How do I log a custom field in NLog to database using Microsoft.Extensions.Logging?

Question

I am using Microsoft.Extensions.Logging together with NLog. My app is .NET Core 3.1.

I would like to extend logging with custom fields.

Is it possible or will I need to use NLog directly?

  <parameter name="@custom_guid" layout="${custom_guid}"/>

         var config = new Dictionary<string, object>();
         config.Add("custom_guid", "test"); 
         _logger.LogInformation("Test message", config);

There is a wiki-page: https://github.com/NLog/NLog.Extensions.Logging/wiki/NLog-properties-with-Microsoft-Extension-Logging — Rolf Kristensen, May 29 '20 at 16:20

score 0 · Accepted Answer · answered May 29 '20 at 15:19

0

You could do this:

var config = new Dictionary<string, object>();
config.Add("custom_guid", "test");

using (_logger.BeginScope(config))
{
   _logger.LogInformation("Test message");
}

And use ${mdlc:custom_guid}

answered May 29 '20 at 15:19

Julian

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I used: ${event-properties:custom_guid} and that worked for me. Thank you – cashmere May 29 '20 at 19:09

How do I log a custom field in NLog to database using Microsoft.Extensions.Logging?

1 Answers1