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40 lines
1.9 KiB
ReStructuredText
40 lines
1.9 KiB
ReStructuredText
Returning URIs from your Web APIs
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As a rule, it's probably better practice to return absolute URIs from you web APIs, e.g. "http://example.com/foobar", rather than returning relative URIs, e.g. "/foobar".
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The advantages of doing so are:
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* It's more explicit.
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* It leaves less work for your API clients.
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* 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.
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* It allows us to easily do things like markup HTML representations with hyperlinks.
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Django REST framework provides two utility functions to make it simpler to return absolute URIs from your Web API.
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There's no requirement for you to use them, but if you do then the self-describing API will be able to automatically hyperlink its output for you, which makes browsing the API much easier.
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reverse(viewname, request, ...)
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-------------------------------
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The :py:func:`~reverse.reverse` function has the same behavior as `django.core.urlresolvers.reverse`_, except that it takes a request object and returns a fully qualified URL, using the request to determine the host and port::
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from djangorestframework.reverse import reverse
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from djangorestframework.views import View
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class MyView(View):
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def get(self, request):
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context = {
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'url': reverse('year-summary', request, args=[1945])
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}
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return Response(context)
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reverse_lazy(viewname, request, ...)
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------------------------------------
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The :py:func:`~reverse.reverse_lazy` function has the same behavior as `django.core.urlresolvers.reverse_lazy`_, except that it takes a request object and returns a fully qualified URL, using the request to determine the host and port.
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.. _django.core.urlresolvers.reverse: https://docs.djangoproject.com/en/dev/topics/http/urls/#reverse
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.. _django.core.urlresolvers.reverse_lazy: https://docs.djangoproject.com/en/dev/topics/http/urls/#reverse-lazy
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