python - Logging requests to django-rest-framework

Question

For debugging purposes, I would like to use Django's logging mechanism to log each and every incoming request when it "arrives" at django-rest-framework's doorstep.

Djagno offers logging of its requests (only "warning" log level and above) in the following manner (from LOGGING section in settings.py):

'django.request': {
        'handlers': ['mail_admins'],
        'level': 'ERROR',
        'propagate': False,
 },

I'm looking to achieve something like this (notice: log level is DEBUG):

'rest_framework.request': {
        'handlers': ['logfile'],
        'level': 'DEBUG',
        'propagate': False,
 },

Is there a way I can do that without embedding a logger in to DRF's source code?
Is there maybe some sort of "Logging Backend" option in DRF I'm not aware of?

Answer 1

I made a generic RequestLogMiddleware that can be hooked into any Django View using decorator_from_middleware.

request_log/middleware.py

import socket
import time


class RequestLogMiddleware(object):
    def process_request(self, request):
        request.start_time = time.time()

    def process_response(self, request, response):

        if response['content-type'] == 'application/json':
            if getattr(response, 'streaming', False):
                response_body = '<<<Streaming>>>'
            else:
                response_body = response.content
        else:
            response_body = '<<<Not JSON>>>'

        log_data = {
            'user': request.user.pk,

            'remote_address': request.META['REMOTE_ADDR'],
            'server_hostname': socket.gethostname(),

            'request_method': request.method,
            'request_path': request.get_full_path(),
            'request_body': request.body,

            'response_status': response.status_code,
            'response_body': response_body,

            'run_time': time.time() - request.start_time,
        }

        # save log_data in some way

        return response

request_log/mixins.py

from django.utils.decorators import decorator_from_middleware

from .middleware import RequestLogMiddleware


class RequestLogViewMixin(object):
    """
    Adds RequestLogMiddleware to any Django View by overriding as_view.
    """

    @classmethod
    def as_view(cls, *args, **kwargs):
        view = super(RequestLogViewMixin, cls).as_view(*args, **kwargs)
        view = decorator_from_middleware(RequestLogMiddleware)(view)
        return view

my_django_rest_api/views.py

from rest_framework import generics

from ...request_log.mixins import RequestLogViewMixin

class SomeListView(
    RequestLogViewMixin,
    generics.ListAPIView
):
    ...