Mojolicious::Lite(3)

NAME
Mojolicious::Lite - Micro real-time web framework

SYNOPSIS
  # Automatically enables "strict", "warnings", "utf8" and Perl 5.16 features
  use Mojolicious::Lite -signatures;

  # Route with placeholder
  get '/:foo' => sub ($c) {
    my $foo = $c->param('foo');
    $c->render(text => "Hello from $foo.");
  };

  # Start the Mojolicious command system
  app->start;

DESCRIPTION
Mojolicious::Lite is a tiny domain specific language built around Mojolicious, made up of only about a dozen Perl functions.

On Perl 5.20+ you can also use a "-signatures" flag to enable support for subroutine signatures.

  use Mojolicious::Lite -signatures;

  get '/:foo' => sub ($c) {
    my $foo = $c->param('foo');
    $c->render(text => "Hello from $foo.");
  };

  app->start;

See Mojolicious::Guides::Tutorial for more!

GROWING
While Mojolicious::Guides::Growing will give you a detailed introduction to growing a Mojolicious::Lite prototype into a well-structured Mojolicious application, here we have collected a few snippets that illustrate very well just how similar both of them are.

  Routes
The functions "get", "post" and friends all have equivalent methods.

  # Mojolicious::Lite
  get '/foo' => sub ($c) {
    $c->render(text => 'Hello World!');
  };

  # Mojolicious
  sub startup ($self) {

    my $routes = $self->routes;
    $routes->get('/foo' => sub ($c) {
      $c->render(text => 'Hello World!');
    });
  }

  Application
The application object you can access with the function "app" is the first argument passed to the "startup" method.

  # Mojolicious::Lite
  app->max_request_size(16777216);

  # Mojolicious
  sub startup ($self) {
    $self->max_request_size(16777216);
  }

  Plugins
Instead of the "plugin" function you just use the method "plugin" in Mojolicious.

  # Mojolicious::Lite
  plugin 'Config';

  # Mojolicious
  sub startup ($self) {
    $self->plugin('Config');
  }

  Helpers
Similar to plugins, instead of the "helper" function you just use the method "helper" in Mojolicious.

  # Mojolicious::Lite
  helper two => sub ($c) {
    return 1 + 1;
  };

  # Mojolicious
  sub startup ($self) {
    $self->helper(two => sub ($c) {
      return 1 + 1;
    });
  }

  Under
Instead of sequential function calls, we can use methods to build a tree with nested routes, that much better illustrates how routes work internally.

  # Mojolicious::Lite
  under '/foo';
  get '/bar' => sub ($c) {...};

  # Mojolicious
  sub startup ($self) {

    my $routes = $self->routes;
    my $foo = $routes->under('/foo');
    $foo->get('/bar' => sub ($c) {...});
  }

FUNCTIONS
Mojolicious::Lite implements the following functions, which are automatically exported.

  any
  my $route = any '/:foo' => sub ($c) {...};
  my $route = any '/:foo' => sub ($c) {...} => 'name';
  my $route = any '/:foo' => {foo => 'bar'} => sub ($c) {...};
  my $route = any '/:foo' => [foo => qr/\w+/] => sub ($c) {...};
  my $route = any ['GET', 'POST'] => '/:foo' => sub ($c) {...};
  my $route = any ['GET', 'POST'] => '/:foo' => [foo => qr/\w+/] => sub ($c) {...};
  my $route = any ['GET', 'POST'] => '/:foo' => (agent => qr/Firefox/) => sub ($c) {...};

Generate route with "any" in Mojolicious::Routes::Route, matching any of the listed HTTP request methods or all. See Mojolicious::Guides::Tutorial and Mojolicious::Guides::Routing for more information.

  app
  my $app = app;

Returns the Mojolicious::Lite application object, which is a subclass of Mojolicious.

  # Use all the available attributes and methods
  app->log->level('error');
  app->defaults(foo => 'bar');

  del
  my $route = del '/:foo' => sub ($c) {...};
  my $route = del '/:foo' => sub ($c) {...} => 'name';
  my $route = del '/:foo' => {foo => 'bar'} => sub ($c) {...};
  my $route = del '/:foo' => [foo => qr/\w+/] => sub ($c) {...};
  my $route = del '/:foo' => (agent => qr/Firefox/) => sub ($c) {...};

Generate route with "delete" in Mojolicious::Routes::Route, matching only "DELETE" requests. See Mojolicious::Guides::Tutorial and Mojolicious::Guides::Routing for more information.

  get
  my $route = get '/:foo' => sub ($c) {...};
  my $route = get '/:foo' => sub ($c) {...} => 'name';
  my $route = get '/:foo' => {foo => 'bar'} => sub ($c) {...};
  my $route = get '/:foo' => [foo => qr/\w+/] => sub ($c) {...};
  my $route = get '/:foo' => (agent => qr/Firefox/) => sub ($c) {...};

Generate route with "get" in Mojolicious::Routes::Route, matching only "GET" requests. See Mojolicious::Guides::Tutorial and Mojolicious::Guides::Routing for more information.

  group
  group {...};

Start a new route group.

  helper
  helper foo => sub ($c, @args) {...};

Add a new helper with "helper" in Mojolicious.

  hook
  hook after_dispatch => sub ($c) {...};

Share code with "hook" in Mojolicious.

  options
  my $route = options '/:foo' => sub ($c) {...};
  my $route = options '/:foo' => sub ($c) {...} => 'name';
  my $route = options '/:foo' => {foo => 'bar'} => sub ($c) {...};
  my $route = options '/:foo' => [foo => qr/\w+/] => sub ($c) {...};
  my $route = options '/:foo' => (agent => qr/Firefox/) => sub ($c) {...};

Generate route with "options" in Mojolicious::Routes::Route, matching only "OPTIONS" requests. See Mojolicious::Guides::Tutorial and Mojolicious::Guides::Routing for more information.

  patch
  my $route = patch '/:foo' => sub ($c) {...};
  my $route = patch '/:foo' => sub ($c) {...} => 'name';
  my $route = patch '/:foo' => {foo => 'bar'} => sub ($c) {...};
  my $route = patch '/:foo' => [foo => qr/\w+/] => sub ($c) {...};
  my $route = patch '/:foo' => (agent => qr/Firefox/) => sub ($c) {...};

Generate route with "patch" in Mojolicious::Routes::Route, matching only "PATCH" requests. See Mojolicious::Guides::Tutorial and Mojolicious::Guides::Routing for more information.

  plugin
  plugin SomePlugin => {foo => 23};

Load a plugin with "plugin" in Mojolicious.

  post
  my $route = post '/:foo' => sub ($c) {...};
  my $route = post '/:foo' => sub ($c) {...} => 'name';
  my $route = post '/:foo' => {foo => 'bar'} => sub ($c) {...};
  my $route = post '/:foo' => [foo => qr/\w+/] => sub ($c) {...};
  my $route = post '/:foo' => (agent => qr/Firefox/) => sub ($c) {...};

Generate route with "post" in Mojolicious::Routes::Route, matching only "POST" requests. See Mojolicious::Guides::Tutorial and Mojolicious::Guides::Routing for more information.

  put
  my $route = put '/:foo' => sub ($c) {...};
  my $route = put '/:foo' => sub ($c) {...} => 'name';
  my $route = put '/:foo' => {foo => 'bar'} => sub ($c) {...};
  my $route = put '/:foo' => [foo => qr/\w+/] => sub ($c) {...};
  my $route = put '/:foo' => (agent => qr/Firefox/) => sub ($c) {...};

Generate route with "put" in Mojolicious::Routes::Route, matching only "PUT" requests. See Mojolicious::Guides::Tutorial and Mojolicious::Guides::Routing for more information.

  query
  my $route = query '/:foo' => sub ($c) {...};
  my $route = query '/:foo' => sub ($c) {...} => 'name';
  my $route = query '/:foo' => {foo => 'bar'} => sub ($c) {...};
  my $route = query '/:foo' => [foo => qr/\w+/] => sub ($c) {...};
  my $route = query '/:foo' => (agent => qr/Firefox/) => sub ($c) {...};

Generate route with "query" in Mojolicious::Routes::Route, matching only "QUERY" requests. See Mojolicious::Guides::Tutorial and Mojolicious::Guides::Routing for more information.

  under
  my $route = under sub ($c) {...};
  my $route = under '/:foo' => sub ($c) {...};
  my $route = under '/:foo' => {foo => 'bar'};
  my $route = under '/:foo' => [foo => qr/\w+/];
  my $route = under '/:foo' => (agent => qr/Firefox/);
  my $route = under [format => ['json', 'yaml']];

Generate nested route with "under" in Mojolicious::Routes::Route, to which all following routes are automatically appended. See Mojolicious::Guides::Tutorial and Mojolicious::Guides::Routing for more information.

  websocket
  my $route = websocket '/:foo' => sub ($c) {...};
  my $route = websocket '/:foo' => sub ($c) {...} => 'name';
  my $route = websocket '/:foo' => {foo => 'bar'} => sub ($c) {...};
  my $route = websocket '/:foo' => [foo => qr/\w+/] => sub ($c) {...};
  my $route = websocket '/:foo' => (agent => qr/Firefox/) => sub ($c) {...};

Generate route with "websocket" in Mojolicious::Routes::Route, matching only WebSocket handshakes. See Mojolicious::Guides::Tutorial and Mojolicious::Guides::Routing for more information.

ATTRIBUTES
Mojolicious::Lite inherits all attributes from Mojolicious.

METHODS
Mojolicious::Lite inherits all methods from Mojolicious.

SEE ALSO
Mojolicious, Mojolicious::Guides, <https://mojolicious.org>.