Ubuntu Manpage: Mojolicious::Plugin::OpenAPI - OpenAPI / Swagger plugin for Mojolicious

Provided by: libmojolicious-plugin-openapi-perl_2.21-1_all

NAME

       Mojolicious::Plugin::OpenAPI - OpenAPI / Swagger plugin for Mojolicious

SYNOPSIS

         use Mojolicious::Lite;

         # Will be moved under "basePath", resulting in "POST /api/echo"
         post "/echo" => sub {

           # Validate input request or return an error document
           my $c = shift->openapi->valid_input or return;

           # Generate some data
           my $data = {body => $c->validation->param("body")};

           # Validate the output response and render it to the user agent
           # using a custom "openapi" handler.
           $c->render(openapi => $data);
         }, "echo";

         # Load specification and start web server
         plugin OpenAPI => {url => "data:///spec.json"};
         app->start;

         __DATA__
         @@ spec.json
         {
           "swagger" : "2.0",
           "info" : { "version": "0.8", "title" : "Echo Service" },
           "schemes" : [ "http" ],
           "basePath" : "/api",
           "paths" : {
             "/echo" : {
               "post" : {
                 "x-mojo-name" : "echo",
                 "parameters" : [
                   { "in": "body", "name": "body", "schema": { "type" : "object" } }
                 ],
                 "responses" : {
                   "200": {
                     "description": "Echo response",
                     "schema": { "type": "object" }
                   }
                 }
               }
             }
           }
         }

       See Mojolicious::Plugin::OpenAPI::Guides::Tutorial for a tutorial on how to write a "full"
       app with application class and controllers.

DESCRIPTION

       Mojolicious::Plugin::OpenAPI is Mojolicious::Plugin that add routes and input/output
       validation to your Mojolicious application based on a OpenAPI (Swagger) specification.

       Have a look at the "SEE ALSO" for references to more documentation, or jump right to the
       tutorial.

       Currently v2 is very well supported, while v3 should be considered EXPERIMENTAL.

       Please report in issues <https://github.com/jhthorsen/json-validator/issues> or open pull
       requests to enhance the 3.0 support.

HELPERS

   openapi.spec
         $hash = $c->openapi->spec($json_pointer)
         $hash = $c->openapi->spec("/info/title")
         $hash = $c->openapi->spec;

       Returns the OpenAPI specification. A JSON Pointer can be used to extract a given section
       of the specification. The default value of $json_pointer will be relative to the current
       operation. Example:

         {
           "paths": {
             "/pets": {
               "get": {
                 // This datastructure is returned by default
               }
             }
           }
         }

   openapi.validate
         @errors = $c->openapi->validate;

       Used to validate a request. @errors holds a list of JSON::Validator::Error objects or
       empty list on valid input.

       Note that this helper is only for customization. You probably want "openapi.valid_input"
       in most cases.

       Validated input parameters will be copied to "Mojolicious::Controller/validation", which
       again can be extracted by the "name" in the parameters list from the spec. Example:

         # specification:
         "parameters": [{"in": "body", "name": "whatever", "schema": {"type": "object"}}],

         # controller
         my $body = $c->validation->param("whatever");

   openapi.valid_input
         $c = $c->openapi->valid_input;

       Returns the Mojolicious::Controller object if the input is valid or automatically render
       an error document if not and return false. See "SYNOPSIS" for example usage.

HOOKS

       Mojolicious::Plugin::OpenAPI will emit the following hooks on the application object.

   openapi_routes_added
       Emitted after all routes have been added by this plugin.

         $app->hook(openapi_routes_added => sub {
           my ($openapi, $routes) = @_;

           for my $route (@$routes) {
             ...
           }
         });

       This hook is EXPERIMENTAL and subject for change.

RENDERER

       This plugin register a new handler called "openapi". The special thing about this handler
       is that it will validate the data before sending it back to the user agent. Examples:

         $c->render(json => {foo => 123});    # without validation
         $c->render(openapi => {foo => 123}); # with validation

       This handler will also use "renderer" to format the output data. The code below shows the
       default "renderer" which generates JSON data:

         $app->plugin(
           OpenAPI => {
             renderer => sub {
               my ($c, $data) = @_;
               return Mojo::JSON::encode_json($data);
             }
           }
         );

ATTRIBUTES

   route
         $route = $openapi->route;

       The parent Mojolicious::Routes::Route object for all the OpenAPI endpoints.

   validator
         $jv = $openapi->validator;

       Holds a JSON::Validator::OpenAPI::Mojolicious object.

METHODS

   register
         $openapi = $openapi->register($app, \%config);
         $openapi = $app->plugin(OpenAPI => \%config);

       Loads the OpenAPI specification, validates it and add routes to $app. It will also set up
       "HELPERS" and adds a before_render hook for auto-rendering of error documents. The return
       value is the object instance, which allow you to access the "ATTRIBUTES" after you load
       the plugin.

       %config can have:

       allow_invalid_ref

       The OpenAPI specification does not allow "$ref" at every level, but setting this flag to a
       true value will ignore the $ref check.

       Note that setting this attribute is discourage.

       coerce

       See "coerce" in JSON::Validator for possible values that "coerce" can take.

       Default: booleans,numbers,strings

       The default value will include "defaults" in the future, once that is stable enough.

       default_response_codes

       A list of response codes that will get a "$ref" pointing to
       "#/definitions/DefaultResponse", unless already defined in the spec.  "DefaultResponse"
       can be altered by setting "default_response_name".

       The default response code list is the following:

         400 | Bad Request           | Invalid input from client / user agent
         401 | Unauthorized          | Used by Mojolicious::Plugin::OpenAPI::Security
         404 | Not Found             | Route is not defined
         500 | Internal Server Error | Internal error or failed output validation
         501 | Not Implemented       | Route exists, but the action is not implemented

       Note that more default codes might be added in the future if required by the plugin.

       default_response_name

       The name of the "definition" in the spec that will be used for "default_response_codes".
       The default value is "DefaultResponse". See "Default response schema" in
       Mojolicious::Plugin::OpenAPI::Guides::Tutorial for more details.

       log_level

       "log_level" is used when logging invalid request/response error messages.

       Default: "warn".

       plugins

       A list of OpenAPI classes to extend the functionality. Default is:
       Mojolicious::Plugin::OpenAPI::Cors, Mojolicious::Plugin::OpenAPI::SpecRenderer and
       Mojolicious::Plugin::OpenAPI::Security.

         $app->plugin(OpenAPI => {plugins => [qw(+Cors +SpecRenderer +Security)]});

       You can load your own plugins by doing:

         $app->plugin(OpenAPI => {plugins => [qw(+SpecRenderer My::Cool::OpenAPI::Plugin)]});

       renderer

       See "RENDERER".

       route

       "route" can be specified in case you want to have a protected API. Example:

         $app->plugin(OpenAPI => {
           route => $app->routes->under("/api")->to("user#auth"),
           url   => $app->home->rel_file("cool.api"),
         });

       schema

       Can be used to set a different schema, than the default OpenAPI 2.0 spec.  Example values:
       "http://swagger.io/v2/schema.json", "v2" or "v3".

       spec_route_name

       Name of the route that handles the "basePath" part of the specification and serves the
       specification. Defaults to "x-mojo-name" in the specification at the top level.

       url

       See "schema" in JSON::Validator for the different "url" formats that is accepted.

       "spec" is an alias for "url", which might make more sense if your specification is written
       in perl, instead of JSON or YAML.

       version_from_class

       Can be used to overridden "/info/version" in the API specification, from the return value
       from the "VERSION()" method in "version_from_class".

       This will only have an effect if "version" is "0".

       Defaults to the current $app.

AUTHORS

       Henrik Andersen

       Ilya Rassadin

       Jan Henning Thorsen

       Joel Berger

COPYRIGHT AND LICENSE

       Copyright (C) Jan Henning Thorsen

       This program is free software, you can redistribute it and/or modify it under the terms of
       the Artistic License version 2.0.