encode/django-rest-framework
1
1
Fork 0
mirror of https://github.com/encode/django-rest-framework.git synced 2024-11-15 06:07:41 +03:00
Code Issues Packages Projects Releases Wiki Activity
e9dbffb602
django-rest-framework/api-guide/routers.html
Tom Christie e9dbffb602 Latest docs build
2013-12-09 08:47:06 +00:00

372 lines
23 KiB
HTML
Raw Blame History

<!DOCTYPE html>
<html lang="en">
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta charset="utf-8">
<title>Django REST framework - Routers</title>
<link href="http://django-rest-framework.org/img/favicon.ico" rel="icon" type="image/x-icon">
<link rel="canonical" href="http://django-rest-framework.org/api-guide/routers"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Django, API, REST, Routers, API Guide, Custom Routers">
<meta name="author" content="Tom Christie">
<!-- Le styles -->
<link href="http://django-rest-framework.org/css/prettify.css" rel="stylesheet">
<link href="http://django-rest-framework.org/css/bootstrap.css" rel="stylesheet">
<link href="http://django-rest-framework.org/css/bootstrap-responsive.css" rel="stylesheet">
<link href="http://django-rest-framework.org/css/default.css" rel="stylesheet">
<!-- Le HTML5 shim, for IE6-8 support of HTML5 elements -->
<!--[if lt IE 9]>
<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-18852272-2']);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
</script>
</head>
<body onload="prettyPrint()" class="routers-page">
<div class="wrapper">
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-inner">
<div class="container-fluid">
<a class="repo-link btn btn-primary btn-small" href="https://github.com/tomchristie/django-rest-framework/tree/master">GitHub</a>
<a class="repo-link btn btn-inverse btn-small " href="../api-guide/parsers">Next <i class="icon-arrow-right icon-white"></i></a>
<a class="repo-link btn btn-inverse btn-small " href="../api-guide/viewsets"><i class="icon-arrow-left icon-white"></i> Previous</a>
<a class="repo-link btn btn-inverse btn-small" href="#searchModal" data-toggle="modal"><i class="icon-search icon-white"></i> Search</a>
<a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</a>
<a class="brand" href="http://django-rest-framework.org">Django REST framework</a>
<div class="nav-collapse collapse">
<ul class="nav">
<li><a href="http://django-rest-framework.org">Home</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Tutorial <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="http://django-rest-framework.org/tutorial/quickstart">Quickstart</a></li>
<li><a href="http://django-rest-framework.org/tutorial/1-serialization">1 - Serialization</a></li>
<li><a href="http://django-rest-framework.org/tutorial/2-requests-and-responses">2 - Requests and responses</a></li>
<li><a href="http://django-rest-framework.org/tutorial/3-class-based-views">3 - Class based views</a></li>
<li><a href="http://django-rest-framework.org/tutorial/4-authentication-and-permissions">4 - Authentication and permissions</a></li>
<li><a href="http://django-rest-framework.org/tutorial/5-relationships-and-hyperlinked-apis">5 - Relationships and hyperlinked APIs</a></li>
<li><a href="http://django-rest-framework.org/tutorial/6-viewsets-and-routers">6 - Viewsets and routers</a></li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">API Guide <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="http://django-rest-framework.org/api-guide/requests">Requests</a></li>
<li><a href="http://django-rest-framework.org/api-guide/responses">Responses</a></li>
<li><a href="http://django-rest-framework.org/api-guide/views">Views</a></li>
<li><a href="http://django-rest-framework.org/api-guide/generic-views">Generic views</a></li>
<li><a href="http://django-rest-framework.org/api-guide/viewsets">Viewsets</a></li>
<li><a href="http://django-rest-framework.org/api-guide/routers">Routers</a></li>
<li><a href="http://django-rest-framework.org/api-guide/parsers">Parsers</a></li>
<li><a href="http://django-rest-framework.org/api-guide/renderers">Renderers</a></li>
<li><a href="http://django-rest-framework.org/api-guide/serializers">Serializers</a></li>
<li><a href="http://django-rest-framework.org/api-guide/fields">Serializer fields</a></li>
<li><a href="http://django-rest-framework.org/api-guide/relations">Serializer relations</a></li>
<li><a href="http://django-rest-framework.org/api-guide/authentication">Authentication</a></li>
<li><a href="http://django-rest-framework.org/api-guide/permissions">Permissions</a></li>
<li><a href="http://django-rest-framework.org/api-guide/throttling">Throttling</a></li>
<li><a href="http://django-rest-framework.org/api-guide/filtering">Filtering</a></li>
<li><a href="http://django-rest-framework.org/api-guide/pagination">Pagination</a></li>
<li><a href="http://django-rest-framework.org/api-guide/content-negotiation">Content negotiation</a></li>
<li><a href="http://django-rest-framework.org/api-guide/format-suffixes">Format suffixes</a></li>
<li><a href="http://django-rest-framework.org/api-guide/reverse">Returning URLs</a></li>
<li><a href="http://django-rest-framework.org/api-guide/exceptions">Exceptions</a></li>
<li><a href="http://django-rest-framework.org/api-guide/status-codes">Status codes</a></li>
<li><a href="http://django-rest-framework.org/api-guide/testing">Testing</a></li>
<li><a href="http://django-rest-framework.org/api-guide/settings">Settings</a></li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Topics <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="http://django-rest-framework.org/topics/documenting-your-api">Documenting your API</a></li>
<li><a href="http://django-rest-framework.org/topics/ajax-csrf-cors">AJAX, CSRF & CORS</a></li>
<li><a href="http://django-rest-framework.org/topics/browser-enhancements">Browser enhancements</a></li>
<li><a href="http://django-rest-framework.org/topics/browsable-api">The Browsable API</a></li>
<li><a href="http://django-rest-framework.org/topics/rest-hypermedia-hateoas">REST, Hypermedia & HATEOAS</a></li>
<li><a href="http://django-rest-framework.org/topics/contributing">Contributing to REST framework</a></li>
<li><a href="http://django-rest-framework.org/topics/rest-framework-2-announcement">2.0 Announcement</a></li>
<li><a href="http://django-rest-framework.org/topics/2.2-announcement">2.2 Announcement</a></li>
<li><a href="http://django-rest-framework.org/topics/2.3-announcement">2.3 Announcement</a></li>
<li><a href="http://django-rest-framework.org/topics/release-notes">Release Notes</a></li>
<li><a href="http://django-rest-framework.org/topics/credits">Credits</a></li>
</ul>
</li>
</ul>
<ul class="nav pull-right">
<!-- TODO
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Version: 2.0.0 <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="#">Trunk</a></li>
<li><a href="#">2.0.0</a></li>
</ul>
</li>
-->
</ul>
</div><!--/.nav-collapse -->
</div>
</div>
</div>
<div class="body-content">
<div class="container-fluid">
<!-- Search Modal -->
<div id="searchModal" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
<h3 id="myModalLabel">Documentation search</h3>
</div>
<div class="modal-body">
<!-- Custom google search -->
<script>
(function() {
var cx = '015016005043623903336:rxraeohqk6w';
var gcse = document.createElement('script');
gcse.type = 'text/javascript';
gcse.async = true;
gcse.src = (document.location.protocol == 'https:' ? 'https:' : 'http:') +
'//www.google.com/cse/cse.js?cx=' + cx;
var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(gcse, s);
})();
</script>
<gcse:search></gcse:search>
</div>
<div class="modal-footer">
<button class="btn" data-dismiss="modal" aria-hidden="true">Close</button>
</div>
</div>
<div class="row-fluid">
<div class="span3">
<!-- TODO
<p style="margin-top: -12px">
<a class="btn btn-mini btn-primary" style="width: 60px">&laquo; previous</a>
<a class="btn btn-mini btn-primary" style="float: right; margin-right: 8px; width: 60px;">next &raquo;</a>
</p>
-->
<div id="table-of-contents">
<ul class="nav nav-list side-nav well sidebar-nav-fixed">
<li class="main"><a href="#routers">Routers</a></li>
<li><a href="#usage">Usage</a></li>
<li class="main"><a href="#api-guide">API Guide</a></li>
<li><a href="#simplerouter">SimpleRouter</a></li>
<li><a href="#defaultrouter">DefaultRouter</a></li>
<li class="main"><a href="#custom-routers">Custom Routers</a></li>
<li><a href="#example">Example</a></li>
<li><a href="#advanced-custom-routers">Advanced custom routers</a></li>
<div>
<hr>
<p><strong>The team behind REST framework is launching a new API service.</strong></p>
<p>If you want to be first in line when we start issuing invitations, please sign up here:</p>
<!-- Begin MailChimp Signup Form -->
<link href="//cdn-images.mailchimp.com/embedcode/slim-081711.css" rel="stylesheet" type="text/css">
<style type="text/css">
#mc_embed_signup{background:#fff; clear:left; font:14px Helvetica,Arial,sans-serif; }
/* Add your own MailChimp form style overrides in your site stylesheet or in this style block.
We recommend moving this block and the preceding CSS link to the HEAD of your HTML file. */
</style>
<div id="mc_embed_signup" style="background: rgb(245, 245, 245)">
<form action="http://dabapps.us1.list-manage1.com/subscribe/post?u=cf73a9994eb5b8d8d461b5dfb&amp;id=cb6af8e8bd" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate>
<!-- <label for="mce-EMAIL">Keep me posted!</label>
--> <input style="width: 90%" type="email" value="" name="EMAIL" class="email" id="mce-EMAIL" placeholder="email address" required>
<div class="clear"><input class="btn btn-success" type="submit" value="Yes, keep me posted!" name="subscribe" id="mc-embedded-subscribe" class="button"></div>
</form>
</div>
</style></div>
</ul>
<!--End mc_embed_signup-->
</div>
</div>
<div id="main-content" class="span9">
<p><a class="github" href="https://github.com/tomchristie/django-rest-framework/tree/master/rest_framework/routers.py"><span class="label label-info">routers.py</span></a></p>
<h1 id="routers">Routers</h1>
<blockquote>
<p>Resource routing allows you to quickly declare all of the common routes for a given resourceful controller. Instead of declaring separate routes for your index... a resourceful route declares them in a single line of code.</p>
<p>&mdash; <a href="http://guides.rubyonrails.org/routing.html">Ruby on Rails Documentation</a></p>
</blockquote>
<p>Some Web frameworks such as Rails provide functionality for automatically determining how the URLs for an application should be mapped to the logic that deals with handling incoming requests.</p>
<p>REST framework adds support for automatic URL routing to Django, and provides you with a simple, quick and consistent way of wiring your view logic to a set of URLs.</p>
<h2 id="usage">Usage</h2>
<p>Here's an example of a simple URL conf, that uses <code>DefaultRouter</code>.</p>
<pre class="prettyprint lang-py"><code>from rest_framework import routers
router = routers.SimpleRouter()
router.register(r'users', UserViewSet)
router.register(r'accounts', AccountViewSet)
urlpatterns = router.urls
</code></pre>
<p>There are two mandatory arguments to the <code>register()</code> method:</p>
<ul>
<li><code>prefix</code> - The URL prefix to use for this set of routes.</li>
<li><code>viewset</code> - The viewset class.</li>
</ul>
<p>Optionally, you may also specify an additional argument:</p>
<ul>
<li><code>base_name</code> - The base to use for the URL names that are created. If unset the basename will be automatically generated based on the <code>model</code> or <code>queryset</code> attribute on the viewset, if it has one. Note that if the viewset does not include a <code>model</code> or <code>queryset</code> attribute then you must set <code>base_name</code> when registering the viewset.</li>
</ul>
<p>The example above would generate the following URL patterns:</p>
<ul>
<li>URL pattern: <code>^users/$</code> Name: <code>'user-list'</code></li>
<li>URL pattern: <code>^users/{pk}/$</code> Name: <code>'user-detail'</code></li>
<li>URL pattern: <code>^accounts/$</code> Name: <code>'account-list'</code></li>
<li>URL pattern: <code>^accounts/{pk}/$</code> Name: <code>'account-detail'</code></li>
</ul>
<h3 id="extra-link-and-actions">Extra link and actions</h3>
<p>Any methods on the viewset decorated with <code>@link</code> or <code>@action</code> will also be routed.
For example, given a method like this on the <code>UserViewSet</code> class:</p>
<pre class="prettyprint lang-py"><code>from myapp.permissions import IsAdminOrIsSelf
from rest_framework.decorators import action
@action(permission_classes=[IsAdminOrIsSelf])
def set_password(self, request, pk=None):
...
</code></pre>
<p>The following URL pattern would additionally be generated:</p>
<ul>
<li>URL pattern: <code>^users/{pk}/set_password/$</code> Name: <code>'user-set-password'</code></li>
</ul>
<h1 id="api-guide">API Guide</h1>
<h2 id="simplerouter">SimpleRouter</h2>
<p>This router includes routes for the standard set of <code>list</code>, <code>create</code>, <code>retrieve</code>, <code>update</code>, <code>partial_update</code> and <code>destroy</code> actions. The viewset can also mark additional methods to be routed, using the <code>@link</code> or <code>@action</code> decorators.</p>
<table border=1>
<tr><th>URL Style</th><th>HTTP Method</th><th>Action</th><th>URL Name</th></tr>
<tr><td rowspan=2>{prefix}/</td><td>GET</td><td>list</td><td rowspan=2>{basename}-list</td></tr></tr>
<tr><td>POST</td><td>create</td></tr>
<tr><td rowspan=4>{prefix}/{lookup}/</td><td>GET</td><td>retrieve</td><td rowspan=4>{basename}-detail</td></tr></tr>
<tr><td>PUT</td><td>update</td></tr>
<tr><td>PATCH</td><td>partial_update</td></tr>
<tr><td>DELETE</td><td>destroy</td></tr>
<tr><td rowspan=2>{prefix}/{lookup}/{methodname}/</td><td>GET</td><td>@link decorated method</td><td rowspan=2>{basename}-{methodname}</td></tr>
<tr><td>POST</td><td>@action decorated method</td></tr>
</table>
<p>By default the URLs created by <code>SimpleRouter</code> are appended with a trailing slash.
This behavior can be modified by setting the <code>trailing_slash</code> argument to <code>False</code> when instantiating the router. For example:</p>
<pre class="prettyprint lang-py"><code>router = SimpleRouter(trailing_slash=False)
</code></pre>
<p>Trailing slashes are conventional in Django, but are not used by default in some other frameworks such as Rails. Which style you choose to use is largely a matter of preference, although some javascript frameworks may expect a particular routing style.</p>
<h2 id="defaultrouter">DefaultRouter</h2>
<p>This router is similar to <code>SimpleRouter</code> as above, but additionally includes a default API root view, that returns a response containing hyperlinks to all the list views. It also generates routes for optional <code>.json</code> style format suffixes.</p>
<table border=1>
<tr><th>URL Style</th><th>HTTP Method</th><th>Action</th><th>URL Name</th></tr>
<tr><td>[.format]</td><td>GET</td><td>automatically generated root view</td><td>api-root</td></tr></tr>
<tr><td rowspan=2>{prefix}/[.format]</td><td>GET</td><td>list</td><td rowspan=2>{basename}-list</td></tr></tr>
<tr><td>POST</td><td>create</td></tr>
<tr><td rowspan=4>{prefix}/{lookup}/[.format]</td><td>GET</td><td>retrieve</td><td rowspan=4>{basename}-detail</td></tr></tr>
<tr><td>PUT</td><td>update</td></tr>
<tr><td>PATCH</td><td>partial_update</td></tr>
<tr><td>DELETE</td><td>destroy</td></tr>
<tr><td rowspan=2>{prefix}/{lookup}/{methodname}/[.format]</td><td>GET</td><td>@link decorated method</td><td rowspan=2>{basename}-{methodname}</td></tr>
<tr><td>POST</td><td>@action decorated method</td></tr>
</table>
<p>As with <code>SimpleRouter</code> the trailing slashes on the URL routes can be removed by setting the <code>trailing_slash</code> argument to <code>False</code> when instantiating the router.</p>
<pre class="prettyprint lang-py"><code>router = DefaultRouter(trailing_slash=False)
</code></pre>
<h1 id="custom-routers">Custom Routers</h1>
<p>Implementing a custom router isn't something you'd need to do very often, but it can be useful if you have specific requirements about how the your URLs for your API are structured. Doing so allows you to encapsulate the URL structure in a reusable way that ensures you don't have to write your URL patterns explicitly for each new view.</p>
<p>The simplest way to implement a custom router is to subclass one of the existing router classes. The <code>.routes</code> attribute is used to template the URL patterns that will be mapped to each viewset. The <code>.routes</code> attribute is a list of <code>Route</code> named tuples.</p>
<p>The arguments to the <code>Route</code> named tuple are:</p>
<p><strong>url</strong>: A string representing the URL to be routed. May include the following format strings:</p>
<ul>
<li><code>{prefix}</code> - The URL prefix to use for this set of routes.</li>
<li><code>{lookup}</code> - The lookup field used to match against a single instance.</li>
<li><code>{trailing_slash}</code> - Either a '/' or an empty string, depending on the <code>trailing_slash</code> argument.</li>
</ul>
<p><strong>mapping</strong>: A mapping of HTTP method names to the view methods</p>
<p><strong>name</strong>: The name of the URL as used in <code>reverse</code> calls. May include the following format string:</p>
<ul>
<li><code>{basename}</code> - The base to use for the URL names that are created.</li>
</ul>
<p><strong>initkwargs</strong>: A dictionary of any additional arguments that should be passed when instantiating the view. Note that the <code>suffix</code> argument is reserved for identifying the viewset type, used when generating the view name and breadcrumb links.</p>
<h2 id="example">Example</h2>
<p>The following example will only route to the <code>list</code> and <code>retrieve</code> actions, and does not use the trailing slash convention.</p>
<pre class="prettyprint lang-py"><code>from rest_framework.routers import Route, SimpleRouter
class ReadOnlyRouter(SimpleRouter):
"""
A router for read-only APIs, which doesn't use trailing slashes.
"""
routes = [
Route(url=r'^{prefix}$',
mapping={'get': 'list'},
name='{basename}-list',
initkwargs={'suffix': 'List'}),
Route(url=r'^{prefix}/{lookup}$',
mapping={'get': 'retrieve'},
name='{basename}-detail',
initkwargs={'suffix': 'Detail'})
]
</code></pre>
<p>The <code>SimpleRouter</code> class provides another example of setting the <code>.routes</code> attribute.</p>
<h2 id="advanced-custom-routers">Advanced custom routers</h2>
<p>If you want to provide totally custom behavior, you can override <code>BaseRouter</code> and override the <code>get_urls(self)</code> method. The method should inspect the registered viewsets and return a list of URL patterns. The registered prefix, viewset and basename tuples may be inspected by accessing the <code>self.registry</code> attribute. </p>
<p>You may also want to override the <code>get_default_base_name(self, viewset)</code> method, or else always explicitly set the <code>base_name</code> argument when registering your viewsets with the router.</p>
</div><!--/span-->
</div><!--/row-->
</div><!--/.fluid-container-->
</div><!--/.body content-->
<div id="push"></div>
</div><!--/.wrapper -->
<footer class="span12">
<p>Sponsored by <a href="http://dabapps.com/">DabApps</a>.</a></p>
</footer>
<!-- Le javascript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="http://django-rest-framework.org/js/jquery-1.8.1-min.js"></script>
<script src="http://django-rest-framework.org/js/prettify-1.0.js"></script>
<script src="http://django-rest-framework.org/js/bootstrap-2.1.1-min.js"></script>
<script>
//$('.side-nav').scrollspy()
var shiftWindow = function() { scrollBy(0, -50) };
if (location.hash) shiftWindow();
window.addEventListener("hashchange", shiftWindow);
$('.dropdown-menu').on('click touchstart', function(event) {
event.stopPropagation();
});
// Dynamically force sidenav to no higher than browser window
$('.side-nav').css('max-height', window.innerHeight - 130);
$(function(){
$(window).resize(function(){
$('.side-nav').css('max-height', window.innerHeight - 130);
});
});
</script>
</body></html>
Reference in New Issue View Git Blame Copy Permalink