def api_func():
# handle_request may raise 4xx or 5xx exception.
try:
if request.headers.get(MARSHAL_REQUEST_HEADER):
reqs = DataLoader.split_requests(request.get_data())
responses = api.handle_batch_request(reqs)
response_body = DataLoader.merge_responses(responses)
response = make_response(response_body)
else:
response = api.handle_request(request)
except BentoMLException as e:
log_exception(sys.exc_info())
if 400 <= e.status_code < 500 and e.status_code not in (401,
403):
response = make_response(
jsonify(message=
"BentoService error handling API request: %s" %
str(e)),
e.status_code,
)
else:
response = make_response('', e.status_code)
except Exception: # pylint: disable=broad-except
# For all unexpected error, return 500 by default. For example,
# if users' model raises an error of division by zero.
log_exception(sys.exc_info())
response = make_response(
'An error has occurred in BentoML user code when handling this '
'request, find the error details in server logs',
500,
)
return response
def handle_batch_request(self, request):
requests = DataLoader.split_requests(request.data)
with trace(
ZIPKIN_API_URL,
service_name=self.__class__.__name__,
span_name=f"call `{self._handler.__class__.__name__}`",
):
responses = self.handler.handle_batch_request(requests, self.func)
return DataLoader.merge_responses(responses)
def handle_batch_request(self, request: flask.Request):
from bentoml.marshal.utils import DataLoader
requests = DataLoader.split_requests(request.get_data())
with trace(
service_name=self.__class__.__name__,
span_name=f"call `{self.handler.__class__.__name__}`",
):
responses = self.handler.handle_batch_request(requests, self.func)
return DataLoader.merge_responses(responses)