Sotsera.Blazor.Logging 0.1.1

Sotsera.Blazor.Logging

Blazor interop for the browser's console APIs.

It is a very simple ILogger implementation tied with a custom configuration source to allow the minimum LogLevel to be changed at runtime.

Configuration

The AddBlazorLogger extension method allows the logger to be added to the dependency injection system specifying the minimum log level to be shown in the browser console.

public class Program
{
    static void Main(string[] args)
    {
        var serviceProvider = new BrowserServiceProvider(services =>
        {
            services.AddBlazorLogger(() =>
            {
                return new BrowserUriHelper().GetBaseUri().StartsWith("http://localhost")
                    ? LogLevel.Debug
                    : LogLevel.Warning;
            });
        });

        new BrowserRenderer(serviceProvider).AddComponent<App>("app");
    }
}

Usage

@inject ILogger<Index> logger

@functions {
  protected override void OnInit()
  {
    logger.LogDebug("OnInit");
  }
}

Changing the minimum log level

The following snippet shows how to control the log level with a select box:

@inject ILogLevelManager manager

<select bind="manager.CurrentLevelName">
    @foreach (var level in manager.ValidLogLevels)
    {
        <option value=@level>@level</option>
    }
</select>