esiur-dotnet/Esiur.ASPNet/Program.cs

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.UseWebSockets();

app.Use(async (context, next) =>
{
    if (context.Request.Path == "/esiur")
    {
        if (context.WebSockets.IsWebSocketRequest)
        {
            using var webSocket = await context.WebSockets.AcceptWebSocketAsync();
         }
        else
        {
            context.Response.StatusCode = StatusCodes.Status400BadRequest;
        }
    }
    else
    {
        await next(context);
    }

});


app.Run();