Startup.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using SchoolManagementSystem.Data;
using SchoolManagementSystem.Domain.Identity;
using Microsoft.AspNetCore.Identity;

namespace SchoolManagementSystem
{
    public class Startup
    {
        private readonly IConfiguration _configuration;

        public Startup(IConfiguration configuration)
        {
            _configuration = configuration;
        }
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddDbContextPool<SchoolMgmtContext>(dbContextOptions =>
            {
                dbContextOptions.UseSqlServer(_configuration.GetConnectionString("SchoolMgmtConStr"));
                
            });

            services.AddIdentity<ApplicationUser, ApplicationRole>()
                .AddEntityFrameworkStores<SchoolMgmtContext>()
                .AddDefaultTokenProviders();

            services.AddControllersWithViews();
        }

    
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseStaticFiles();
            app.UseRouting();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapDefaultControllerRoute();
            });
        }
    }
}