Release 10.1A: OpenEdge Development:
Web Services

Handling Errors in Progress 4GL Requests to Web Services

As described previously, the ERROR condition can result from a Web service request by:

A SOAP fault returned by the Web service.
A 4GL internal error raised by OpenEdge.
An error intentionally raised by the 4GL application (using the RETURN ERROR statement) in a SOAP request header callback procedure or a SOAP response header callback procedure.

For a thorough overview of handling all types of errors, see Chapter 1, " Web Services in OpenEdge."

This chapter focuses on how to handle SOAP faults and generally how to debug Web service requests, including the following sections:

Handling SOAP faults
Detecting a SOAP fault
Managing a SOAP fault
Example 4GL accessing a SOAP fault
Debugging 4GL applications that call Web services