contact/Startup.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;


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


            // services.AddMvc();//.SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
        }

        // 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();
            }
            else
            {
                app.UseExceptionHandler("/Error");
                app.UseHsts();
            }

            //  app.UseHttpsRedirection();
            app.UseStaticFiles();
           // app.UseCookiePolicy();
            app.UseRouting();
            app.UseEndpoints(endpoints =>
                       {
                           endpoints.MapControllers();
                           endpoints.MapRazorPages();
           

                       });
            // app.UseMvc();
        }
    }
}