Session management service [cache based]

Scenario:

Create a Sign on service to allow creation of users in our app. Add data added details to session (Cache based)

Solution:

1. Add SessionServ



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public class SessionServ
{
    private readonly ISessionRepo _repo;

    public SessionServ(ISessionRepo repository)
    {
        _repo = repository;
    }


    public string StartSession(string sessionId)
    {
        sessInfo sessInfo;

        // if new sessionId not set
        sessInfo = new sessInfo(_repo.NewId());
        _repo.Update(sessInfo);
        sessInfo.SetCurrent(sessInfo);
        return sessInfo.SessionId;
    }

    public void StopSession()
    {
        if (sessInfo.IsInitialized)
        {
            _repo.Remove(sessInfo.Current);
        }
    }

    public sessInfo GetSession(string sessionId)
    {
        sessInfo sessInfo;

        if (!_repo.Find(sessionId, out sessInfo))
            throw exception;

        return sessInfo;
    }

    public void SaveSession(sessInfo sessInfo)
    {
        _repo.Update(sessInfo);
    }

    public void SetProperty(string name, string value)
    {
        if (sessInfo.IsInitialized)
        {
            sessInfo.Current.SetProperty(name, value);
        }
    }

    public string GetPropertyBySessionId(string sessionId, string name)
    {
        sessInfo sessInfo;
        return _repo.Find(sessionId, out sessInfo)
                   ? sessInfo.GetProperty(name)
                   : null;
    }

    public void RemoveProperty(string name)
    {
        if (sessInfo.IsInitialized)
        {
            sessInfo.Current.RemoveProperty(name);
        }
    }
}



2. Add CacheSesRepo



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public class CacheSesRepo : ISessionRepo
{
    private readonly ICache<sessInfo> _session;

    public CacheSesRepo([AppSettingsBinding(Name = "CacheServ")] ICacheSer cs)
    {
        _session = ..GetCache<sessInfo>(sessinfo);
    }

    private const string keypref = "_session_";

    public string NewId()
    {
        return Guid.NewGuid().ToString("N"); ;
    }

    public bool Find(string sessionId, out sessInfo sessInfo)
    {
        !_session.TryGet(GetCache(keypref + sessionId), out sessInfo);
    }

    public bool Update(sessInfo sessInfo)
    {
        _session.Add(cacheKey, sessInfo);
    }

    public bool Remove(sessInfo sessInfo)
    {
        _session.Remove(cacheKey);
    }
}



3. Add SessHttpModule 



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public class SessHttpModule : BaseHttpModule
{
    protected override void OnBeginRequest(HttpContext context, EventArgs e)
    {
        BeginSession(context);
    }

    protected override void OnEndRequest(HttpContext context, EventArgs e)
    {
        EndSession(context);
    }
}



4. Use session as below



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//Set _sessionServ.SetProperty(Constants.UserId, "123"); //Get var userId = _sessionServ.GetProperty(Constants.UserId);