Files
edx-platform/openedx/core/openapi.py
2019-09-17 16:53:48 -04:00

88 lines
2.6 KiB
Python

"""
Open API support.
"""
import textwrap
from drf_yasg import openapi
from drf_yasg.generators import OpenAPISchemaGenerator
from drf_yasg.utils import swagger_auto_schema as drf_swagger_auto_schema
from drf_yasg.views import get_schema_view
from rest_framework import permissions
# -- Code that will eventually be in another openapi-helpers repo -------------
class ApiSchemaGenerator(OpenAPISchemaGenerator):
"""A schema generator for /api/*
Only includes endpoints in the /api/* url tree, and sets the path prefix
appropriately.
"""
def get_endpoints(self, request):
endpoints = super(ApiSchemaGenerator, self).get_endpoints(request)
subpoints = {p: v for p, v in endpoints.items() if p.startswith("/api/")}
return subpoints
def determine_path_prefix(self, paths):
return "/api/"
def dedent(text):
"""
Dedent multi-line text nicely.
An initial empty line is ignored so that triple-quoted strings don't need
to start with a backslash.
"""
if "\n" in text:
first, rest = text.split("\n", 1)
if not first.strip():
# First line is blank, discard it.
text = rest
return textwrap.dedent(text)
def swagger_auto_schema(**kwargs):
"""
Decorator for documenting an OpenAPI endpoint.
Identical to `drf_yasg.utils.swagger_auto_schema`__ except that
description fields will be dedented properly. All description fields
should be in Markdown.
__ https://drf-yasg.readthedocs.io/en/stable/drf_yasg.html#drf_yasg.utils.swagger_auto_schema
"""
if 'operation_description' in kwargs:
kwargs['operation_description'] = dedent(kwargs['operation_description'])
for param in kwargs.get('manual_parameters', ()):
param.description = dedent(param.description)
return drf_swagger_auto_schema(**kwargs)
def is_schema_request(request):
"""Is this request serving an OpenAPI schema?"""
return request.query_params.get('format') == 'openapi'
# -----------------------------------------------------
openapi_info = openapi.Info(
title="Open edX API",
default_version="v1",
description="APIs for access to Open edX information",
#terms_of_service="https://www.google.com/policies/terms/", # TODO: Do we have these?
contact=openapi.Contact(email="oscm@edx.org"),
#license=openapi.License(name="BSD License"), # TODO: What does this mean?
)
schema_view = get_schema_view(
openapi_info,
generator_class=ApiSchemaGenerator,
public=True,
permission_classes=(permissions.AllowAny,),
)