Shogi/Gameboard.ShogiUI.Sockets/Extensions/LogMiddleware.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using System.Threading.Tasks;

namespace Gameboard.ShogiUI.Sockets.Extensions
{
  public class LogMiddleware
  {
    private readonly RequestDelegate next;
    private readonly ILogger logger;

    public LogMiddleware(RequestDelegate next, ILoggerFactory factory)
    {
      this.next = next;
      logger = factory.CreateLogger<LogMiddleware>();
    }

    public async Task Invoke(HttpContext context)
    {
      try
      {
        await next(context);
      }
      finally
      {
        logger.LogInformation("Request {method} {url} => {statusCode}",
            context.Request?.Method,
            context.Request?.Path.Value,
            context.Response?.StatusCode);
      }
    }
  }

  public static class IApplicationBuilderExtensions
  {
    public static IApplicationBuilder UseRequestResponseLogging(this IApplicationBuilder builder)
    {
      builder.UseMiddleware<LogMiddleware>();
      return builder;
    }
  }
}