Startup.cs

using AttendanceRegister2.ApplicationDbContex;
using AttendanceRegister2.HelperClass;
using AttendanceRegister2.Model;
using AttendanceRegister2.Services;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Microsoft.OpenApi.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace AttendanceRegister2
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {

            services.AddDbContext<ApplicationDbContext>(options =>
               options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection"), builder => {
                   builder.EnableRetryOnFailure(5, TimeSpan.FromSeconds(10), null);

            })
           );

            services.ConfigureJWT(Configuration);
            services.AddScoped<IFileStorageService, InAppStorageService>();
            services.AddScoped<IAuthManager, AuthManager>();

            services.AddHttpContextAccessor();

            services.Configure<DataProtectionTokenProviderOptions>(options =>
            {
                options.TokenLifespan = TimeSpan.FromHours(2);
            });

            services.AddIdentity<StaffModel, IdentityRole>()
                .AddEntityFrameworkStores<ApplicationDbContext>()
                .AddDefaultTokenProviders();

            services.AddAutoMapper(typeof(Startup));
            
            services.AddControllers();
            services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc("v1", new OpenApiInfo
                { Title = "AttendanceRegister2",
                    Version = "v1" 
                });
                c.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme()
                {
                    Name = "Authorization",
                    Type = SecuritySchemeType.ApiKey,
                    Scheme = "Bearer",
                    BearerFormat = "JWT",
                    In = ParameterLocation.Header,
                    Description = "Enter 'Bearer' [space] and then your valid token in the text input below.\r\n\r\nExample: \"Bearer aksjakjsakjsakjsakjsak\""
                });
                c.AddSecurityRequirement(new OpenApiSecurityRequirement
                {
                    {
                        new OpenApiSecurityScheme
                        {
                            Reference = new OpenApiReference
                            {
                                Type = ReferenceType.SecurityScheme,
                                Id = "Bearer"
                            }
                        }
                        , new string[]{ }
                    }
                });
            });
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)//, ApplicationDbContext applicationDbContext)
        {
           // applicationDbContext.Database.Migrate();


            if (env.IsDevelopment())
            {  
                app.UseDeveloperExceptionPage();
                app.UseSwagger();
                app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "AttendanceRegister2 v1"));
            }

            app.UseHttpsRedirection();

            app.UseStaticFiles();

            app.UseRouting();

            app.UseAuthentication();

            app.UseAuthorization();

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