Startup.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using EcommerceStoreAPI.Config;
using EcommerceStoreAPI.Data.Contexts;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json.Serialization;

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

        public IConfiguration Configuration { get; }

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddDbContext<EcommerceContext>(options => options.UseSqlServer(Configuration.GetConnectionString("EcommerceDataBase")));
            services.AddControllers().AddNewtonsoftJson(s => s.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver());
            ServicesRegistration.AddRegistration(services);
        }

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {

            ApplicationRegistration.AddRegistration(app);

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseHttpsRedirection();

            app.UseRouting();

            app.UseAuthorization();

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