Dancer

The easiest way to write a webapp with Perl

ABOUT

This project is inspired by Ruby's Sinatra framework: a framework for building web applications with minimal effort, allowing a simple webapp to be created with very few lines of code, but allowing the flexibility to scale to much more complex applications. Dancer supports plugins to add various extra functionality you may want, whilst keeping the core streamlined.

NEWS

• Dancer's development moves very quickly, to stay tuned follow PerlDancer on Twitter: http://twitter.com/PerlDancer
• See also Sukria's blog: http://www.sukria.net/fr/archives/tag/dancer/
• See also the project on Github for the latest changes: http://github.com/PerlDancer/Dancer
• To keep even more up to date and talk to the developers, join us in #dancer on irc.perl.org (if you don't have an IRC client, use http://www.perldancer.org/irc for easy access).

EXAMPLE

To create a new Dancer application, use the helper script dancer provided with this distribution:

$ dancer -a MyWeb::App
+ MyWeb-App/bin
+ MyWeb-App/bin/app.pl
+ MyWeb-App/config.yml
+ MyWeb-App/environments
[..]

You then have a new Dancer application in MyWeb::App which is already a functioning Hello World application, ready for you to work upon.

Here is an example of a webapp built with Dancer:

# MyWeb-App/bin/app.pl
#!/usr/bin/perl

use Dancer;

get '/' => sub {
    "Hello There!"
};

get '/hello/:name' => sub {
    "Hey ".params->{name}.", how are you?";
};

post '/new' => sub {
    "creating new entry: ".params->{name};
};

Dancer->dance;

When running this script, a webserver is running and ready to serve:

$ perl ./bin/app.pl
>> Listening on 0.0.0.0:3000
== Entering the development dance floor ...

Then it's possible to access any route defined in the script:

$ curl http://localhost:3000/
Hello There!

For a more in-depth example, see examples/dancr

DEPENDENCIES

Dancer depends on the following modules

• HTTP::Server::Simple::PSGI
• HTTP::Body
• Exception::Class
• MIME::Types
• URI

Optional modules may be needed if you want to use some features (but are not required for a basic usage).

Dependency-checks for additional features are performed at runtime.

Most common modules you may want are:

• Template (for Template::Toolkit support)
• YAML (for configuration files)
• Plack (if you want to deploy your application with PSGI)

PRODUCTION MATTERS

This is a work in progress.

Dancer supports PSGI/Plack, to run a Dancer app with PSGI/Plack just bootstrap your application with the helper script dancer like the following:

$ dancer -a MyWeb::App

You'll find a file in there called app.psgi, use this file to configure your PSGI environment, as explained in the revelant documentation of your PSGI server.

For instance, with plackup, just do the following:

$ plackup -a app.psgi

WEBSITE

For more details about the project, checkout the official website: http://perldancer.org/ or checkout the documentation at http://search.cpan.org/dist/Dancer/

See also the Github project page: http://github.com/PerlDancer/Dancer for the latest changes.

REPORTING BUGS

Bug reports are appreciated and will receive prompt attention - the preferred method is to raise them using Github's basic issue tracking system:

http://github.com/PerlDancer/Dancer/issues

CONTACT

You can reach the development team on IRC: irc://irc.perl.org/#dancer or http://www.perldancer.org/irc for a web-based IRC client.