Startup.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using AutoMapper;
using CheerMeApp.Data;
using CheerMeApp.Installers;
using CheerMeApp.Models;
using CheerMeApp.Options;
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;

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

        public IConfiguration Configuration { get; }
        private const string CorsPolicy = "CorsPolicy";

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

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            var swaggerOptions = new SwaggerOptions();
            Configuration.GetSection(nameof(SwaggerOptions)).Bind(swaggerOptions);

            app.UseSwagger(options => { options.RouteTemplate = swaggerOptions.JsonRoute; });

            app.UseSwaggerUI(options =>
            {
                options.SwaggerEndpoint(swaggerOptions.UiEndPoint, swaggerOptions.Description);
            });
            app.UseAuthentication();

            app.UseHttpsRedirection();

            app.UseRouting();

            app.UseCors(CorsPolicy);

            app.UseAuthorization();

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