How to use Session in dot net core ?
I wanted to use session tag to store the user id and username when a user is logged in. I am using .net core version 3.1 I have created an Account Controller and in the Login(Post Method) I am trying to use session tag. Here is the Login Method in AccountController.cs
//POST Login
[HttpPost]
[ValidateAntiForgeryToken]
public IActionResult Login(Account user)
{
if(ModelState.IsValid)
{
var obj = _db.Accounts.Where(u => u.Name.Equals(user.Name) && u.Password.Equals(user.Password)).FirstOrDefault();
if(obj != null)
{
Session["Id"] = obj.Id.ToString(); // Error : The name 'Session' does not exist in the current context
Session["Name"] = obj.Name.ToString(); // Error : The name 'Session' does not exist in the current context
return RedirectToAction("Index", "Home");
}
}
return View(user);
}
I have also used services.AddSession() in ConfigureServices and app.UseSession() in Configure in Startup.cs file Configure Services in Startup.cs
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext<ApplicationDbContext>(options =>
options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection"))
);
services.AddControllersWithViews();
services.AddDistributedMemoryCache();
services.AddSession(options => {
options.IdleTimeout = TimeSpan.FromMinutes(10);
});
}
Configure in Startup.cs
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseExceptionHandler("/Home/Error");
// The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
//app.UseAuthentication();
app.UseAuthorization();
app.UseSession();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllerRoute(
name: "default",
pattern: "{controller=Home}/{action=Index}/{id?}");
});
}
How do I fix this issue?
CodePudding user response:
You could use something like this:
if(obj != null)
{
const string userId = "_UserId";
const string userName = "_UserName";
HttpContext.Session.SetString(userId, obj.Id.ToString());
HttpContext.Session.SetString(userName, obj.Name.ToString());
return RedirectToAction("Index", "Home");
}
You can use this to get it:
const string userId = "_UserId";
const string userName = "_UserName";
string user = httpContext.Session.GetString(userId);
string name = httpContext.Session.GetString(userName);
Edit #1: TY @Dharman. (copy/pasted TS with tabs/spaces)
CodePudding user response:
To setup your Session
in .NET CORE, you can refer to this S.O answer. Now regarding your question on clearing the Session
, you can do this:
HttpContext.Session.Clear();
You can read more on the MSDN