Connecting to a CICS Transaction Server for z/OS application

Connecting to a CICS® Transaction Server for z/OS® application involves creating a message flow, building a message, and processing the response from the CICSRequest node.

About this task

To connect to a CICS application, complete the following steps.

Procedure

  1. Define the COMMAREA data structure as a message set, as described in Defining a CICS Transaction Server for z/OS data structure.
  2. Configure IP InterCommunications (IPIC) protocol on CICS, as described in Preparing the environment for the CICSRequest node.
  3. Optional: Configure the CICSRequest node to communicate with CICS Transaction Server for z/OS over the Secure Sockets Layer (SSL) protocol, as described in Securing the connection to CICS Transaction Server for z/OS by using SSL.
  4. Develop a message flow that contains a CICSRequest node, as described in Developing a message flow with a CICSRequest node.
  5. Build a message to send to the CICSRequest node, as described in Building a message for the CICSRequest node.
  6. Process the response from the CICSRequest node, as described in Processing responses from a CICSRequest node.

What to do next

You can change the connection details for the CICSRequest node by using the CICSConnection configurable service, as described in Changing connection information for the CICSRequest node.

The CICSRequest node can also use an identity that is present on an input message, and propagate it to CICS, by using the Propagate property on the security profile that is defined for the node. For more information, see Propagating security credentials to CICS Transaction Server for z/OS