How do I access HttpContext in Server-side Blazor?

Question

I need to access HttpContext in a page (.cshtml) and in particular a request and then a cookie. Despite available, HttpContextAccessor always has

Answer 1

blazor.Sever to Startup.cs

public void ConfigureServices(IServiceCollection services)
{
    services.AddServerSideBlazor();

    // HttpContextAccessor
    services.AddHttpContextAccessor();
    services.AddScoped();
}

blazor.Shared

public class HttpContextAccessor
{
   private readonly IHttpContextAccessor _httpContextAccessor;

   public HttpContextAccessor(IHttpContextAccessor httpContextAccessor)
   {
        _httpContextAccessor = httpContextAccessor;
   }

   public HttpContext Context => _httpContextAccessor.HttpContext;
}

blazor.Client to App.cshtml

@inject blazor.Shared.HttpContextAccessor HttpContext


@functions 
{      
    protected override void OnInit()
    {
       HttpContext.Context.Request.Cookies.**

       // Or data passed through middleware in blazor.Server
       HttpContext.Context.Features.Get()
    }
}

Credits: https://github.com/aspnet/Blazor/issues/1554