def build_app(db=None):
"""
Building routes and forming the root freezer-api app
:param db: instance of elastic search db class if not freezer will try to
initialize this instance itself
:return: wsgi app
"""
if not db:
db = driver.get_db()
# injecting FreezerContext & hooks
middleware_list = [utils.FuncMiddleware(hook) for hook in
utils.before_hooks()]
middleware_list.append(middleware.JSONTranslator())
middleware_list.append(middleware.RequireJSON())
app = falcon.API(middleware=middleware_list)
for exception_class in freezer_api_exc.exception_handlers_catalog:
app.add_error_handler(exception_class, exception_class.handle)
endpoint_catalog = [
('/v1', v1.public_endpoints(db)),
('/', [('', versions.Resource())])
]
for version_path, endpoints in endpoint_catalog:
for route, resource in endpoints:
app.add_route(version_path + route, resource)
return app
def build_app_v2():
"""Building routes and forming the root freezer-api app
This uses the 'middleware' named argument to specify middleware for falcon
instead of the 'before' and 'after' hooks that were removed after 0.3.0
(both approaches were available for versions 0.2.0 - 0.3.0)
:return: falcon WSGI app
"""
# injecting FreezerContext & hooks
middleware_list = [
utils.FuncMiddleware(hook) for hook in utils.before_hooks()
]
middleware_list.append(middleware.RequireJSON())
middleware_list.append(middleware.JSONTranslator())
app = falcon.API(middleware=middleware_list)
db = driver.get_db()
# setup freezer policy
policy.setup_policy(CONF)
for exception_class in freezer_api_exc.exception_handlers_catalog:
app.add_error_handler(exception_class, exception_class.handle)
endpoint_catalog = [('', v2.public_endpoints(db))]
for version_path, endpoints in endpoint_catalog:
for route, resource in endpoints:
app.add_route(version_path + route, resource)
return app
def build_app_v1():
"""Building routes and forming the root freezer-api app
This uses the 'middleware' named argument to specify middleware for falcon
instead of the 'before' and 'after' hooks that were removed after 0.3.0
(both approaches were available for versions 0.2.0 - 0.3.0)
:return: falcon WSGI app
"""
# injecting FreezerContext & hooks
middleware_list = [utils.FuncMiddleware(hook) for hook in
utils.before_hooks()]
middleware_list.append(middleware.RequireJSON())
middleware_list.append(middleware.JSONTranslator())
# The signature of falcon.API() differs between versions, suppress pylint:
# pylint: disable=unexpected-keyword-arg
app = falcon.API(middleware=middleware_list)
app = configure_app(app)
return app
def build_app_v0():
"""Instantiate the root freezer-api app
Old versions of falcon (< 0.2.0) don't have a named 'middleware' argument.
This was introduced in version 0.2.0b1, so before that we need to instead
provide "before" hooks (request processing) and "after" hooks (response
processing).
:return: falcon WSGI app
"""
# injecting FreezerContext & hooks
before_hooks = utils.before_hooks() + [
middleware.RequireJSON().as_before_hook()]
after_hooks = [middleware.JSONTranslator().as_after_hook()]
# The signature of falcon.API() differs between versions, suppress pylint:
# pylint: disable=unexpected-keyword-arg
app = falcon.API(before=before_hooks, after=after_hooks)
app = configure_app(app)
return app
def build_app_v1():
"""Building routes and forming the root freezer-api app
This uses the 'middleware' named argument to specify middleware for falcon
instead of the 'before' and 'after' hooks that were removed after 0.3.0
(both approaches were available for versions 0.2.0 - 0.3.0)
:return: falcon WSGI app
"""
# injecting FreezerContext & hooks
middleware_list = [
utils.FuncMiddleware(hook) for hook in utils.before_hooks()
]
middleware_list.append(middleware.RequireJSON())
middleware_list.append(middleware.JSONTranslator())
# The signature of falcon.API() differs between versions, suppress pylint:
# pylint: disable=unexpected-keyword-arg
app = falcon.API(middleware=middleware_list)
app = configure_app(app)
return app
def build_app_v0():
"""Instantiate the root freezer-api app
Old versions of falcon (< 0.2.0) don't have a named 'middleware' argument.
This was introduced in version 0.2.0b1, so before that we need to instead
provide "before" hooks (request processing) and "after" hooks (response
processing).
:return: falcon WSGI app
"""
# injecting FreezerContext & hooks
before_hooks = utils.before_hooks() + [
middleware.RequireJSON().as_before_hook()
]
after_hooks = [middleware.JSONTranslator().as_after_hook()]
# The signature of falcon.API() differs between versions, suppress pylint:
# pylint: disable=unexpected-keyword-arg
app = falcon.API(before=before_hooks, after=after_hooks)
app = configure_app(app)
return app
