namespace MediaCenter
{
    public class Startup
    {
        public Startup(IHostingEnvironment env)
        {
            var builder = new ConfigurationBuilder()
                .SetBasePath(env.ContentRootPath)
                .AddEnvironmentVariables()
                .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
                .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true);

            // Set the new Configuration
            Configuration = builder.Build();
        }

        public IConfiguration Configuration { get; set;  }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddMvc()
                .AddJsonOptions(config =>
                {
                    config.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
                });
            services.AddOptions();
            services.AddSingleton<IConfiguration>(Configuration);


        }

        // 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.UseBrowserLink();
                app.UseDeveloperExceptionPage();

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

            app.UseStaticFiles();

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


        }
    }
}


my startuo.cs


namespace MediaCenter.Controllers
{
    public class HomeController : Controller
    {
        private IConfiguration _configuration;

        public HomeController(IConfiguration configuration)
        {
            _configuration = configuration;
        }

        public IActionResult Index()
        {
            return View();
        }

        public IActionResult Settings()
        {

            var array =_configuration.GetSection("Locations:Location").GetChildren()
                .Select(configsection => configsection.Value);


            return View();
        }

    }
}


my controller