IFormFile 的 Asp.Net Core swagger 帮助页面

我正在尝试设置 swagger 来测试具有 IFormFile 属性的模型。 例如我有下一个 api 方法

[HttpPost]
public ApiResult<UserModel> SaveTestFileData([FromForm]TestPostFileArgs args)
{
    var result = new UserModel() { Id = 1, Name = $"SaveTestFileData {args.UserId} company: {args.CompanyId}, file length: {args.CompanyFile.Length}" };
    return ApiResult.Success(result);
}

还有我的参数模型

public class TestPostFileArgs
{
    public int UserId { get; set; }
    public int? CompanyId { get; set; }
    public IFormFile CompanyFile { get; set; }
}

By default swagger generate help page which does not allow to test it To solve this problem I wrote next OperationFilter

public class FormFileOperationFilter: IOperationFilter
{
    public void Apply(Operation operation, OperationFilterContext context)
    {
        if (operation.Parameters == null)
            return;

        var fileParamNames = context.ApiDescription.ActionDescriptor.Parameters
            .SelectMany(x => x.ParameterType.GetProperties())
            .Where(x => x.PropertyType.IsAssignableFrom(typeof (IFormFile)))
            .Select(x => x.Name)
            .ToList();
        if (!fileParamNames.Any())
            return;

        var paramsToRemove = new List<IParameter>();
        foreach (var param in operation.Parameters)
        {
            paramsToRemove.AddRange(from fileParamName in fileParamNames where param.Name.StartsWith(fileParamName + ".") select param);
        }
        paramsToRemove.ForEach(x => operation.Parameters.Remove(x));
        foreach (var paramName in fileParamNames)
        {
            var fileParam = new NonBodyParameter
                {
                    Type = "file",
                    Name = paramName,
                    In = "formData"
                };
            operation.Parameters.Add(fileParam);
        }
        foreach (IParameter param in operation.Parameters)
        {
            param.In = "formData";
        }

        operation.Consumes = new List<string>() { "multipart/form-data" };
    }
}

And after this everething works as I expect from swagger.

目前这个解决方案对我有用，但感觉不对。也许我缺少一些简单的解决方案。此外，此方法不使用 IFormFile 或其他方式处理 List 或复杂对象属性。

对于 ASP.NET Core 开发人员，Swashbuckle.AspNetCore GitHub 存储库中为此写了一个问题：https://github.com/domaindrivendev/Swashbuckle.AspNetCore/issues/193 https://github.com/domaindrivendev/Swashbuckle.AspNetCore/issues/193。它在评论中也有一些用于操作过滤器的工作代码——其中一个对我来说比这个问题中的其他代码更有效。