namespace ChatApi { public class SessionIdStore { HttpContext _context; public SessionIdStore(HttpContext httpContext) { _context = httpContext; } public string GetSessionId() { var sessionId = _context.Request.Cookies["ChatSessionId"]; if (sessionId == null) { sessionId = Guid.NewGuid().ToString("N"); _context.Response.Cookies.Append("ChatSessionId", sessionId, new CookieOptions { Expires = DateTimeOffset.Now.AddMonths(12), HttpOnly = true, SameSite = SameSiteMode.None, Secure = true }); } return sessionId; } } }