serilog – Page 2 – Tarik Billa

Serilog – Output/Enrich All Messages with MethodName from which log entry was Called

September 9, 2023 by Tarik

in case you need a version in C#: public static class LoggerExtensions { public static ILogger Here(this ILogger logger, [CallerMemberName] string memberName = “”, [CallerFilePath] string sourceFilePath = “”, [CallerLineNumber] int sourceLineNumber = 0) { return logger .ForContext(“MemberName”, memberName) .ForContext(“FilePath”, sourceFilePath) .ForContext(“LineNumber”, sourceLineNumber); } } use like this: // at the beginning of the class … Read more

Solving error – Unable to resolve service for type ‘Serilog.ILogger’

September 6, 2023 by Tarik

Try to do following thing in your controller. ILogger<HomeController> logger = null; public HomeController(ILogger<HomeController> _logger) { logger = _logger; }

Exception destructuring in Serilog

August 21, 2023 by Tarik

Take a look at Serilog.Exceptions logs exception details and custom properties that are not output in Exception.ToString(). This library has custom code to deal with extra properties on most common exception types and only falls back to using reflection to get the extra information if the exception is not supported by Serilog.Exceptions internally. Add the … Read more

Which Serilog sink to use for sending to Logstash?

August 21, 2023 by Tarik

The accepted answer was written before the sink Serilog.Sinks.Http existed. Instead of logging to file and having Filebeat monitoring it, one could have the HTTP sink post log events to the Logstash HTTP input plugin. This would mean fewer moving parts on the instances where the logs where created.

Add Username into Serilog

August 11, 2023 by Tarik

You can create a middleware to put required property to LogContext. public class LogUserNameMiddleware { private readonly RequestDelegate next; public LogUserNameMiddleware(RequestDelegate next) { this.next = next; } public Task Invoke(HttpContext context) { LogContext.PushProperty(“UserName”, context.User.Identity.Name); return next(context); } } Also you need to add the following to your logger configuration: .Enrich.FromLogContext() In Startup add the middleware … Read more

Different Minimum Level Logs Serilog

August 8, 2023 by Tarik

The setting you’re looking for is restrictedToMinimumLevel. This GitHub issue shows some examples of this, but for your example, you just need to add restrictedToMinimumLevel to your Args for RollingFile: “Serilog”: { “Using”: [ “Serilog.Sinks.Console” ], “MinimumLevel”: “Debug”, “WriteTo”: [ { “Name”: “RollingFile”, “IsJson”: true, “Args”: { “pathFormat”: “C:\\Logs\\Log-{Hour}.json”, “formatter”: “Serilog.Formatting.Json.JsonFormatter, Serilog”, “restrictedToMinimumLevel”: “Warning” } … Read more

Add custom properties to Serilog

July 23, 2023 by Tarik

This is as simple as: Log.ForContext(“BirthDate”, person.BirthDate) .Information(“New user: {FirstName:l} {LastName:l}”, person.FirstName, person.LastName);

Serilog’s AddSerilog is not recognized

July 19, 2023 by Tarik

You may forget this following line in project.json “Serilog.Extensions.Logging”: “1.0.0”, See also https://carlos.mendible.com/2016/09/19/step-step-serilog-asp-net-core/

Serilog RollingFile

May 30, 2023 by Tarik

Try below: var log = new LoggerConfiguration() .MinimumLevel.Debug() .WriteTo.File(@”f:\log\log.txt”, rollingInterval: RollingInterval.Day) .CreateLogger(); The log file name will be automatically log-20150819.txt etc. You do not need to specify the date.Old files will be cleaned up as per retainedFileCountLimit – default is 31.

Use Serilog with Microsoft.Extensions.Logging.ILogger

April 21, 2023 by Tarik

In the Serilog.Extensions.Logging assembly there is a extension method on IloggingBuilder called AddSerilog (it’s in the Serilog namespace) that will allow you to use Serilog for logging. For example: .NET Core 2.2 and earlier (using WebHost): WebHost.CreateDefaultBuilder(args) .ConfigureLogging(logging => { logging.ClearProviders(); logging.AddSerilog(); }); .NET Core 3.1 and later (using generic Host for either web or … Read more