nlog in .net core

Here, I am trying to make the logging with nlog simple

step 1. install required packages (Console/UI layer)

Install-Package NLog.Extensions.Logging -Version 1.6.1
//And
Install-Package NLog.Web.AspNetCore -Version 4.9.0

step 2. In your console project at root , create nlog.config (add-->new item-->web configuration file) name it as nlog.config and paste below code

"1.0" encoding="utf-8"?>
"http://www.nlog-project.org/schemas/NLog.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
autoReload="true"
internalLogLevel="Info">
"NLog.Web.AspNetCore"/>
"File" name="allfile" fileName="1nlog-sharpencode-${shortdate}.log"
layout="${longdate}|${event-properties:item=EventId_Id}|${uppercase:${level}}|${logger}|${message} ${exception:format=tostring}" />
"*" minlevel="Trace" writeTo="allfile" />

now, suppose you have 2 layers BLL and DAL, add those to the DI container, after creating the container as follow

class Program
{
static void Main(string[] args)
{
var services = new ServiceCollection();
ConfigureServices(services);
using (ServiceProvider serviceProvider = services.BuildServiceProvider())
{
MyDAL app = serviceProvider.GetService();
MyBLL app1 = serviceProvider.GetService();
app.Run();
}
}
private static void ConfigureServices(ServiceCollection services)
{
services.AddTransient();
services.AddTransient();
services.AddLogging(builder =>
{
builder.SetMinimumLevel(LogLevel.Information);
builder.AddNLog("nlog.config");
});
}
}

now, use to log in BLL/DAL as

using Microsoft.Extensions.Logging;
using System;
namespace YourNamespace
{
public class MyDAL
{
private readonly ILogger _logger;
public MyDAL(ILogger logger)
{
_logger = logger;
}
public void Method()
{
try
{
// save here
}
catch(exception ex)
{
_logger.LogInformation(ex.ToString());
}
}
}
}

4 Replies

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Sachin Singh5y ago
Accepted answer
Here, I am trying to make the logging with nlog simple
step 1. install required packages (Console/UI layer)
Install-Package NLog.Extensions.Logging -Version 1.6.1

//And

Install-Package NLog.Web.AspNetCore -Version 4.9.0
step 2. In your console project at root , create nlog.config (add-->new item-->web configuration file) name it as nlog.config and paste below code
"1.0" encoding="utf-8"?>


  "http://www.nlog-project.org/schemas/NLog.xsd"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        autoReload="true"
        internalLogLevel="Info">



      "NLog.Web.AspNetCore"/>





      "File" name="allfile" fileName="1nlog-sharpencode-${shortdate}.log"
              layout="${longdate}|${event-properties:item=EventId_Id}|${uppercase:${level}}|${logger}|${message} ${exception:format=tostring}" />





      "*" minlevel="Trace" writeTo="allfile" />




now, suppose you have 2 layers BLL and DAL, add those to the DI container, after creating the container as follow
class Program
    {
        static void Main(string[] args)
        {
            var services = new ServiceCollection();
            ConfigureServices(services);

            using (ServiceProvider serviceProvider = services.BuildServiceProvider())
            {
                MyDAL app = serviceProvider.GetService();
              MyBLL app1 = serviceProvider.GetService();
                app.Run();
            }
        }

        private static void ConfigureServices(ServiceCollection services)
        {
            services.AddTransient();
            services.AddTransient();

            services.AddLogging(builder =>
             {
                 builder.SetMinimumLevel(LogLevel.Information);
                 builder.AddNLog("nlog.config");
             });

        }
    }
now, use to log in BLL/DAL as
using Microsoft.Extensions.Logging;
using System;

namespace YourNamespace
{
    public class MyDAL
    {
        private readonly ILogger _logger;
        public MyDAL(ILogger logger)
        {
            _logger = logger;
        }

        public void Method()
        {
  try
{
// save here
}
catch(exception ex)
{
    _logger.LogInformation(ex.ToString());
}



        }
    }
}
+1
Ganesan C5y ago
Hi,

Please refer below links.
https://github.com/NLog/NLog/wiki/Getting-started-with-ASP.NET-Core-3
https://www.c-sharpcorner.com/article/introduction-to-nlog-with-asp-net-core2/
https://hackernoon.com/integrating-logging-using-nlog-in-aspnet-core-30-web-app-6f1v31be
https://codewithmukesh.com/blog/logging-with-nlog-in-aspnet-core/
+1
Sachin Singh5y ago
for using nlog in a console app, follow the below article
https://dev.to/satish/using-nlog-in-a-net-5-console-application-with-dependency-injection-52mm
+1
Shweta Lodha5y ago
Hello Aniket,
Please check this out:
https://www.c-sharpcorner.com/article/introduction-to-nlog-with-asp-net-core2/
+1