python 24 lines · 1 tab

Django middleware for request ID tracking

Priya Sharma Jan 2026

1 tab

import uuid
import logging


class RequestIDMiddleware:
    def __init__(self, get_response):
        self.get_response = get_response

    def __call__(self, request):
        # Generate unique request ID
        request_id = str(uuid.uuid4())
        request.id = request_id

        # Add to logging context
        with logging.LoggerAdapter(
            logging.getLogger(__name__),
            {'request_id': request_id}
        ):
            response = self.get_response(request)

        # Include in response headers for client tracking
        response['X-Request-ID'] = request_id

        return response

1 file · python Explain with highlit

Adding unique request IDs helps trace logs across distributed systems. I generate a UUID for each request and attach it to both the request object and response headers. I also add it to the logging context so all log entries for that request include the ID. This makes debugging much easier—I can grep logs for a specific request ID to see its full lifecycle. For microservices, I propagate the request ID to downstream services. This simple middleware provides huge value for production debugging and monitoring.

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