c# - OnAuthorizationAsync 中的取消 token

Question

我有以下代码:

public class AuthorizeRolesAttribute : TypeFilterAttribute
{
    public AuthorizeRolesAttribute() : base(typeof(AuthorizeRolesFilter))
    {

    }

    public class AuthorizeRolesFilter : IAsyncAuthorizationFilter
    {
        public virtual async Task OnAuthorizationAsync(AuthorizationFilterContext context)
        {

        }
    }
}

我想使用取消 token ，所以我尝试像这样覆盖它:

public async override Task OnAuthorizationAsync(AuthorizationFilterContext context, CancellationToken ct)
{
}

但我不断收到此错误:

No suitable method found to override

Answer 1

只需从 HttpContext 获取您的 CancellationToken .

public Task OnAuthorizationAsync(AuthorizationFilterContext context)
{
    var cancellationToken = context.HttpContext.RequestAborted;
    ...
}