Top WebSocket/Perl solution for maximum effectiveness

Currently, the company I am employed at relies on Perl for all backend tasks. However, we are interested in implementing real-time communication between server processes and connected clients through web browsers.

We currently use Apache as our web server with mod_perl. My main question is whether there is a practical way to integrate a WebSocket server into this setup that I may not be aware of.

One solution that seems promising is Mojolicious, but I am not very familiar with it yet. Can Mojolicious be used in conjunction with my current mod_perl environment? Would it need to run as a standalone web server process?

This leads me to my second question. What is the best approach when dealing with multiple Perl files running on Apache/mod_perl, where updates need to be pushed to connected users? Currently, we are using ajax polling, but I wonder if there is a more efficient method.

The challenge I face is how these scripts would communicate with a separate WebSocket server if one were implemented. Would communication be done through pipes, sockets, or shared memory?

If I were to opt for an independent WebSocket server, could it be written in any language like Ruby or Node.js? Or is there a better solution that integrates well with existing Perl/mod_perl structures?

TL;DR
Is it advisable to have a standalone WebSocket server that communicates with both Apache/mod_perl scripts and their connected clients?

Answer №1

If you're interested in creating your own event-driven WebSocket server, I recommend checking out the AnyEvent CPAN module. You can find more information at:

Using this module, you'll be able to develop a standalone WebSocket server and there are plenty of examples available online through Google or in AnyEvent's perldoc.

Answer №2

Ever since the original question was asked back in 2012, a new perl module called WebSocket has been introduced on CPAN. This module is known for its ease of use and versatility.

For those using Apache, utilizing a reverse proxy is recommended. Here's an example:

ProxyRequests Off
ProxyPass /wss            ws://localhost:8080
ProxyPassReverse /wss     ws://localhost:8080

To implement this setup, a perl script should make use of WebSocket::Server

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