
Chapter 3. CICS as a service provider and requester 41
3.2 Inbound request processing
Figure 3-2 shows the processing that occurs when a service requester sends a
SOAP message over HTTP to a service provider application running in a CICS
region.
Figure 3-2 Web service run-time service provider processing
The CICS-supplied sockets listener transaction (CSOL) monitors the port
specified in the TCPIPSERVICE resource definition for incoming HTTP requests.
When the SOAP message arrives, CSOL attaches the transaction specified in
the TRANSACTION attribute of the TCPIPSERVICE definition. This will, by default
be the CICS-supplied Web attach transaction ...