django-rest-framework/tutorial/quickstart.html
2013-12-09 08:47:06 +00:00

388 lines
19 KiB
HTML

<!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 - Quickstart</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/tutorial/quickstart"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Django, API, REST, Quickstart">
<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="quickstart-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="../tutorial/1-serialization">Next <i class="icon-arrow-right icon-white"></i></a>
<a class="repo-link btn btn-inverse btn-small " href="/"><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="#quickstart">Quickstart</a></li>
<li><a href="#project-setup">Project setup</a></li>
<li><a href="#serializers">Serializers</a></li>
<li><a href="#views">Views</a></li>
<li><a href="#urls">URLs</a></li>
<li><a href="#settings">Settings</a></li>
<li><a href="#testing-our-api">Testing our API</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">
<h1 id="quickstart">Quickstart</h1>
<p>We're going to create a simple API to allow admin users to view and edit the users and groups in the system.</p>
<h2 id="project-setup">Project setup</h2>
<p>Create a new Django project named <code>tutorial</code>, then start a new app called <code>quickstart</code>.</p>
<pre class="prettyprint lang-py"><code># Set up a new project
django-admin.py startproject tutorial
cd tutorial
# Create a virtualenv to isolate our package dependencies locally
virtualenv env
source env/bin/activate # On Windows use `env\Scripts\activate`
# Install Django and Django REST framework into the virtualenv
pip install django
pip install djangorestframework
# Create a new app
python manage.py startapp quickstart
</code></pre>
<p>Next you'll need to get a database set up and synced. If you just want to use SQLite for now, then you'll want to edit your <code>tutorial/settings.py</code> module to include something like this:</p>
<pre class="prettyprint lang-py"><code>DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': 'database.sql',
'USER': '',
'PASSWORD': '',
'HOST': '',
'PORT': ''
}
}
</code></pre>
<p>The run <code>syncdb</code> like so:</p>
<pre class="prettyprint lang-py"><code>python manage.py syncdb
</code></pre>
<p>Once you've set up a database and got everything synced and ready to go, open up the app's directory and we'll get coding...</p>
<h2 id="serializers">Serializers</h2>
<p>First up we're going to define some serializers in <code>quickstart/serializers.py</code> that we'll use for our data representations.</p>
<pre class="prettyprint lang-py"><code>from django.contrib.auth.models import User, Group
from rest_framework import serializers
class UserSerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = User
fields = ('url', 'username', 'email', 'groups')
class GroupSerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = Group
fields = ('url', 'name')
</code></pre>
<p>Notice that we're using hyperlinked relations in this case, with <code>HyperlinkedModelSerializer</code>. You can also use primary key and various other relationships, but hyperlinking is good RESTful design.</p>
<h2 id="views">Views</h2>
<p>Right, we'd better write some views then. Open <code>quickstart/views.py</code> and get typing.</p>
<pre class="prettyprint lang-py"><code>from django.contrib.auth.models import User, Group
from rest_framework import viewsets
from quickstart.serializers import UserSerializer, GroupSerializer
class UserViewSet(viewsets.ModelViewSet):
"""
API endpoint that allows users to be viewed or edited.
"""
queryset = User.objects.all()
serializer_class = UserSerializer
class GroupViewSet(viewsets.ModelViewSet):
"""
API endpoint that allows groups to be viewed or edited.
"""
queryset = Group.objects.all()
serializer_class = GroupSerializer
</code></pre>
<p>Rather than write multiple views we're grouping together all the common behavior into classes called <code>ViewSets</code>.</p>
<p>We can easily break these down into individual views if we need to, but using viewsets keeps the view logic nicely organized as well as being very concise.</p>
<h2 id="urls">URLs</h2>
<p>Okay, now let's wire up the API URLs. On to <code>tutorial/urls.py</code>...</p>
<pre class="prettyprint lang-py"><code>from django.conf.urls import patterns, url, include
from rest_framework import routers
from quickstart import views
router = routers.DefaultRouter()
router.register(r'users', views.UserViewSet)
router.register(r'groups', views.GroupViewSet)
# Wire up our API using automatic URL routing.
# Additionally, we include login URLs for the browseable API.
urlpatterns = patterns('',
url(r'^', include(router.urls)),
url(r'^api-auth/', include('rest_framework.urls', namespace='rest_framework'))
)
</code></pre>
<p>Because we're using viewsets instead of views, we can automatically generate the URL conf for our API, by simply registering the viewsets with a router class.</p>
<p>Again, if we need more control over the API URLs we can simply drop down to using regular class based views, and writing the URL conf explicitly.</p>
<p>Finally, we're including default login and logout views for use with the browsable API. That's optional, but useful if your API requires authentication and you want to use the browsable API.</p>
<h2 id="settings">Settings</h2>
<p>We'd also like to set a few global settings. We'd like to turn on pagination, and we want our API to only be accessible to admin users. The settings module will be in <code>tutorial/settings.py</code></p>
<pre class="prettyprint lang-py"><code>INSTALLED_APPS = (
...
'rest_framework',
)
REST_FRAMEWORK = {
'DEFAULT_PERMISSION_CLASSES': ('rest_framework.permissions.IsAdminUser',),
'PAGINATE_BY': 10
}
</code></pre>
<p>Okay, we're done.</p>
<hr />
<h2 id="testing-our-api">Testing our API</h2>
<p>We're now ready to test the API we've built. Let's fire up the server from the command line.</p>
<pre class="prettyprint lang-py"><code>python ./manage.py runserver
</code></pre>
<p>We can now access our API, both from the command-line, using tools like <code>curl</code>...</p>
<pre class="prettyprint lang-py"><code>bash: curl -H 'Accept: application/json; indent=4' -u admin:password http://127.0.0.1:8000/users/
{
"count": 2,
"next": null,
"previous": null,
"results": [
{
"email": "admin@example.com",
"groups": [],
"url": "http://127.0.0.1:8000/users/1/",
"username": "admin"
},
{
"email": "tom@example.com",
"groups": [ ],
"url": "http://127.0.0.1:8000/users/2/",
"username": "tom"
}
]
}
</code></pre>
<p>Or directly through the browser...</p>
<p><img alt="Quick start image" src="../img/quickstart.png" /></p>
<p>Great, that was easy!</p>
<p>If you want to get a more in depth understanding of how REST framework fits together head on over to <a href="1-serialization">the tutorial</a>, or start browsing the <a href="../#api-guide">API guide</a>.</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>