django利用request id便于定位及给日志加上request_id

pip install django-log-request-id

MIDDLEWARE_CLASSES = (
 'log_request_id.middleware.RequestIDMiddleware',
 # ... other middleware goes here
)

LOG_REQUEST_ID_HEADER = "HTTP_X_REQUEST_ID"
GENERATE_REQUEST_ID_IF_NOT_IN_HEADER = True
REQUEST_ID_RESPONSE_HEADER = "RESPONSE_HEADER_NAME"

LOGGING = {
 'version': 1,
 'disable_existing_loggers': False,
 'filters': {
 'request_id': {
  '()': 'log_request_id.filters.RequestIDFilter'
 }
 },
 'formatters': {
 'standard': {
  'format': '%(levelname)-8s [%(asctime)s] [%(request_id)s] %(name)s: %(message)s'
 },
 },
 'handlers': {
 'console': {
  'level': 'DEBUG',
  'class': 'logging.StreamHandler',
  'filters': ['request_id'],
  'formatter': 'standard',
 },
 },
 'loggers': {
 'myapp': {
  'handlers': ['console'],
  'level': 'DEBUG',
  'propagate': False,
 },
 }
}

import logging
import threading
import uuid

from django.utils.deprecation import MiddlewareMixin

local = threading.local()


class RequestIDFilter(logging.Filter):
 def filter(self, record):
 record.request_id = getattr(local, 'request_id', "none")
 return True


class RequestIDMiddleware(MiddlewareMixin):
 def process_request(self, request):
 local.request_id = request.META.get('HTTP_X_REQUEST_ID', uuid.uuid4().hex)

 def process_response(self, request, response):
 if hasattr(request, 'request_id'):
  response['X-Request-ID'] = local.request_id
 try:
  del local.request_id
 except AttributeError:
  pass
 return response

LOGGING = {
 'filters': {
 'request_id': { # 自定义的filter
  '()': 'xxx.middlewares.RequestIDFilter'
 }
 },
 'formatters': {
 'standard': {
  'format': '%(levelname)s [%(asctime)s] [%(request_id)s] %(name)s: %(message)s' # 这里使用filter request_id里的request_id字段
 },
 },
 'handlers': {
 'console': {
  'level': 'DEBUG',
  'class': 'logging.StreamHandler',
  'filters': ['request_id'], # 这里使用上面的filter: request_id
  'formatter': 'standard', # 这里使用上面的formatter: standard
 },
 },
 'loggers': {
 'xxx': {
  'handlers': ['console'], # 这里使用上面的handler: console
  'level': 'DEBUG',
  'propagate': False,
 },
 }
}