I have Middleware as below:

public class XChaCha20Poly1305EncryptionMiddleware : IMiddleware
{
    public async Task InvokeAsync(HttpContext context, RequestDelegate next)
    {
        var isEncryptionEnabled = context.GetEndpoint().Metadata.Any(m => m is XChaCha20Poly1305EncryptionAttribute);

        if(isEncryptionEnabled)
            Console.WriteLine("Test 1");
        else Console.WriteLine("Test 2");

        await next(context);
    }
}

And Program.cs:

services.AddTransient<XChaCha20Poly1305EncryptionMiddleware>();

services.AddControllersWithViews();

var app = builder.Build();
app.UseRouting();

app.UseMiddleware<XChaCha20Poly1305EncryptionMiddleware>();

But I always get exception that context.GetEndpoint() in middleware is null. I'm using NET 6. So how can I check method attributes in middleware? Is this now possible? I've used this HansElsen answer but it doesn't work for me:

My custom attribute

[AttributeUsage(AttributeTargets.Method, Inherited = false)]
public class EncryptionAttribute: Attribute
{

}

and my controller

[ApiController]
[Route("[controller]")]
public class WeatherForecastController : ControllerBase
{
    private static readonly string[] Summaries = new[]
    {
        "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
    };

    private readonly ILogger<WeatherForecastController> _logger;

    public WeatherForecastController(ILogger<WeatherForecastController> logger)
    {
        _logger = logger;
    }

    [HttpGet(Name = "GetWeatherForecast")]
    [Encryption]
    public IEnumerable<WeatherForecast> Get()
    {
        return Enumerable.Range(1, 5).Select(index => new WeatherForecast
        {
            Date = DateTime.Now.AddDays(index),
            TemperatureC = Random.Shared.Next(-20, 55),
            Summary = Summaries[Random.Shared.Next(Summaries.Length)]
        })
        .ToArray();
    }
}