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Moving Perl Mojolicious Routes to Their Own Module

Mojolicious Routes Cover

A mentee asked me over the weekend if there was a way within a Mojolicious web application to store the routes separately from the main application class. Here’s one way. These instructions assume you’re using Perl 5.34 and Mojolicious 9.19 (the latest as of this writing) via the terminal command line on a Linux, Unix, or macOS system; make the appropriate changes if this doesn’t apply to you.

First, if you haven’t already, create your Mojolicious app at your shell prompt:

mojo generate app Local::RouteDemo
  [mkdir] /Users/mgardner/Projects/blog/local_route_demo/script
  [write] /Users/mgardner/Projects/blog/local_route_demo/script/local_route_demo
  [chmod] /Users/mgardner/Projects/blog/local_route_demo/script/local_route_demo 744
  [mkdir] /Users/mgardner/Projects/blog/local_route_demo/lib/Local
  [write] /Users/mgardner/Projects/blog/local_route_demo/lib/Local/RouteDemo.pm
  [exist] /Users/mgardner/Projects/blog/local_route_demo
  [write] /Users/mgardner/Projects/blog/local_route_demo/local-route_demo.yml
  [mkdir] /Users/mgardner/Projects/blog/local_route_demo/lib/Local/RouteDemo/Controller
  [write] /Users/mgardner/Projects/blog/local_route_demo/lib/Local/RouteDemo/Controller/Example.pm
  [mkdir] /Users/mgardner/Projects/blog/local_route_demo/t
  [write] /Users/mgardner/Projects/blog/local_route_demo/t/basic.t
  [mkdir] /Users/mgardner/Projects/blog/local_route_demo/public
  [write] /Users/mgardner/Projects/blog/local_route_demo/public/index.html
  [mkdir] /Users/mgardner/Projects/blog/local_route_demo/templates/layouts
  [write] /Users/mgardner/Projects/blog/local_route_demo/templates/layouts/default.html.ep
  [mkdir] /Users/mgardner/Projects/blog/local_route_demo/templates/example
  [write] /Users/mgardner/Projects/blog/local_route_demo/templates/example/welcome.html.ep
cd local_route_demo

Create a new Perl module in your editor for storing your routes. Here we’re using Local::RouteDemo::Routes:

$ touch lib/Local/RouteDemo/Routes.pm
$ $EDITOR lib/Local/RouteDemo/Routes.pm

Make the module with a function that will create the routes you want, given a Mojolicious::Routes object. Here we’re just bringing over the default route created when we created our app:

# add more routes here


1;” data-lang=”text/x-perl”>

package Local::RouteDemo::Routes;
use strict;
use warnings qw(all -experimental::signatures);
use feature 'signatures';
use Exporter 'import';
our @EXPORT_OK = qw(make_routes);

sub make_routes ($router) {
    # add more routes here



Adjust the application class to load your new Routes module and call its exported function:

package Local::RouteDemo;
use Mojo::Base 'Mojolicious', -signatures;
use Local::RouteDemo::Routes 'make_routes';

# This method will run once at server start
sub startup ($self) {

    # Load configuration from config file
    my $config = $self->plugin('NotYAMLConfig');

    # Configure the application

    # Make routes



Finally, run your tests and/or manually test your routes to be sure everything works OK:

prove -vlr t
t/basic.t .. [2021-06-07 12:21:55.36917] [58779] [debug] [elVGykGVWlOt] GET "https://dzone.com/"
[2021-06-07 12:21:55.36972] [58779] [debug] [elVGykGVWlOt] Routing to controller "Local::RouteDemo::Controller::Example" and action "welcome"
[2021-06-07 12:21:55.37137] [58779] [debug] [elVGykGVWlOt] Rendering template "example/welcome.html.ep"
[2021-06-07 12:21:55.37343] [58779] [debug] [elVGykGVWlOt] Rendering template "layouts/default.html.ep"
[2021-06-07 12:21:55.37495] [58779] [debug] [elVGykGVWlOt] 200 OK (0.005772s, 173.250/s)

ok 1 - GET /
ok 2 - 200 OK
ok 3 - content is similar
All tests successful.
Files=1, Tests=3,  1 wallclock secs ( 0.02 usr  0.01 sys +  0.38 cusr  0.11 csys =  0.52 CPU)
Result: PASS
script/local_route_demo get /
[2021-06-07 12:22:29.55930] [58889] [debug] [f3YoaFhkwJ42] GET "https://dzone.com/"
[2021-06-07 12:22:29.55990] [58889] [debug] [f3YoaFhkwJ42] Routing to controller "Local::RouteDemo::Controller::Example" and action "welcome"
[2021-06-07 12:22:29.56059] [58889] [debug] [f3YoaFhkwJ42] Rendering template "example/welcome.html.ep"
[2021-06-07 12:22:29.56269] [58889] [debug] [f3YoaFhkwJ42] Rendering template "layouts/default.html.ep"
[2021-06-07 12:22:29.56432] [58889] [debug] [f3YoaFhkwJ42] 200 OK (0.005004s, 199.840/s)
<!DOCTYPE html>
  <body><h2>Welcome to the Mojolicious real-time web framework!</h2>
  This page was generated from the template "templates/example/welcome.html.ep"
  and the layout "templates/layouts/default.html.ep",
  <a href="https://dzone.com/">click here</a> to reload the page or
  <a href="https://dzone.com/index.html">here</a> to move forward to a static page.

You can find a git repository of this work on GitHub, and here’s a commit of all the changes made to the default Mojolicious application so you can see the differences.

Credit: Source link

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