[英]Async Action Filter not working. ASP.NET Core Web Api
I have created custom 'ValidationFilter' in order to validate request before it reaches controller, there it is:我创建了自定义“ValidationFilter”,以便在请求到达控制器之前对其进行验证,它是:
ValidationFilter class验证过滤器类
using Contracts.ViewModels;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
namespace Middleware.Filters
{
public class ValidationFilter : IAsyncActionFilter
{
public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)
{
if (!context.ModelState.IsValid)
{
#pragma warning disable CS8602 // Dereference of a possibly null reference.
var errorsInModelState = context.ModelState
.Where(o => o.Value.Errors.Count > 0)
.ToDictionary(kvp => kvp.Key, kvp => kvp.Value.Errors.Select(o => o.ErrorMessage)).ToArray();
#pragma warning restore CS8602 // Dereference of a possibly null reference.
var errorResponse = new ErrorResponse();
foreach(var error in errorsInModelState)
{
foreach(var subError in error.Value)
{
var errorModel = new ErrorModel
{
FieldName = error.Key,
Message = subError
};
errorResponse.Errors.Add(errorModel);
}
}
context.Result = new BadRequestObjectResult(errorResponse);
return;
}
await next();
}
}
}
There is simple Validator for request:请求有简单的验证器:
using Contracts;
using FluentValidation;
namespace Middleware.Validators
{
public class AddressingDtoValidator : AbstractValidator<AddressingDto>
{
public AddressingDtoValidator()
{
RuleFor(x => x.District)
.NotNull()
.NotEmpty()
.Matches("^[a-zA-Z0-9 ]*$");
RuleFor(x => x.Mr)
.NotNull()
.NotEmpty()
.Matches("^[a-zA-Z0-9 ]*$");
RuleFor(x => x.Quarter)
.NotNull()
.NotEmpty()
.Matches("^[a-zA-Z0-9 ]*$");
RuleFor(x => x.Street)
.NotNull()
.NotEmpty()
.Matches("^[a-zA-Z0-9 ]*$");
RuleFor(x => x.Building)
.NotNull()
.NotEmpty()
.Matches("^[a-zA-Z0-9 ]*$");
RuleFor(x => x.Corpus)
.NotNull()
.NotEmpty()
.Matches("^[a-zA-Z0-9 ]*$");
RuleFor(x => x.Building)
.NotNull()
.NotEmpty()
.Matches("^[a-zA-Z0-9 ]*$");
RuleFor(x => x.InstitutionName)
.NotNull()
.NotEmpty()
.Matches("^[a-zA-Z0-9 ]*$");
}
}
}
I have also "ErrorModel" and "ErrorResponse" classes which you can see below and my goal is to display error using this class but somemwhy it doesn't work:我也有“ErrorModel”和“ErrorResponse”类,你可以在下面看到,我的目标是使用这个类显示错误,但是为什么它不起作用:
ErrorModel错误模型
namespace Contracts.ViewModels
{
public class ErrorModel
{
public string? FieldName { get; set; }
public string? Message { get; set; }
}
}
ErrorResponse class错误响应类
namespace Contracts.ViewModels
{
public class ErrorResponse
{
public List<ErrorModel> Errors { get; set; } = new List<ErrorModel>();
}
}
I want the error to be displayed like this:我希望错误显示如下:
{
"errors": [
{
"fieldname": "....",
"message": "...."
}
]
}
but instead, i get something like that:但相反,我得到了类似的东西:
{
"type": "https://tools.ietf.org/html/rfc7231#section-6.5.1",
"title": "One or more validation errors occurred.",
"status": 400,
"traceId": "00-b9157268dc1f793004182694c1acf1a7-67fd063ebec5cbc3-00",
"errors": {
"Quarter": [
"'Quarter' must not be empty."
]
}
}
I mean this type of error is understandable and okay to read but i am practicing with action filters and something is not working.我的意思是这种类型的错误是可以理解的并且可以阅读,但是我正在练习使用动作过滤器并且某些东西不起作用。
There is also Program.cs class where i inject this validator in pipeline:还有一个Program.cs类,我在管道中注入了这个验证器:
builder.Services.AddControllers(options =>
{
options.Filters.Add<ValidationFilter>();
})
.AddFluentValidation(configuration => configuration.RegisterValidatorsFromAssemblyContaining<AddressingDtoValidator>());
So what could be the problem, am i missing something?那么可能是什么问题,我错过了什么吗?
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.