def exception_handler(exc):
"""
Returns the response that should be used for any given exception.
By default we handle the REST framework `APIException`, and also
Django's builtin `Http404` and `PermissionDenied` exceptions.
Any unhandled exceptions may return `None`, which will cause a 500 error
to be raised.
"""
if isinstance(exc, exceptions.APIException):
headers = {}
if getattr(exc, "auth_header", None):
headers["WWW-Authenticate"] = exc.auth_header
if getattr(exc, "wait", None):
headers["X-Throttle-Wait-Seconds"] = "%d" % exc.wait
detail = format_exception(exc)
return response.Response(detail,
status=exc.status_code,
headers=headers)
elif isinstance(exc, Http404):
return response.NotFound({'_error_message': str(exc)})
elif isinstance(exc, DjangoPermissionDenied):
return response.Forbidden({"_error_message": str(exc)})
# Note: Unhandled exceptions will raise a 500 error.
return None
def get(self, request, format=None):
ret = {}
for key, url_name in api_root_dict.items():
try:
ret[key] = reverse(url_name, request=request, format=format)
except NoReverseMatch:
# Support resources that are prefixed by a parametrized url
ret[key] = request.build_absolute_uri() + key
return response.Response(ret)
def list(self, request, *args, **kwargs):
return response.Response(HOMEPAGE_CHOICES)