NLog.Owin.Logging

NLog logging adapter for OWIN!

Installation

There's a nuget package you can install this way:

Install-Package NLog.Owin.Logging

Using

To use the NLogAdapter with its default configuration:

using NLog.Owin.Logging;

public class Startup
{
	public void Configuration(IAppBuilder app)
	{
		app.UseNLog();
	}
}

The default translation table is:

TraceEventType	NLog Loglevel
Critical	Fatal
Error	Error
Warning	Warn
Information	Info
Verbose	Trace
Start	Debug
Stop	Debug
Suspend	Debug
Resume	Debug
Transfer	Debug

If you'd like to customize this translation table you can supply a Func<TraceEventType, LogLevel> to the extension above.

using NLog.Owin.Logging;
using NLog;
using System.Diagnostics;

public class Startup
{
	public void Configuration(IAppBuilder app)
	{
		// make a warning out of every log message!
		app.UseNLog((eventType) => LogLevel.Warn);
	}
}

Note / Information

(Added in version 1.1) Any EventId passed to this Microsoft.Owin.Logging.ILogger.WriteCore() implementation is passed down to NLog in the log event's properties, and can be written to output by adding the matching line in the Log appender layout:

${event-properties:item=EventId}

You can find more information about this topic in: https://github.com/NLog/NLog/wiki/EventProperties-Layout-Renderer

Help / Contribution

If you found a bug, please create an issue. Want to contribute? Create a pull request!