birbmap/Birdmap.API/Middlewares/ExceptionHandlerMiddleware.cs

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using Birdmap.BLL.Exceptions;
using Microsoft.AspNetCore.Http;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using System;
using System.Net;
using System.Threading.Tasks;
namespace Birdmap.API.Middlewares
{
public class ExceptionHandlerMiddleware
{
private readonly RequestDelegate _next;
private readonly ILogger<ExceptionHandlerMiddleware> _logger;
public ExceptionHandlerMiddleware(RequestDelegate next, ILogger<ExceptionHandlerMiddleware> logger)
{
_next = next;
_logger = logger;
}
public async Task Invoke(HttpContext context)
{
try
{
await _next(context);
}
catch (Exception ex)
{
await HandleException(context, ex);
}
}
private Task HandleException(HttpContext context, Exception ex)
{
_logger.LogWarning(ex, "");
var code = ex switch
{
AuthenticationException _ => HttpStatusCode.Unauthorized,
EntityNotFoundException _ => HttpStatusCode.NotFound,
ArgumentException _ => HttpStatusCode.BadRequest,
DbUpdateConcurrencyException _ => HttpStatusCode.Conflict,
_ => HttpStatusCode.InternalServerError,
};
var result = JsonConvert.SerializeObject(new { error = ex.Message, exception = ex.ToString() });
context.Response.ContentType = "application/json";
context.Response.StatusCode = (int)code;
return context.Response.WriteAsync(result);
}
}
}