ASP.NET CORE Redirect inside the constructor

Question

I am developing a web project using asp.net core 7 and razor pages. I'm dealing with a routing issue. In the Controller, I check whether the user is logged into each method. I think this does not comply with the DRY principle and I try to write clean code as much as I can. I thought about moving this control to the constructor, but I cannot use redirect in the constructor. Is there any way to do this?

Answer 1

I found a different solution to this problem.

Here I added this to the Configure method of the Startup.cs file

app.UseSession();

app.Use(async (context, next) =>
{
    string CurrentUserIDSession = context.Session.GetString("userToken");
    if (!context.Request.Path.Value.Contains("/User/Login"))
    {
        if (string.IsNullOrEmpty(CurrentUserIDSession))
        {
            var path = $"/User/Login?ReturnUrl={context.Request.Path}";
            context.Response.Redirect(path);
            return;
        }

    }
    await next();
});