Processing examples for IBM HTTP Server

Figure 1 shows how the CICS® web support processes a request from a web client that is connected to the IBM® HTTP Server.

Figure 1. Processing a request from the IBM HTTP Server
This figure illustrates how processes a request from a web client that is connected to the IBM HTTP Server. The process is described in the text.
  1. The web client constructs an HTTP request which is passed across the network to Communications Server.
  2. Communications Server relays the request to IBM HTTP Server.
  3. IBM HTTP Server calls the CICS web server plug-in.
  4. The CICS web server plug-in constructs a request for the CICS business logic interface and passes it to CICS using the External CICS Interface (EXCI).
  5. The CICS business logic interface invokes the requested CICS application program and returns any output in the COMMAREA.