Re: Reverse Proxy for Node.JS on IBM i

After looking up "mainstay" in the dictionary I can see I've used the word
poorly. (one of those moments where I feel really silly :-)

You are correct, Node.js does not *depend* on Web Sockets to work. What I
meant to say is that Node.js has seemingly made common** the concept that
many aspects of an app should be real-time updated. Or maybe better
stated, when user1 makes a change it is immediately reflected on user2's
screen without need for polling or page refreshes. Trello.com is a good
example of this (developed in Node.js).

**This is entirely my perception and shouldn't be considered factual.

I've also added the socket.io chat application to the nodejs repo for a
simple websocket/nodejs example:
https://bitbucket.org/litmis/nodejs/src/6f4655b53208/examples/websocket_chat/?at=master

Here*** is a video showing that Node.js chat app on IBM i. Note the
browser tools to inspect websocket traffic are still seemingly in their
infancy (FF doesn't support it and Chrome requires a change of focus to
update the Frames tab).

***http://www.screencast.com/t/rVgqcuuC


Aaron Bartell

On Fri, Dec 26, 2014 at 10:19 AM, Kevin Turner <
kevin.turner@xxxxxxxxxxxxxxxxxxxx> wrote:

I wouldn't say web sockets is the mainstay concept for node.js
applications. There are plenty of node.js based applications that have no
reliance on web sockets at all.

It is a topic that interests me however. We are currently using
Lightstreamer on the IBMi for web sockets to compliment our Apache based
web applications. Lightstreamer also has a built in node.js adaptor. I am
looking forward to getting node.js running to assess it.

Sent from my iPad

On 26 Dec 2014, at 15:19, Aaron Bartell <aaronbartell@xxxxxxxxx> wrote:

Hi Kelly,

Apache on IBM i still doesn't support Web Sockets and that is a mainstay
concept in Node.js apps. Note there is an Apache module that does Web
Sockets but it isn't included in the IBM i version yet (to my knowledge).

I have nginx running on IBM i based on the perzl.org AIX port (
http://www.perzl.org/aix/index.php?n=Main.Nginx) and nginx *does*

support

Web Sockets.

Here are some stats on webserver popularity:

http://news.netcraft.com/archives/2014/05/07/may-2014-web-server-survey.html

Btw, I've setup a site on bitbucket.org where Node.js collaboration can
happen more easily: https://bitbucket.org/litmis/nodejs

Why did I set it up?
- We need a place to easily post/refine code examples**.
- We need a place to log tasks needing to take place (i.e. document nginx
setup on IBM i***).
- We need to start conditioning the IBM i community on how to use modern
tooling for "social coding" (i.e. Git + fork/pull)****

NOTE: bitbucket.org is a free service for public repos. Sign-up for a
profile.

**https://bitbucket.org/litmis/nodejs/src
***https://bitbucket.org/litmis/nodejs/issue/2/nginx-port-instructions
****https://bitbucket.org/litmis/nodejs/wiki/contribute

Aaron Bartell

On Wed, Dec 24, 2014 at 8:21 PM, Kelly Cookson <KCookson@xxxxxxxxxxxx>
wrote:

What are people's thoughts about running web servers as reverse proxies
for Node.JS servers on the IBM i?

I assume one could set up an IBM HTTP server as a reverse proxy for a
Node.JS server. The IBM HTTP server could handle static content; the
Node.JS server could deliver web services for dynamic content.

I also assume WebSphere web server could also be set up as a reverse

proxy

for Node.JS. Would there be any benefits to using WebSphere instead of

the

IBM HTTP server as a reverse proxy on the IBM i?

I currently have NGINX set up as a reverse proxy for a Node.JS server

on a

windows machine (a learning environment). I like the fact that NGINX and
Node.JS are both event driven, making them fast and scalable. I'm not

sure

I will ever really need the scalability NGINX offers. IBM HTTP server

will

very likely meet all of my needs. Yet, out of curiosity, does anyone

know

if there are plans to port NGINX (or some other event driven web

server) to

the IBM i?

Thanks,

Kelly Cookson


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