middleware

Custom middleware lets me inspect or modify every request and response. I implement both __init__ (called once at startup) and __call__ (for each request). By storing start time in the request, I can measure total processing time including view and te

Custom middleware intercepts all requests and responses. I implement __init__ and __call__ methods. Middleware can modify requests before views, modify responses after views, or short-circuit entirely. Common uses include authentication, logging, CORS

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 t