NAME

Mojolicious::Plugin::OpenAPI::Guides::Swagger2 - Swagger2 back compat guide

OVERVIEW

This guide is useful if your application is already using Mojolicious::Plugin::Swagger2.

The old plugin used to pass on $args and $cb to the action. This can be emulated using an around_action hook. The "SYNOPSIS" below contains example code that you can use to make your old controllers and actions work with Mojolicious::Plugin::OpenAPI.

SYNOPSIS

  package MyApp;
  use Mojo::Base "Mojolicious";

  sub startup {
    my $self = shift;

    # Load your specification
    $self->plugin("OpenAPI" => {url => $app->home->rel_file("myapi.json")});

    $self->hook(around_action => sub {
      my ($next, $c, $action, $last) = @_;

      # Do not call the action with ($args, $cb) unless it is an
      # OpenAPI endpoint.
      return $next->() unless $last;
      return $next->() unless $c->openapi->spec;

      # Render error document unless the input is valid
      return unless $c->openapi->valid_input;

      my $cb = sub {
        my ($c, $data, $code) = @_;
        $c->render(openapi => $data, status => $code);
      };

      # Call the action with ($args, $cb)
      # NOTE! $c->validation->output will be removed in the future
      return $c->$action($c->validation->output, $cb);
    });
  }

MOVING FORWARD

Note that the around_action hook above does not prevent you from writing new actions using the standard Mojolicious::Plugin::OpenAPI API. In the new actions, you can simply drop using $args and $cb and it will work as expected as well.

SEE ALSO

https://github.com/jhthorsen/mojolicious-plugin-openapi/blob/master/t/swagger2.t

Mojolicious::Plugin::OpenAPI.