Mojolicious::Guides::TUseriContributed Perl Mojolicious::Guides::Tutorial(3pm)
NAME
Mojolicious::Guides::Tutorial - Get started with Mojolicious
TUTORIAL
A quick example-driven introduction to the wonders of
Mojolicious::Lite. Almost everything you'll learn here also applies to
full Mojolicious applications.
This is only the first of the Mojolicious::Guides. Other guides delve
deeper into topics like growing a Mojolicious::Lite prototype into a
well-structured Mojolicious application, routing, rendering and more.
It is highly encouraged that readers continue on to the remaining
guides after reading this one.
Hello World
A simple Hello World application can look like this, strict, warnings,
utf8 and Perl 5.16 features are automatically enabled and a few
functions imported, when you use Mojolicious::Lite, turning your script
into a full featured web application.
#!/usr/bin/env perl
use Mojolicious::Lite -signatures;
get '/' => sub ($c) {
$c->render(text => 'Hello World!');
};
app->start;
With Mojolicious::Command::Author::generate::lite_app there is also a
helper command to generate a small example application.
$ mojo generate lite-app myapp.pl
Commands
Many different commands are automatically available from the command
line. CGI and PSGI environments can even be detected and will usually
just work without commands.
$ ./myapp.pl daemon
Web application available at http://127.0.0.1:3000
$ ./myapp.pl daemon -l http://*:8080
Web application available at http://127.0.0.1:8080
$ ./myapp.pl cgi
...CGI output...
$ ./myapp.pl get /
Hello World!
$ ./myapp.pl
...List of available commands (or automatically detected environment)...
A call to "start" in Mojolicious ("app->start"), which starts the
command system, should be the last expression in your application,
because its return value can be significant.
# Use @ARGV to pick a command
app->start;
# Start the "daemon" command
app->start('daemon', '-l', 'http://*:8080');
Reloading
Your application will automatically reload itself if you start it with
the morbo development web server, so you don't have to restart the
server after every change.
$ morbo ./myapp.pl
Web application available at http://127.0.0.1:3000
For more information about how to deploy your application see also
"DEPLOYMENT" in Mojolicious::Guides::Cookbook.
Routes
Routes are basically just fancy paths that can contain different kinds
of placeholders and usually lead to an action, if they match the path
part of the request URL. The first argument passed to all actions ($c)
is a Mojolicious::Controller object, containing both the HTTP request
and response.
use Mojolicious::Lite -signatures;
# Route leading to an action that renders some text
get '/foo' => sub ($c) {
$c->render(text => 'Hello World!');
};
app->start;
Response content is often generated by actions with "render" in
Mojolicious::Controller, but more about that later.
GET/POST parameters
All "GET" and "POST" parameters sent with the request are accessible
via "param" in Mojolicious::Controller.
use Mojolicious::Lite -signatures;
# /foo?user=sri
get '/foo' => sub ($c) {
my $user = $c->param('user');
$c->render(text => "Hello $user.");
};
app->start;
Stash and templates
The "stash" in Mojolicious::Controller is used to pass data to
templates, which can be inlined in the "DATA" section. A few stash
values like "template", "text" and "data" are reserved and will be used
by "render" in Mojolicious::Controller to decide how a response should
be generated.
use Mojolicious::Lite -signatures;
# Route leading to an action that renders a template
get '/foo' => sub ($c) {
$c->stash(one => 23);
$c->render(template => 'magic', two => 24);
};
app->start;
__DATA__
@@ magic.html.ep
The magic numbers are <%= $one %> and <%= $two %>.
For more information about templates see also "Embedded Perl" in
Mojolicious::Guides::Rendering.
HTTP
"req" in Mojolicious::Controller and "res" in Mojolicious::Controller
give you full access to all HTTP features and information.
use Mojolicious::Lite -signatures;
# Access request information
get '/agent' => sub ($c) {
my $host = $c->req->url->to_abs->host;
my $ua = $c->req->headers->user_agent;
$c->render(text => "Request by $ua reached $host.");
};
# Echo the request body and send custom header with response
post '/echo' => sub ($c) {
$c->res->headers->header('X-Bender' => 'Bite my shiny metal ass!');
$c->render(data => $c->req->body);
};
app->start;
You can test the more advanced examples right from the command line
with Mojolicious::Command::get.
$ ./myapp.pl get -v -M POST -c 'test' /echo
JSON
JSON is the most commonly used data-interchange format for web
services. Mojolicious loves JSON and comes with the possibly fastest
pure-Perl implementation Mojo::JSON built right in, which is accessible
through "json" in Mojo::Message as well as the reserved stash value
"json".
use Mojolicious::Lite -signatures;
# Modify the received JSON document and return it
put '/reverse' => sub ($c) {
my $hash = $c->req->json;
$hash->{message} = reverse $hash->{message};
$c->render(json => $hash);
};
app->start;
You can send JSON documents from the command line with
Mojolicious::Command::get.
$ ./myapp.pl get -M PUT -c '{"message":"Hello Mojo!"}' /reverse
Built-in "exception" and "not_found" pages
During development you will encounter these pages whenever you make a
mistake, they are gorgeous and contain a lot of valuable information
that will aid you in debugging your application.
use Mojolicious::Lite -signatures;
# Not found (404)
get '/missing' => sub ($c) {
$c->render(template => 'does_not_exist');
};
# Exception (500)
get '/dies' => sub { die 'Intentional error' };
app->start;
You can even use CSS selectors with Mojolicious::Command::get to
extract only the information you're actually interested in.
$ ./myapp.pl get /dies '#error'
And don't worry about revealing too much information on these pages,
they are only available during development, and will be replaced
automatically with pages that don't reveal any sensitive information in
a production environment.
Route names
All routes can have a name associated with them, this allows automatic
template detection and backreferencing with "url_for" in
Mojolicious::Controller, on which many methods and helpers like
"link_to" in Mojolicious::Plugin::TagHelpers rely.
use Mojolicious::Lite -signatures;
# Render the template "index.html.ep"
get '/' => sub ($c) {
$c->render;
} => 'index';
# Render the template "hello.html.ep"
get '/hello';
app->start;
__DATA__
@@ index.html.ep
<%= link_to Hello => 'hello' %>.
<%= link_to Reload => 'index' %>.
@@ hello.html.ep
Hello World!
Nameless routes get an automatically generated one assigned that is
simply equal to the route itself without non-word characters.
Layouts
Templates can have layouts too, you just select one with the helper
"layout" in Mojolicious::Plugin::DefaultHelpers and place the result of
the current template with the helper "content" in
Mojolicious::Plugin::DefaultHelpers.
use Mojolicious::Lite;
get '/with_layout';
app->start;
__DATA__
@@ with_layout.html.ep
% title 'Green';
% layout 'green';
Hello World!
@@ layouts/green.html.ep
<!DOCTYPE html>
<html>
<head><title><%= title %></title></head>
<body><%= content %></body>
</html>
The stash or helpers like "title" in
Mojolicious::Plugin::DefaultHelpers can be used to pass additional data
to the layout.
Blocks
Template blocks can be used like normal Perl functions and are always
delimited by the "begin" and "end" keywords, they are the foundation
for many helpers.
use Mojolicious::Lite;
get '/with_block' => 'block';
app->start;
__DATA__
@@ block.html.ep
% my $link = begin
% my ($url, $name) = @_;
Try <%= link_to $url => begin %><%= $name %><% end %>.
% end
<!DOCTYPE html>
<html>
<head><title>Sebastians frameworks</title></head>
<body>
%= $link->('http://mojolicious.org', 'Mojolicious')
%= $link->('http://mojojs.org', 'mojo.js')
</body>
</html>
Helpers
Helpers are little functions you can create with the keyword "helper"
in Mojolicious::Lite and reuse throughout your whole application, from
actions to templates.
use Mojolicious::Lite -signatures;
# A helper to identify visitors
helper whois => sub ($c) {
my $agent = $c->req->headers->user_agent || 'Anonymous';
my $ip = $c->tx->remote_address;
return "$agent ($ip)";
};
# Use helper in action and template
get '/secret' => sub ($c) {
my $user = $c->whois;
$c->app->log->debug("Request from $user");
};
app->start;
__DATA__
@@ secret.html.ep
We know who you are <%= whois %>.
A list of all built-in ones can be found in
Mojolicious::Plugin::DefaultHelpers and
Mojolicious::Plugin::TagHelpers.
Plugins
Plugins are application extensions that help with code sharing and
organization. You can load a plugin with the keyword "plugin" in
Mojolicious::Lite, which can omit the "Mojolicious::Plugin::" part of
the name, and optionally provide configuration for the plugin.
use Mojolicious::Lite;
plugin Config => {file => '/etc/myapp.conf', default => {foo => 'bar'}};
# Return configured foo value, or default if no configuration file
get '/foo' => sub ($c) {
my $foo = $c->app->config('foo');
$c->render(json => {foo => $foo});
};
app->start;
Mojolicious::Plugin::Config is a built-in plugin which can populate
"config" in Mojolicious using a config file. Plugins can also set up
routes, hooks, handlers, or even load other plugins. A list of built-in
plugins can be found at "PLUGINS" in Mojolicious::Plugins, and many
more are available from CPAN
<https://metacpan.org/search?q=Mojolicious+Plugin>.
Placeholders
Route placeholders allow capturing parts of a request path until a "/"
or "." separator occurs, similar to the regular expression "([^/.]+)".
Results are accessible via "stash" in Mojolicious::Controller and
"param" in Mojolicious::Controller.
use Mojolicious::Lite -signatures;
# /foo/test
# /foo/test123
get '/foo/:bar' => sub ($c) {
my $bar = $c->stash('bar');
$c->render(text => "Our :bar placeholder matched $bar");
};
# /testsomething/foo
# /test123something/foo
get '/<:bar>something/foo' => sub ($c) {
my $bar = $c->param('bar');
$c->render(text => "Our :bar placeholder matched $bar");
};
app->start;
To separate them from the surrounding text, you can surround your
placeholders with "<" and ">", which also makes the colon prefix
optional.
Relaxed Placeholders
Relaxed placeholders allow matching of everything until a "/" occurs,
similar to the regular expression "([^/]+)".
use Mojolicious::Lite;
# /hello/test
# /hello/test.html
get '/hello/#you' => 'groovy';
app->start;
__DATA__
@@ groovy.html.ep
Your name is <%= $you %>.
Wildcard placeholders
Wildcard placeholders allow matching absolutely everything, including
"/" and ".", similar to the regular expression "(.+)".
use Mojolicious::Lite;
# /hello/test
# /hello/test123
# /hello/test.123/test/123
get '/hello/*you' => 'groovy';
app->start;
__DATA__
@@ groovy.html.ep
Your name is <%= $you %>.
HTTP methods
Routes can be restricted to specific request methods with different
keywords like "get" in Mojolicious::Lite and "any" in
Mojolicious::Lite.
use Mojolicious::Lite -signatures;
# GET /hello
get '/hello' => sub ($c) {
$c->render(text => 'Hello World!');
};
# PUT /hello
put '/hello' => sub ($c) {
my $size = length $c->req->body;
$c->render(text => "You uploaded $size bytes to /hello.");
};
# GET|POST|PATCH /bye
any ['GET', 'POST', 'PATCH'] => '/bye' => sub ($c) {
$c->render(text => 'Bye World!');
};
# * /whatever
any '/whatever' => sub ($c) {
my $method = $c->req->method;
$c->render(text => "You called /whatever with $method.");
};
app->start;
Optional placeholders
All placeholders require a value, but by assigning them default values
you can make capturing optional.
use Mojolicious::Lite -signatures;
# /hello
# /hello/Sara
get '/hello/:name' => {name => 'Sebastian', day => 'Monday'} => sub ($c) {
$c->render(template => 'groovy', format => 'txt');
};
app->start;
__DATA__
@@ groovy.txt.ep
My name is <%= $name %> and it is <%= $day %>.
Default values that don't belong to a placeholder simply get merged
into the stash all the time.
Restrictive placeholders
A very easy way to make placeholders more restrictive are alternatives,
you just make a list of possible values.
use Mojolicious::Lite -signatures;
# /test
# /123
any '/:foo' => [foo => ['test', '123']] => sub ($c) {
my $foo = $c->param('foo');
$c->render(text => "Our :foo placeholder matched $foo");
};
app->start;
All placeholders get compiled to a regular expression internally, this
process can also be customized. Just make sure not to use "^" and "$",
or capturing groups "(...)", non-capturing groups "(?:...)" are fine
though.
use Mojolicious::Lite -signatures;
# /1
# /123
any '/:bar' => [bar => qr/\d+/] => sub ($c) {
my $bar = $c->param('bar');
$c->render(text => "Our :bar placeholder matched $bar");
};
app->start;
You can take a closer look at all the generated regular expressions
with the command Mojolicious::Command::routes.
$ ./myapp.pl routes -v
Under
Authentication and code shared between multiple routes can be realized
easily with routes generated by "under" in Mojolicious::Lite. All
following routes are only evaluated if the callback returned a true
value.
use Mojolicious::Lite -signatures;
# Authenticate based on name parameter
under sub ($c) {
# Authenticated
my $name = $c->param('name') || '';
return 1 if $name eq 'Bender';
# Not authenticated
$c->render(template => 'denied');
return undef;
};
# Only reached when authenticated
get '/' => 'index';
app->start;
__DATA__
@@ denied.html.ep
You are not Bender, permission denied.
@@ index.html.ep
Hi Bender.
Prefixing multiple routes is another good use for it.
use Mojolicious::Lite;
# /foo
under '/foo';
# /foo/bar
get '/bar' => {text => 'foo bar'};
# /foo/baz
get '/baz' => {text => 'foo baz'};
# / (reset)
under '/' => {msg => 'whatever'};
# /bar
get '/bar' => {inline => '<%= $msg %> works'};
app->start;
You can also group related routes with "group" in Mojolicious::Lite,
which allows nesting of routes generated with "under" in
Mojolicious::Lite.
use Mojolicious::Lite -signatures;
# Global logic shared by all routes
under sub ($c) {
return 1 if $c->req->headers->header('X-Bender');
$c->render(text => "You're not Bender.");
return undef;
};
# Admin section
group {
# Local logic shared only by routes in this group
under '/admin' => sub ($c) {
return 1 if $c->req->headers->header('X-Awesome');
$c->render(text => "You're not awesome enough.");
return undef;
};
# GET /admin/dashboard
get '/dashboard' => {text => 'Nothing to see here yet.'};
};
# GET /welcome
get '/welcome' => {text => 'Hi Bender.'};
app->start;
Formats
Formats can be automatically detected from file extensions like
".html", they are used to find the right template and generate the
correct "Content-Type" header. Use a restrictive placeholder to declare
the possible values.
use Mojolicious::Lite -signatures;
# /detection.html
# /detection.txt
get '/detection' => [format => ['html', 'txt']] => sub ($c) {
$c->render(template => 'detected');
};
app->start;
__DATA__
@@ detected.html.ep
<!DOCTYPE html>
<html>
<head><title>Detected</title></head>
<body>HTML was detected.</body>
</html>
@@ detected.txt.ep
TXT was detected.
And just like with placeholders you can use a default value to make the
format optional.
use Mojolicious::Lite -signatures;
# /hello
# /hello.json
# /hello.txt
get '/hello' => [format => ['json', 'txt']] => {format => 'txt'} => sub ($c) {
return $c->render(json => {hello => 'world'}) if $c->stash('format') eq 'json';
$c->render(text => 'hello world');
};
app->start;
The default format is "html" and the renderer will fall back to when
necessary.
Content negotiation
For resources with different representations and that require truly
RESTful content negotiation you can also use "respond_to" in
Mojolicious::Plugin::DefaultHelpers.
use Mojolicious::Lite -signatures;
# /hello (Accept: application/json)
# /hello (Accept: application/xml)
# /hello.json
# /hello.xml
# /hello?_format=json
# /hello?_format=xml
get '/hello' => [format => ['json', 'xml']] => {format => undef} => sub ($c) {
$c->respond_to(
json => {json => {hello => 'world'}},
xml => {text => '<hello>world</hello>'},
any => {data => '', status => 204}
);
};
app->start;
MIME type mappings can be extended or changed easily with "types" in
Mojolicious.
app->types->type(rdf => 'application/rdf+xml');
Static files
Similar to templates, but with only a single file extension and
optional Base64 encoding, static files can be inlined in the "DATA"
section and are served automatically.
use Mojolicious::Lite;
app->start;
__DATA__
@@ something.js
alert('hello!');
@@ test.txt (base64)
dGVzdCAxMjMKbGFsYWxh
External static files are not limited to a single file extension and
will be served automatically from a "public" directory if it exists.
$ mkdir public
$ mv something.js public/something.js
$ mv mojolicious.tar.gz public/mojolicious.tar.gz
Both have a higher precedence than routes for "GET" and "HEAD"
requests. Content negotiation with "Range", "If-None-Match" and
"If-Modified-Since" headers is supported as well and can be tested very
easily with Mojolicious::Command::get.
$ ./myapp.pl get /something.js -v -H 'Range: bytes=2-4'
External templates
External templates will be searched by the renderer in a "templates"
directory if it exists.
$ mkdir -p templates/foo
$ echo 'Hello World!' > templates/foo/bar.html.ep
They have a higher precedence than templates in the "DATA" section.
use Mojolicious::Lite -signatures;
# Render template "templates/foo/bar.html.ep"
any '/external' => sub ($c) {
$c->render(template => 'foo/bar');
};
app->start;
Home
You can use "home" in Mojolicious to interact with the directory your
application considers its home. This is the directory it will search
for "public" and "templates" directories, but you can use it to store
all sorts of application specific data.
$ mkdir cache
$ echo 'Hello World!' > cache/hello.txt
There are many useful methods Mojo::Home inherits from Mojo::File, like
"child" in Mojo::File and "slurp" in Mojo::File, that will help you
keep your application portable across many different operating systems.
use Mojolicious::Lite -signatures;
# Load message into memory
my $hello = app->home->child('cache', 'hello.txt')->slurp;
# Display message
get '/' => sub ($c) {
$c->render(text => $hello);
};
You can also introspect your application from the command line with
Mojolicious::Command::eval.
$ ./myapp.pl eval -v 'app->home'
Conditions
Conditions such as "agent" and "host" from
Mojolicious::Plugin::HeaderCondition allow even more powerful route
constructs.
use Mojolicious::Lite -signatures;
# Firefox
get '/foo' => (agent => qr/Firefox/) => sub ($c) {
$c->render(text => 'Congratulations, you are using a cool browser.');
};
# Internet Explorer
get '/foo' => (agent => qr/Internet Explorer/) => sub ($c) {
$c->render(text => 'Dude, you really need to upgrade to Firefox.');
};
# http://mojolicious.org/bar
get '/bar' => (host => 'mojolicious.org') => sub ($c) {
$c->render(text => 'Hello Mojolicious.');
};
app->start;
Sessions
Cookie-based sessions just work out of the box, as soon as you start
using them through the helper "session" in
Mojolicious::Plugin::DefaultHelpers. Just be aware that all session
data gets serialized with Mojo::JSON and stored client-side, with a
cryptographic signature to prevent tampering.
use Mojolicious::Lite -signatures;
# Access session data in action and template
get '/counter' => sub ($c) {
$c->session->{counter}++;
};
app->start;
__DATA__
@@ counter.html.ep
Counter: <%= session 'counter' %>
Note that you should use custom "secrets" in Mojolicious to make signed
cookies really tamper resistant.
app->secrets(['My secret passphrase here']);
File uploads
All files uploaded via "multipart/form-data" request are automatically
available as Mojo::Upload objects from "param" in
Mojolicious::Controller. And you don't have to worry about memory
usage, because all files above 250KiB will be automatically streamed
into a temporary file. To build HTML forms more efficiently, you can
also use tag helpers like "form_for" in
Mojolicious::Plugin::TagHelpers.
use Mojolicious::Lite -signatures;
# Upload form in DATA section
get '/' => 'form';
# Multipart upload handler
post '/upload' => sub ($c) {
# Check file size
return $c->render(text => 'File is too big.', status => 200) if $c->req->is_limit_exceeded;
# Process uploaded file
return $c->redirect_to('form') unless my $example = $c->param('example');
my $size = $example->size;
my $name = $example->filename;
$c->render(text => "Thanks for uploading $size byte file $name.");
};
app->start;
__DATA__
@@ form.html.ep
<!DOCTYPE html>
<html>
<head><title>Upload</title></head>
<body>
%= form_for upload => (enctype => 'multipart/form-data') => begin
%= file_field 'example'
%= submit_button 'Upload'
% end
</body>
</html>
To protect you from excessively large files there is also a limit of
16MiB by default, which you can tweak with the attribute
"max_request_size" in Mojolicious.
# Increase limit to 1GiB
app->max_request_size(1073741824);
User agent
With Mojo::UserAgent, which is available through the helper "ua" in
Mojolicious::Plugin::DefaultHelpers, there's a full featured HTTP and
WebSocket user agent built right in. Especially in combination with
Mojo::JSON and Mojo::DOM this can be a very powerful tool.
use Mojolicious::Lite -signatures;
# Blocking
get '/headers' => sub ($c) {
my $url = $c->param('url') || 'https://mojolicious.org';
my $dom = $c->ua->get($url)->result->dom;
$c->render(json => $dom->find('h1, h2, h3')->map('text')->to_array);
};
# Non-blocking
get '/title' => sub ($c) {
$c->ua->get('mojolicious.org' => sub ($ua, $tx) {
$c->render(data => $tx->result->dom->at('title')->text);
});
};
# Concurrent non-blocking
get '/titles' => sub ($c) {
my $mojo = $c->ua->get_p('https://mojolicious.org');
my $cpan = $c->ua->get_p('https://metacpan.org');
Mojo::Promise->all($mojo, $cpan)->then(sub ($mojo, $cpan) {
$c->render(json => {
mojo => $mojo->[0]->result->dom->at('title')->text,
cpan => $cpan->[0]->result->dom->at('title')->text
});
})->wait;
};
app->start;
For more information about the user agent see also "USER AGENT" in
Mojolicious::Guides::Cookbook.
WebSockets
WebSocket applications have never been this simple before. Just receive
messages by subscribing to events such as "json" in
Mojo::Transaction::WebSocket with "on" in Mojolicious::Controller and
return them with "send" in Mojolicious::Controller.
use Mojolicious::Lite -signatures;
websocket '/echo' => sub ($c) {
$c->on(json => sub ($c, $hash) {
$hash->{msg} = "echo: $hash->{msg}";
$c->send({json => $hash});
});
};
get '/' => 'index';
app->start;
__DATA__
@@ index.html.ep
<!DOCTYPE html>
<html>
<head>
<title>Echo</title>
<script>
const ws = new WebSocket('<%= url_for('echo')->to_abs %>');
ws.onmessage = function (event) {
document.body.innerHTML += JSON.parse(event.data).msg;
};
ws.onopen = function (event) {
ws.send(JSON.stringify({msg: 'I ♥ Mojolicious!'}));
};
</script>
</head>
</html>
For more information about real-time web features see also "REAL-TIME
WEB" in Mojolicious::Guides::Cookbook.
Mode
You can use the Mojo::Log object from "log" in Mojolicious to portably
collect debug messages and automatically disable them later in a
production setup by changing the Mojolicious operating mode, which can
also be retrieved from the attribute "mode" in Mojolicious.
use Mojolicious::Lite -signatures;
# Prepare mode specific message during startup
my $msg = app->mode eq 'development' ? 'Development!' : 'Something else!';
get '/' => sub ($c) {
$c->app->log->debug('Rendering mode specific message');
$c->render(text => $msg);
};
app->log->debug('Starting application');
app->start;
The default operating mode will usually be "development" and can be
changed with command line options or the "MOJO_MODE" and "PLACK_ENV"
environment variables. A mode other than "development" will raise the
log level from "trace" to "info". All messages will be written to
"STDERR" by default.
$ ./myapp.pl daemon -m production
Mode changes also affect a few other aspects of the framework, such as
the built-in "exception" and "not_found" pages. Once you switch modes
from "development" to "production", no sensitive information will be
revealed on those pages anymore.
Testing
Testing your application is as easy as creating a "t" directory and
filling it with normal Perl tests like "t/basic.t", which can be a lot
of fun thanks to Test::Mojo.
use Test::More;
use Mojo::File qw(curfile);
use Test::Mojo;
# Portably point to "../myapp.pl"
my $script = curfile->dirname->sibling('myapp.pl');
my $t = Test::Mojo->new($script);
$t->get_ok('/')->status_is(200)->content_like(qr/Funky/);
done_testing();
Just run your tests with prove.
$ prove -l -v
$ prove -l -v t/basic.t
MORE
You can continue with Mojolicious::Guides now or take a look at the
Mojolicious wiki <https://github.com/mojolicious/mojo/wiki>, which
contains a lot more documentation and examples by many different
authors.
SUPPORT
If you have any questions the documentation might not yet answer, don't
hesitate to ask in the Forum <https://forum.mojolicious.org>, on Matrix
<https://matrix.to/#/#mojo:matrix.org>, or IRC
<https://web.libera.chat/#mojo>.
perl v5.36.0 2022-12-22Mojolicious::Guides::Tutorial(3pm)
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