Startup.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Traducir.Web.Net.ViewModels;

namespace Traducir.Web.Net
{
    public class Startup
    {
        //TODO: incorporate the relevant code from this class and remove this field (and the linked class file) when the Api project is deleted
        private readonly Api.Startup apiStartup;

        public Startup(IConfiguration configuration, IHostingEnvironment hostingEnvironment, ILoggerFactory loggerFactory)
        {
            Configuration = configuration;
            HostingEnvironment = hostingEnvironment;
            apiStartup = new Api.Startup(Configuration, HostingEnvironment, loggerFactory)
            {
                CookiePath = "/"
            };
        }

        public IConfiguration Configuration { get; }

        public IHostingEnvironment HostingEnvironment { get; }

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

            services.AddTransient(typeof(LayoutViewModel), typeof(LayoutViewModel));

            services.Configure<CookiePolicyOptions>(options =>
            {
                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                options.CheckConsentNeeded = context => false;
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });

            services
                .AddMvc()
                .SetCompatibilityVersion(CompatibilityVersion.Version_2_2)
                .AddViewOptions(options => options.HtmlHelperOptions.ClientValidationEnabled = false);

            services.AddHttpContextAccessor();
        }

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

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
                // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseStaticFiles();
            app.UseCookiePolicy();

            app.UseMvc();
            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}/{action=Index}/{id?}");
            });
        }
    }
}