How to call HTTP from RPGLE

What IBM i OS version are you running?

Here are a few alternatives:

IBM supplies a (free) set of IBM i DB2 functions that make it very easy to access web services from SQL (which you can easily embed in RPG, of course):

https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/IBM%20i%20Technology%20Updates/page/New%20HTTP%20functions%20added%20to%20SYSTOOLS

If you don't want to go the SQL route, Scott Klement's HTTPAPI simplifies the process of using HTTP from RPG:

https://www.scottklement.com/httpapi/

For simple requests/responses, you can also use cURL.  The first link is from an older EE thread.  The second link shows you how you can get cURL as part of 5733-OPS Open Source licensed program.

https://www.experts-exchange.com/questions/28092413/Make-a-call-to-a-URL-from-iSeries.html
https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/IBM%20i%20Technology%20Updates/page/Open%20Source%20Technologies

To use cURL to access a web service, you would generally submit the request, and redirect output ti an IFS file, then process the IFS file.  

https://www.mcpressonline.com/programming/web-languages/techtip-talk-to-the-internet-with-curl

7R3M0

Gary, we are looking at a GUI interface to overlay our green screens.  These seem to have what I need as far as calling an HTML.  Have you ever experienced a GUI green screen eliminator, and if so, do you have a suggestion.

Ok, that's a whole different subject - you should open a new question.