2022-06-11 09:56:29 +02:00

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Frequently Asked Questions (FAQ)
================================
Sharing parameter configuration
-------------------------------
Q: I use the same value in multiple endpoints. How can I avoid duplicating the descriptions?
A: You can configure ``schemas`` in the nelmio_api_doc configuration and then reference them:
.. code-block:: yaml
# config/nelmio_api_doc.yaml
nelmio_api_doc:
documentation:
components:
schemas:
NelmioImageList:
description: "Response for some queries"
type: object
properties:
total:
type: integer
example: 42
items:
type: array
items:
$ref: "#/components/schemas/ImageMetadata"
.. code-block:: php
// src/App/Controller/NelmioController.php
/**
* @OA\Response(
* response=200,
* description="List of image definitions",
* @OA\JsonContent(
* ref="#/components/schemas/NelmioImageList",
* )
*/
Optional Path Parameters
------------------------
Q: I have a controller with an optional path parameter. In swagger-ui, the parameter is required - can I make it
optional? The controller might look like this::
/**
* Get all user meta or metadata for a specific field.
*
* @Route("/{user}/meta/{metaName}",
* methods={"GET"},
* name="get_user_metadata"
* )
*
* @OA\Response(
* response=200,
* description="Json object with all user meta data or a json string with the value of the requested field"
* )
*/
public function getAction(string $user, string $metaName = null)
{
...
}
A: Optional path parameters are not supported by the OpenAPI specification. The solution to this is to define two
separate actions in your controller. For example::
/**
* Get all user meta data.
*
* @Route("/{user}/meta",
* methods={"GET"},
* name="get_user_metadata"
* )
*
* @OA\Response(
* response=200,
* description="Json hashmap with all user meta data",
* @OA\JsonContent(@OA\Schema(
* type="object",
* example={"foo": "bar", "hello": "world"}
* ))
* )
*/
public function cgetAction(string $user)
{
return $this->getAction($user, null);
}
/**
* Get user meta for a specific field.
*
* @Route("/{user}/meta/{metaName}",
* methods={"GET"},
* name="get_user_metadata_single"
* )
*
* @OA\Response(
* response=200,
* description="A json string with the value of the requested field",
* @OA\JsonContent(@OA\Schema(
* type="string"
* ))
* )
*/
public function getAction(string $user, string $metaName = null)
{
...
}
The first action is redundant for Symfony, but adds all the relevant documentation for the OpenAPI specification.
Asset files not loaded
----------------------
Q: How do I fix 404 or 406 HTTP status on NelmioApiDocBundle assets files (css, js, images)?
A: The assets normally are installed by composer if any command event (usually ``post-install-cmd`` or
``post-update-cmd``) triggers the ``ScriptHandler::installAssets`` script.
If you have not set up this script, you can manually execute this command:
.. code-block:: bash
$ php bin/console assets:install --symlink
Re-add Google Fonts
-------------------
Q: How can I change the font for the UI?
A: We removed the google fonts in 3.3 to avoid the external request for GDPR reasons. To change the font, you can :doc:`customize the template <customization>` to add this style information:
.. code-block:: twig
{# templates/bundles/NelmioApiDocBundle/SwaggerUi/index.html.twig #}
{#
To avoid a "reached nested level" error an exclamation mark `!` has to be added
See https://symfony.com/blog/new-in-symfony-3-4-improved-the-overriding-of-templates
#}
{% extends '@!NelmioApiDoc/SwaggerUi/index.html.twig' %}
{% block stylesheets %}
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Open+Sans:400,700|Source+Code+Pro:300,600|Titillium+Web:400,600,700">
{{ parent() }}
<style type="text/css" rel="stylesheet">
#formats {
font-family: Open Sans,sans-serif;
}
.swagger-ui .opblock-tag,
.swagger-ui .opblock .opblock-section-header label,
.swagger-ui .opblock .opblock-section-header h4,
.swagger-ui .opblock .opblock-summary-method,
.swagger-ui .tab li,
.swagger-ui .scheme-container .schemes>label,
.swagger-ui .loading-container .loading:after,
.swagger-ui .btn,
.swagger-ui .btn.cancel,
.swagger-ui select,
.swagger-ui label,
.swagger-ui .dialog-ux .modal-ux-content h4,
.swagger-ui .dialog-ux .modal-ux-header h3,
.swagger-ui section.models h4,
.swagger-ui section.models h5,
.swagger-ui .model-title,
.swagger-ui .parameter__name,
.swagger-ui .topbar a,
.swagger-ui .topbar .download-url-wrapper .download-url-button,
.swagger-ui .info .title small pre,
.swagger-ui .scopes h2,
.swagger-ui .errors-wrapper hgroup h4 {
font-family: Open Sans,sans-serif!important;
}
</style>
{% endblock stylesheets %}
Endpoints grouping
------------------
Q: Areas feature doesn't fit my needs. So how can I group similar endpoints of one or more controllers in a separate section in the documentation?
A: Use ``@OA\Tag`` annotation.
.. code-block:: php
/**
* Class BookmarkController
*
* @OA\Tag(name="Bookmarks")
*/
class BookmarkController extends AbstractFOSRestController implements ContextPresetInterface
{
// ...
}
Disable Default Section
-----------------------
Q: I don't want to render the "default" section, how do I do that?
A: Use ``disable_default_routes`` config in your area.
.. code-block:: yaml
nelmio_api_doc:
areas:
default:
disable_default_routes: true
Overriding a Form or Plain PHP Object Schema Type
-------------------------------------------------
Q: I'd like to define a PHP object or form with a type other any ``object``, how
do I do that?
A: By using the ``@OA\Schema`` annotation or attribute with a ``type`` or ``ref``.
Note, however, that a ``type="object"`` will still read all a models properties.
.. code-block:: php
<?php
use OpenApi\Annotations as OA;
use Nelmio\ApiDocBundle\Annotation\Model;
/**
* @OA\Schema(type="array", @OA\Items(ref=@Model(type=SomeEntity::class)))
*
* or define a `ref`:
* @OA\Schema(ref="#/components/schemas/SomeRef")
*/
class SomeCollection implements \IteratorAggregate
{
// ...
}