Perl Maven

Perl tutorials and courses

Modern Perl Web Frameworks

  • Mojolicious light-weight web framework with rainbows and unicorns.
  • Perl Dancer light-weight web framework to rock.
  • Catalyst The MVC web framework of Perl.
  • PSGI/Plack, the low-level superglue between Perl web application frameworks and web servers.
  • CGI, the Common Gateway Interface, for old-school web applications.

Object Oriented Perl

  • OOP, the classic way to write Object Oriented Perl code.
  • Moo, the Minimalist Object Oriented system for Perl.
  • Moose, the 'post modern' Object Oriented system for Perl.

Other Series

Projects and Collections

Code-Maven series

If you are a beginner, or would like to refresh your Perl programming knowledge, you can go over the Perl tutorial or watch the Beginner Perl Maven video course.

If you need to maintain a large piece of software written in Perl by other people in the last 5-10-15 years, that's a challenge. Especially if you did not get proper training in Perl. You are probably limited to a specific and old version of Perl. Check out, the Perl tutorial! You can probably skip the part about installing Perl, but the rest of the tutorial will be relevant for you.

Perl is often used in Test Automation. If you work in this field, or if you'd like to work in this field (it is much more fun to find bugs in other people's code than in yours :), then you can read the Perl tutorial and the series on Test Automation using Perl.

If you build new web applications - either privately or inside a company - you can start by reading the article comparing CGI, mod_perl and PSGI. From there you can go on reading the generic Perl tutorial or the articles on Mojolicious, Perl Dancer, Catalyst, PSGI/Plack, or even CGI, the Common Gateway Interface, for old-school web applications.

In the off chance you are interested in topics other than Perl, especially related to Test Automation, Continuous Integration, Continuous Deployment, DevOps, then you are welcome to check out the list of DevOps related training courses.

Recent Articles

Detect recursion using state variables

As you might know Perl version 5.10 has introduce a keyword called state that allows the creation of so-called state variables. These are very similar to the static variables of C. You declare them insied a function. They are scoped to the function so you cannot reach them from the outside, but they never get destroyed and they are initialized only once.

Dave Horsfall suggested to use this feature to detect unwanted recursion. Or calling the same function twice.


Detect recursion using state variables


Course Management Application in Mojolicious

In my training course I give exercises to my students. They can (and in some of these course they must) submit them. I can then review them and give comments. I would like to have a web application to keep track of all the exercises and the submission.

In this experimental project Mark Gardner and myself will develop this application using live pair programming.


Course Management Application in Mojolicious