How to unique identify each request in a ASP.NET Core 2 application (for logging)

Question

In a ASP.NET Core 2 application, I need a unique identifier (e.g. Guid) for each request so I can include that id in each log and understand the sequence of logs of each req

Answer 1

You may use System.Diagnostics.Activity class (source). From Activity User Guide

Activity.Id serves as hierarchical Request-Id in terms of HTTP Correlation Protocol

This is used for example by Microsoft/ApplicationInsights-aspnetcore for app monitoring.