public static IApplicationBuilder UseStatusCodePagesConfiguration(this IApplicationBuilder app)
{
app.UseStatusCodePages(async context =>
{
var req = context.HttpContext.Request;
var res = context.HttpContext.Response;
res.ContentType = "application/json";
switch (res.StatusCode)
{
case (int)HttpStatusCode.Unauthorized:
await res.WriteAsync(SerializationHelper.SerializeToJson(ErrorDto.DefaultUnauthorizedResponse()));
break;
case (int)HttpStatusCode.Forbidden:
await res.WriteAsync(SerializationHelper.SerializeToJson(ErrorDto.DefaultForbiddenResponse()));
break;
case (int)HttpStatusCode.NotFound:
await res.WriteAsync(SerializationHelper.SerializeToJson(ErrorDto.DefaultNotFoundResponse()));
break;
case (int)HttpStatusCode.BadRequest:
await res.WriteAsync(SerializationHelper.SerializeToJson(ErrorDto.DefaultBadRequestResponse()));
break;
case (int)HttpStatusCode.MethodNotAllowed:
await res.WriteAsync(SerializationHelper.SerializeToJson(ErrorDto.DefaultMethodNotAllowedResponse()));
break;
case (int)HttpStatusCode.RequestTimeout:
await res.WriteAsync(SerializationHelper.SerializeToJson(ErrorDto.DefaultRequestTimeoutResponse()));
break;
case (int)HttpStatusCode.InternalServerError:
await res.WriteAsync(SerializationHelper.SerializeToJson(ErrorDto.DefaultInternalServerErrorResponse()));
break;
default:
await res.WriteAsync(SerializationHelper.SerializeToJson(ErrorDto.DefaultInternalServerErrorResponse()));
break;
}
});
return(app);
}
private Task HandleExceptionAsync(HttpContext httpContext, Exception exception)
{
var response = default(ErrorDto);
httpContext.Response.ContentType = "application/json";
if (exception is ApiException)
{
var ex = (exception as ApiException);
httpContext.Response.StatusCode = ex.Code;
response = new ErrorDto(ex.Name, ex.Message, ex.Code);
}
else if (exception is ArgumentNullException || exception is ArgumentException)
{
httpContext.Response.StatusCode = (int)HttpStatusCode.BadRequest;
response = ErrorDto.DefaultBadRequestResponse();
}
else if (exception is ValidationException)
{
httpContext.Response.StatusCode = (int)HttpStatusCode.BadRequest;
response = ErrorDto.DefaultBadRequestResponse();
response.Details = (exception as ValidationException).Errors
.Select(x => new ErrorFieldDto(field: x.PropertyName, value: x.ErrorMessage));
}
else
{
httpContext.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
response = ErrorDto.DefaultInternalServerErrorResponse();
}
if (!(exception is ApiException))
{
if (!response.Details.Any() && exception.GetInnerExceptions().Any())
{
response.Details = exception.GetInnerExceptions()
.Select(x => new ErrorFieldDto(field: null, value: x.Message))
.ToList();
}
}
_logger.LogError(exception, response.Message);
return(httpContext.Response.WriteAsync(SerializationHelper.SerializeToJson(response)));
}