Startup.cs

using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Primitives;
using Microsoft.IdentityModel.Tokens;

using System.IO;
using System.Text;
using System.Threading.Tasks;

namespace MainService
{
    public class Startup
    {
        public Startup()
        {
  
        }



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

            var appConfiguration = new ConfigurationBuilder()
                .SetBasePath(Directory.GetCurrentDirectory())
                .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
                .Build();

            services.AddOptions();
           
            services.AddLogging(X => X.AddDebug());
            services.AddLogging(X => X.AddConsole());


            var appServiceProvider = services.BuildServiceProvider();




            services.AddCors(options =>
            {
                options.AddPolicy("CorsPolicy",
                    builder => builder.AllowAnyOrigin() //vediamo poi come restringere
                    .AllowAnyMethod()
                    .AllowAnyHeader()
                    .AllowCredentials());
            });

            services.AddMvc();


        }

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

            }
            app.UseAuthentication();
            app.UseCors("CorsPolicy");

            app.UseMvc();

         

        }
    }
}