Collection of LogContext Properties

Question

How can I get collection of properties current LogContext in ASP.NET Core custom Middleware? I push property in Middleware like this:

var profile = context.Request.Host.Host;

using (LogContext.PushProperty("TestProp", "MyCustomProp"))
using (LogContext.PushProperty("Profile", profile))
{
  await _next(context);
}

Then I want to get the whole collection of properties, how can I do that?

Answer 1

The interface is deliberately designed not to surface such information - the information is purely for the use of Enrich.FromLogContext and subject to change. You can read the impl.

You'll thus need to manage this externally.

---

One thing that is supported common practice is to use {Properties} in your message template to render all the properties you added via:

.Enrich.FromLogContext() 
.WriteTo.Console("[{Timestamp:HH:mm:ss} {Level:u3}] {Message:lj} {Properties} {NewLine}{Exception})