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< a class = "brand" href = "http://tomchristie.github.com/django-rest-framework" > Django REST framework< / a >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/tutorial/quickstart" > Quickstart< / a > < / li >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/tutorial/1-serialization" > 1 - Serialization< / a > < / li >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/tutorial/5-relationships-and-hyperlinked-apis" > 5 - Relationships and hyperlinked APIs< / a > < / li >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/api-guide/requests" > Requests< / a > < / li >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/api-guide/throttling" > Throttling< / a > < / li >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/api-guide/content-negotiation" > Content negotiation< / a > < / li >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/api-guide/reverse" > Returning URLs< / a > < / li >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/topics/csrf" > Working with AJAX and CSRF< / a > < / li >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/topics/browser-enhancements" > Browser enhancements< / a > < / li >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/topics/browsable-api" > The Browsable API< / a > < / li >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/topics/rest-hypermedia-hateoas" > REST, Hypermedia & HATEOAS< / a > < / li >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/topics/contributing" > Contributing to REST framework< / a > < / li >
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< li > < a href = "http://tomchristie.github.com/django-rest-framework/topics/migration" > 2.0 Migration Guide< / a > < / li >
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< li class = "main" > < a href = "#returning-urls" > Returning URLs< / a > < / li >
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< li > < a href = "#reverse" > reverse< / a > < / li >
< li > < a href = "#reverse_lazy" > reverse_lazy< / a > < / li >
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< p > < a class = "github" href = "https://github.com/tomchristie/django-rest-framework/blob/restframework2/rest_framework/reverse.py" > < span class = "label label-info" > reverse.py< / span > < / a > < / p >
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< h1 id = "returning-urls" > Returning URLs< / h1 >
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< blockquote >
< p > The central feature that distinguishes the REST architectural style from other network-based styles is its emphasis on a uniform interface between components.< / p >
< p > — Roy Fielding, < a href = "http://www.ics.uci.edu/~fielding/pubs/dissertation/rest_arch_style.htm#sec_5_1_5" > Architectural Styles and the Design of Network-based Software Architectures< / a > < / p >
< / blockquote >
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< p > As a rule, it's probably better practice to return absolute URIs from you Web APIs, such as < code > http://example.com/foobar< / code > , rather than returning relative URIs, such as < code > /foobar< / code > .< / p >
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< p > The advantages of doing so are:< / p >
< ul >
< li > It's more explicit.< / li >
< li > It leaves less work for your API clients.< / li >
< li > There's no ambiguity about the meaning of the string when it's found in representations such as JSON that do not have a native URI type.< / li >
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< li > It makes it easy to do things like markup HTML representations with hyperlinks.< / li >
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< / ul >
< p > REST framework provides two utility functions to make it more simple to return absolute URIs from your Web API.< / p >
< p > There's no requirement for you to use them, but if you do then the self-describing API will be able to automatically hyperlink it's output for you, which makes browsing the API much easier.< / p >
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< h2 id = "reverse" > reverse< / h2 >
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< p > < strong > Signature:< / strong > < code > reverse(viewname, *args, **kwargs)< / code > < / p >
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< p > Has the same behavior as < a href = "https://docs.djangoproject.com/en/dev/topics/http/urls/#reverse" > < code > django.core.urlresolvers.reverse< / code > < / a > , except that it returns a fully qualified URL, using the request to determine the host and port.< / p >
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< p > You should < strong > include the request as a keyword argument< / strong > to the function, for example:< / p >
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< pre class = "prettyprint lang-py" > < code > import datetime
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from rest_framework.reverse import reverse
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from rest_framework.views import APIView
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class APIRootView(APIView):
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def get(self, request):
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year = datetime.datetime.now().year
data = {
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...
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'year-summary-url': reverse('year-summary', args=[year], request=request)
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}
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return Response(data)
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< / code > < / pre >
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< h2 id = "reverse_lazy" > reverse_lazy< / h2 >
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< p > < strong > Signature:< / strong > < code > reverse_lazy(viewname, *args, **kwargs)< / code > < / p >
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< p > Has the same behavior as < a href = "https://docs.djangoproject.com/en/dev/topics/http/urls/#reverse-lazy" > < code > django.core.urlresolvers.reverse_lazy< / code > < / a > , except that it returns a fully qualified URL, using the request to determine the host and port.< / p >
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< p > As with the < code > reverse< / code > function, you should < strong > include the request as a keyword argument< / strong > to the function, for example:< / p >
< pre class = "prettyprint lang-py" > < code > api_root = reverse_lazy('api-root', request=request)
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