Implementing exit-http-resp-headers user exit

The exit-http-resp-headers user exit provides access to any and all HTTP headers present in the response message from a Web service.

Signature of Web Service HTTP response headers user exit function

C terminology:

Function_Name(void * headerArrayPtr, int headerCount)

COBOL terminology:

 LINKAGE SECTION.
01 headerArrayPtr pointer.
01 headerCount    pic 9(9) usage comp-5.
01 header.
  03 namePtr      pointer.
  03 valuePtr     pointer.
01 headerName     pic x(1).
01 headerValue    pic x(1).
PROCEDURE DIVISION.
EXIT PROGRAM.
…
ENTRY "exit-http-resp-headers" using
     By value headerArrayPtr, headerCount.
           set address of header to headerArrayPtr
           perform headerCount times
               set address of headerName to namePtr of header
               set address of headerValue to valuePtr of header
               perform varying headerNameLen from 1 by 1
                       until headerName(headerNameLen:1) = low-value
               end-perform
               subtract 1 from headerNameLen
               perform varying headerValueLen from 1 by 1
                       until headerValue(headerValueLen:1) = low-value
               end-perform
.
     …
     EXIT PROGRAM.

The variables:

headerName

Name of the named value

headerArrayPtr

Pointer to an array of named values in the HTTP response header.

headerCount

Count of named values in the array.

The variables use I/O terminology:

headerArrayPtr

Input parameter.

headerCount

Input parameter.