Re: [IBMiOSS] [EXTERNAL] Re: Ports and routes needed to replace very large numbers of green screens

I share Kelly's concern about ports. How do people handle it? If I magically converted all our 5250 apps to Node apps, I'd have thousands of ports listening.




-----Original Message-----
From: John Yeung [mailto:gallium.arsenide@xxxxxxxxx]
Sent: Monday, June 04, 2018 11:33 AM
To: IBMi Open Source Roundtable <opensource@xxxxxxxxxxxx>
Subject: Re: [IBMiOSS] [EXTERNAL] Re: Ports and routes needed to replace very large numbers of green screens

On Mon, Jun 4, 2018 at 9:56 AM, Kelly Cookson <KCookson@xxxxxxxxxxxx> wrote:

I guess maybe I should ask the question more broadly. We have many hundreds (at least) of interactive COBOL programs. Many of these interactive COBOL programs have multiple green screens associated with them. Is there a way to replace all of these green screens with web pages and not create a need for multiple web servers (ports) and/or a lot of routes within those web servers?

Richard already answered this. To paraphrase, he said "don't worry - just use one port, and the server will handle it".

I'm not an expert, but as far as I can tell, this is how everyone does it. And until you asked, I had never heard of anyone (on any platform, using any Web framework) expressing any concern over too many ports or too many routes.

Please understand I am not saying your concern is unjustified. It might be justified, especially if your situation is somehow extremely unusual. But I don't think it is.

John Y.