parr_api/PARR.API/Installers/CorsInstaller.cs

using PARR.API.Settings;

namespace PARR.API.Installers
{
    public static class CorsInstaller
    {
        public static void InstallCorsServices(this IServiceCollection services)
        {
            services.AddCors();
        }

        public static void InstallCors(this WebApplication app, WebApplicationBuilder builder)
        {
            var corsSettings = new CorsSettings();
            builder.Configuration.GetSection(nameof(CorsSettings)).Bind(corsSettings);

            app.UseCors(opt =>
                opt.WithOrigins(corsSettings.AllowHostsArray)
                    .AllowAnyHeader()
                    .AllowAnyMethod()
            );
        }

    }
}