares.alantest() in c:\Development\xxxxxxxxxxxxxxxxxxxx\pb2cstempout\xxxxxxxxxxxxxxxxxxxx\n_mares.alantest(S):line 14
   at cns_xxxxxxxxxxxxxxxxxxxx.PBWS__n_mares.alantest() in c:\Development\xxxxxxxxxxxxxxxxxxxx\pb2cstempout\xxxxxxxxxxxxxxxxxxxx\xxxxxxxxxxxxxxxxxxxx.asmx.cs:line 3954
   --- End of inner exception stack trace ---
   at Sybase.PowerBuilder.Web.WebServices.PBWebService.HandleException(Exception ex)
   at cns_xxxxxxxxxxxxxxxxxxxx.PBWS__n_mares.alantest() in c:\Development\xxxxxxxxxxxxxxxxxxxx\pb2cstempout\xxxxxxxxxxxxxxxxxxxx\xxxxxxxxxxxxxxxxxxxx.asmx.cs:line 3964

xxxxxxxxxxxxxxxxxxxx = project name folder

c:\Development\xxxxxxxxxxxxxxxxxxxx\pb2cstempout is a folder present on my machine but does not exist on the production server.
In fact the access to C: would be limited on production with everything running from another drive.

Could there be a permissions issue that I can update?

 

Call to Webservice

Long        ll_conn_result, ll_log
String ls_access_token, ls_filename, ls_url
storageservices l_storageservices                                  // Declare proxy
SoapConnection  conn                                               // Define SoapConnection - if it gives out that soapconnection is an invalid type something went wrong with the pbx import
 
conn    =   create SoapConnection                          // Instantiated connection
ll_log  =   conn.SetSoapLogFile ("C:\mySoapLog.log")       // Set trace file to record soap interchange data,
                                                                     // if string is "", disables the feature  
 
ls_access_token = 'test123'
ls_filename = 'test.pdf'
ll_conn_result = Conn.CreateInstance(l_storageservices,"storageservices")
 
ls_url = l_storageservices.getsharedaccesssignatureurl(ls_access_token, 'mareforms', ls_filename)
 
// Destroy Conn
destroy conn
 
return ls_url
  

 

Any help would be appreciated, even if its a suggestion of where I can find a better error or steps to get to the bottom of it as I am at a loss.

 

Thanks,
Alan

 

 

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