django-rest-framework/coreapi/from-documenting-your-api/index.html
2020-09-28 09:55:30 +00:00

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<h2 id="built-in-api-documentation"><a class="toclink" href="#built-in-api-documentation">Built-in API documentation</a></h2>
<p>The built-in API documentation includes:</p>
<ul>
<li>Documentation of API endpoints.</li>
<li>Automatically generated code samples for each of the available API client libraries.</li>
<li>Support for API interaction.</li>
</ul>
<h3 id="installation"><a class="toclink" href="#installation">Installation</a></h3>
<p>The <code>coreapi</code> library is required as a dependency for the API docs. Make sure
to install the latest version. The <code>Pygments</code> and <code>Markdown</code> libraries
are optional but recommended.</p>
<p>To install the API documentation, you'll need to include it in your project's URLconf:</p>
<pre><code>from rest_framework.documentation import include_docs_urls
urlpatterns = [
...
path('docs/', include_docs_urls(title='My API title'))
]
</code></pre>
<p>This will include two different views:</p>
<ul>
<li><code>/docs/</code> - The documentation page itself.</li>
<li><code>/docs/schema.js</code> - A JavaScript resource that exposes the API schema.</li>
</ul>
<hr />
<p><strong>Note</strong>: By default <code>include_docs_urls</code> configures the underlying <code>SchemaView</code> to generate <em>public</em> schemas.
This means that views will not be instantiated with a <code>request</code> instance. i.e. Inside the view <code>self.request</code> will be <code>None</code>.</p>
<p>To be compatible with this behaviour, methods (such as <code>get_serializer</code> or <code>get_serializer_class</code> etc.) which inspect <code>self.request</code> or, particularly, <code>self.request.user</code> may need to be adjusted to handle this case.</p>
<p>You may ensure views are given a <code>request</code> instance by calling <code>include_docs_urls</code> with <code>public=False</code>:</p>
<pre><code>from rest_framework.documentation import include_docs_urls
urlpatterns = [
...
# Generate schema with valid `request` instance:
path('docs/', include_docs_urls(title='My API title', public=False))
]
</code></pre>
<hr />
<h3 id="documenting-your-views"><a class="toclink" href="#documenting-your-views">Documenting your views</a></h3>
<p>You can document your views by including docstrings that describe each of the available actions.
For example:</p>
<pre><code>class UserList(generics.ListAPIView):
"""
Return a list of all the existing users.
"""
</code></pre>
<p>If a view supports multiple methods, you should split your documentation using <code>method:</code> style delimiters.</p>
<pre><code>class UserList(generics.ListCreateAPIView):
"""
get:
Return a list of all the existing users.
post:
Create a new user instance.
"""
</code></pre>
<p>When using viewsets, you should use the relevant action names as delimiters.</p>
<pre><code>class UserViewSet(viewsets.ModelViewSet):
"""
retrieve:
Return the given user.
list:
Return a list of all the existing users.
create:
Create a new user instance.
"""
</code></pre>
<p>Custom actions on viewsets can also be documented in a similar way using the method names
as delimiters or by attaching the documentation to action mapping methods.</p>
<pre><code>class UserViewSet(viewsets.ModelViewset):
...
@action(detail=False, methods=['get', 'post'])
def some_action(self, request, *args, **kwargs):
"""
get:
A description of the get method on the custom action.
post:
A description of the post method on the custom action.
"""
@some_action.mapping.put
def put_some_action():
"""
A description of the put method on the custom action.
"""
</code></pre>
<h3 id="documentation-api-reference"><a class="toclink" href="#documentation-api-reference"><code>documentation</code> API Reference</a></h3>
<p>The <code>rest_framework.documentation</code> module provides three helper functions to help configure the interactive API documentation, <code>include_docs_urls</code> (usage shown above), <code>get_docs_view</code> and <code>get_schemajs_view</code>.</p>
<p><code>include_docs_urls</code> employs <code>get_docs_view</code> and <code>get_schemajs_view</code> to generate the url patterns for the documentation page and JavaScript resource that exposes the API schema respectively. They expose the following options for customisation. (<code>get_docs_view</code> and <code>get_schemajs_view</code> ultimately call <code>rest_frameworks.schemas.get_schema_view()</code>, see the Schemas docs for more options there.)</p>
<h4 id="include_docs_urls"><a class="toclink" href="#include_docs_urls"><code>include_docs_urls</code></a></h4>
<ul>
<li><code>title</code>: Default <code>None</code>. May be used to provide a descriptive title for the schema definition.</li>
<li><code>description</code>: Default <code>None</code>. May be used to provide a description for the schema definition.</li>
<li><code>schema_url</code>: Default <code>None</code>. May be used to pass a canonical base URL for the schema.</li>
<li><code>public</code>: Default <code>True</code>. Should the schema be considered <em>public</em>? If <code>True</code> schema is generated without a <code>request</code> instance being passed to views.</li>
<li><code>patterns</code>: Default <code>None</code>. A list of URLs to inspect when generating the schema. If <code>None</code> project's URL conf will be used.</li>
<li><code>generator_class</code>: Default <code>rest_framework.schemas.SchemaGenerator</code>. May be used to specify a <code>SchemaGenerator</code> subclass to be passed to the <code>SchemaView</code>.</li>
<li><code>authentication_classes</code>: Default <code>api_settings.DEFAULT_AUTHENTICATION_CLASSES</code>. May be used to pass custom authentication classes to the <code>SchemaView</code>.</li>
<li><code>permission_classes</code>: Default <code>api_settings.DEFAULT_PERMISSION_CLASSES</code> May be used to pass custom permission classes to the <code>SchemaView</code>.</li>
<li><code>renderer_classes</code>: Default <code>None</code>. May be used to pass custom renderer classes to the <code>SchemaView</code>.</li>
</ul>
<h4 id="get_docs_view"><a class="toclink" href="#get_docs_view"><code>get_docs_view</code></a></h4>
<ul>
<li><code>title</code>: Default <code>None</code>. May be used to provide a descriptive title for the schema definition.</li>
<li><code>description</code>: Default <code>None</code>. May be used to provide a description for the schema definition.</li>
<li><code>schema_url</code>: Default <code>None</code>. May be used to pass a canonical base URL for the schema.</li>
<li><code>public</code>: Default <code>True</code>. If <code>True</code> schema is generated without a <code>request</code> instance being passed to views.</li>
<li><code>patterns</code>: Default <code>None</code>. A list of URLs to inspect when generating the schema. If <code>None</code> project's URL conf will be used.</li>
<li><code>generator_class</code>: Default <code>rest_framework.schemas.SchemaGenerator</code>. May be used to specify a <code>SchemaGenerator</code> subclass to be passed to the <code>SchemaView</code>.</li>
<li><code>authentication_classes</code>: Default <code>api_settings.DEFAULT_AUTHENTICATION_CLASSES</code>. May be used to pass custom authentication classes to the <code>SchemaView</code>.</li>
<li><code>permission_classes</code>: Default <code>api_settings.DEFAULT_PERMISSION_CLASSES</code>. May be used to pass custom permission classes to the <code>SchemaView</code>.</li>
<li><code>renderer_classes</code>: Default <code>None</code>. May be used to pass custom renderer classes to the <code>SchemaView</code>. If <code>None</code> the <code>SchemaView</code> will be configured with <code>DocumentationRenderer</code> and <code>CoreJSONRenderer</code> renderers, corresponding to the (default) <code>html</code> and <code>corejson</code> formats.</li>
</ul>
<h4 id="get_schemajs_view"><a class="toclink" href="#get_schemajs_view"><code>get_schemajs_view</code></a></h4>
<ul>
<li><code>title</code>: Default <code>None</code>. May be used to provide a descriptive title for the schema definition.</li>
<li><code>description</code>: Default <code>None</code>. May be used to provide a description for the schema definition.</li>
<li><code>schema_url</code>: Default <code>None</code>. May be used to pass a canonical base URL for the schema.</li>
<li><code>public</code>: Default <code>True</code>. If <code>True</code> schema is generated without a <code>request</code> instance being passed to views.</li>
<li><code>patterns</code>: Default <code>None</code>. A list of URLs to inspect when generating the schema. If <code>None</code> project's URL conf will be used.</li>
<li><code>generator_class</code>: Default <code>rest_framework.schemas.SchemaGenerator</code>. May be used to specify a <code>SchemaGenerator</code> subclass to be passed to the <code>SchemaView</code>.</li>
<li><code>authentication_classes</code>: Default <code>api_settings.DEFAULT_AUTHENTICATION_CLASSES</code>. May be used to pass custom authentication classes to the <code>SchemaView</code>.</li>
<li><code>permission_classes</code>: Default <code>api_settings.DEFAULT_PERMISSION_CLASSES</code> May be used to pass custom permission classes to the <code>SchemaView</code>.</li>
</ul>
<h3 id="customising-code-samples"><a class="toclink" href="#customising-code-samples">Customising code samples</a></h3>
<p>The built-in API documentation includes automatically generated code samples for
each of the available API client libraries.</p>
<p>You may customise these samples by subclassing <code>DocumentationRenderer</code>, setting
<code>languages</code> to the list of languages you wish to support:</p>
<pre><code>from rest_framework.renderers import DocumentationRenderer
class CustomRenderer(DocumentationRenderer):
languages = ['ruby', 'go']
</code></pre>
<p>For each language you need to provide an <code>intro</code> template, detailing installation instructions and such,
plus a generic template for making API requests, that can be filled with individual request details.
See the <a href="https://github.com/encode/django-rest-framework/tree/master/rest_framework/templates/rest_framework/docs/langs">templates for the bundled languages</a> for examples.</p>
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