Nancy plugin for application-wide logging using the Serilog logging framework.
This library is experiemental
Install it from Nuget:
Install-Package Nancy.Serilog
Enable logging from your Bootstrapper at ApplicationStartup, this block is a good place to configure actual logger.
using Nancy.Serilog;
// ...
class CustomBootstrapper : DefaultNancyBootstrapper
{
protected override void ApplicationStartup(TinyIoCContainer container, IPipelines pipelines)
{
pipelines.EnableSerilog();
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Information()
.WriteTo.Console(new JsonFormatter())
.CreateLogger()
}
}Now data from your requests will be logged when receiving requests and when returing responses:
public class Index : NancyModule
{
public Index()
{
Get["/"] = args => "Hello Serilog";
}
}Without doing any extra configuration, navigating to / (root) will be logged: In the following screenshot I am using a self-hosted Nancy app (the sample of this repo).
Ofcourse, this is not human-readable because of console-json combo we are using as the sink. But Serilog has countless other sinks, one of which is Seq which I am starting to really like for local developement where you can browse log data easily:
Also notice how the two logs are correlated using RequestId property. This is how you find logs coming from a single request. To enable this correlation, you cannot use the globally shared ILogger (i.e. from Log.Something) because you want to use a logger bound to the request context: Nancy.Serilog provides an extension method CreateLogger() you can call from your NancyModule like this:
Post["/hello/{user}"] = args =>
{
var logger = this.CreateLogger();
var user = (string)args.user;
logger.Information("{User} Logged In", user);
return $"Hello {user}";
};Then POSTing some data from Postman will give us the following:
