ClubPenguinServer/MareSynchronosServer/MareSynchronosServer/Utils/IdBasedUserIdProvider.cs

using System.Linq;
using System.Security.Claims;
using Microsoft.AspNetCore.SignalR;

namespace MareSynchronosServer.Utils;

public class IdBasedUserIdProvider : IUserIdProvider
{
    public string GetUserId(HubConnectionContext context)
    {
        return context.User!.Claims.SingleOrDefault(c => string.Equals(c.Type, ClaimTypes.NameIdentifier, System.StringComparison.Ordinal))?.Value;
    }
}