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Author image Jan Henning Thorsen
and 3 contributors


Mojolicious::Plugin::OpenAPI::Security - OpenAPI plugin for securing your API


This plugin will allow you to use the security features provided by the OpenAPI specification.

Note that this is currently EXPERIMENTAL! Please let me know if you have any feedback. See https://github.com/jhthorsen/mojolicious-plugin-openapi/pull/40 for a complete discussion.



Here is an example specification that use securityDefinitions and security from the OpenAPI spec:

    "swagger": "2.0",
    "info": { "version": "0.8", "title": "Super secure" },
    "schemes": [ "https" ],
    "basePath": "/api",
    "securityDefinitions": {
      "dummy": {
        "type": "apiKey",
        "name": "Authorization",
        "in": "header",
        "description": "dummy"
    "paths": {
      "/protected": {
        "post": {
          "x-mojo-to": "super#secret_resource",
          "security": [{"dummy": []}],
          "parameters": [
            { "in": "body", "name": "body", "schema": { "type": "object" } }
          "responses": {
            "200": {"description": "Echo response", "schema": { "type": "object" }},
            "401": {"description": "Sorry mate", "schema": { "type": "array" }}


The specification above can be dispatched to handlers inside your Mojolicious application. The do so, add the "security" key when loading the plugin, and reference the "securityDefinitions" name inside that to a callback. In this example, we have the "dummy" security handler:

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

  sub startup {
    my $app = shift;

    $app->plugin(OpenAPI => {
      url      => "data:///security.json",
      security => {
        dummy => sub {
          my ($c, $definition, $scopes, $cb) = @_;
          return $c->$cb() if $c->req->headers->authorization;
          return $c->$cb('Authorization header not present');


$c is a Mojolicious::Controller object. $definition is the security definition from /securityDefinitions. $scopes is the Oauth scopes, which in this case is just an empty array ref, but it will contain the value for "security" under the given HTTP method.

Call $cb with undef or no argument at all to indicate pass. Call $cb with a defined value (usually a string) to indicate that the check has failed. When none of the sets of security restrictions are satisfied, the standard OpenAPI structure is built using the values passed to the callbacks as the messages and rendered to the client with a status of 401.

Note that the callback must be called or the dispatch will hang.

See also "SYNOPSIS" in Mojolicious::Plugin::OpenAPI for example Mojolicious::Lite application.


Your controllers and actions are unchanged. The difference in behavior is that the action simply won't be called if you fail to pass the security tests.

Exempted routes

All of the routes created by the plugin are protected by the security definitions with the following exemptions. The base route that renders the spec/documentation is exempted. Additionally, when a route does not define its own OPTIONS handler a documentation endpoint is generated which is exempt as well.



Called by Mojolicious::Plugin::OpenAPI.