CGI Introduction

Methods to Pass Parameters

There are two methods, how CGI exchanges parameters with the called program:

Get and Post Parameter Passing Methods

Methods	Input	Output
Get	environment variable QUERY_STRING	Standard Out (stdout)
Post	Standard In (stdin)	Standard Out (stdout)

Note: ILE RPG/400 and COBOL/400 offer routines to accomplish these C functions.

POST is the preferred method:

• Because on some platforms the enviroment variables have a finite maximum length. The Post method ensures that none of the parameters will be truncated.

Remember to enable the method you use within the HTTP configuration file.

Agenda

CGI030