Mastering Request and Response Body Logging in ASP.NET Core Middleware
TL;DR Use custom middleware to log HTTP request and response bodies in ASP.NET Core for better debugging and diagnostics. Implement stream rewinding to read request bodies without breaking downstream middleware. Always redact sensitive data and use selective logging to avoid performance and security issues. Handle large bodies by truncating logs and excluding static or health check endpoints. Consider built-in HttpLogging for simple scenarios, but use custom middleware for full control and compliance. We’ve all been there, stuck debugging an API issue for hours, wishing we could just see what’s actually coming in and going out of our application. That’s exactly what request and response body logging solves. ...