GELF logging library for Microsoft.Extensions.Logging

Suppported transport today is only UDP and chunking or compressing of logs is not supported. Maximum log size supported is 8192 bytes.

Integrate into Microsoft.Extensions.Logging

To add logger to WebHostBuilder

.ConfigureLogging((hostingContext, logging) =>
{
    logging.ClearProviders();
    logging.AddRinsenGelfLogger();
}

In ConfigureServices add the following code

public void ConfigureServices(IServiceCollection services)
{
  services.AddRinsenGelf(options =>
  {
    options.GelfServiceHostName = "server.hostname";
    options.GelfServicePort = 12201;
    options.ApplicationName = "MyApplicationName";
  });
}

Raw publish

It is also possible to publish raw messages coming via an API for example

Inject the following interface to class that should publish logs

public interface IGelfPublisher
{
    void Send(string shortMessage, string? fullMessage, GelfLogLevel logLevel, Dictionary<string, object> additionalFields);
}

BackgroundService example

public class Worker : BackgroundService
{
    private readonly ILogger<Worker> _logger;
    private readonly IGelfPublisher _gelfPublisher;

    public Worker(ILogger<Worker> logger,
        IGelfPublisher gelfPublisher)
    {
        _logger = logger;
        _gelfPublisher = gelfPublisher;
    }

    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
    {
        while (!stoppingToken.IsCancellationRequested)
        {
            _logger.LogInformation("Worker running at: {time}", DateTimeOffset.Now);

            _gelfPublisher.Send($"Hello from worker at: {DateTimeOffset.Now}", null, GelfLogLevel.Error, null);

            await Task.Delay(100, stoppingToken);
        }
    }
}