django - 我有一个中间件，我想在其中记录每个请求/响应。如何访问 POST 数据？

Question

我有这个中间件

import logging

request_logger = logging.getLogger('api.request.logger')


class LoggingMiddleware(object):

    def process_response(self, request, response):
        request_logger.log(logging.DEBUG,
               "GET: {}. POST: {} response code: {}. response "
               "content: {}".format(request.GET, request.DATA,
                                       response.status_code,
                                       response.content))
        return response

问题是 process_response 方法中的请求没有 .POST、.DATA 或 .body。我正在使用 django-rest-framework 并且我的请求具有 Content-Type: application/json

请注意，如果我将日志记录到 process_request 方法 - 它具有 .body 和我需要的一切。但是，我需要在单个日志条目中同时包含请求和响应。

Answer 1

这是我制作的完整解决方案

"""
Api middleware module
"""
import logging

request_logger = logging.getLogger('api.request.logger')


class LoggingMiddleware(object):
    """
    Provides full logging of requests and responses
    """
    _initial_http_body = None

    def process_request(self, request):
        self._initial_http_body = request.body # this requires because for some reasons there is no way to access request.body in the 'process_response' method.


    def process_response(self, request, response):
        """
        Adding request and response logging
        """
        if request.path.startswith('/api/') and \
                (request.method == "POST" and
                         request.META.get('CONTENT_TYPE') == 'application/json'
                 or request.method == "GET"):
            request_logger.log(logging.DEBUG,
                               "GET: {}. body: {} response code: {}. "
                               "response "
                               "content: {}"
                               .format(request.GET, self._initial_http_body,
                                       response.status_code,
                                       response.content), extra={
                    'tags': {
                        'url': request.build_absolute_uri()
                    }
                })
        return response

注意，这

'tags': {
    'url': request.build_absolute_uri()
}

将允许您在哨兵中按 url 过滤。