// This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);

            // In production, the React files will be served from this directory
            services.AddSpaStaticFiles(configuration =>
            {
                configuration.RootPath = "ClientApp/build";
            });
            services.AddSingleton <IPersonDB, PersonDB>((ctx) => {
                var storageKey  = File.ReadAllText(@".\storage.credentials");
                var storageName = "mygenealogie";
                var db          = PersonDB.LoadSaveJsonDB(storageName, storageKey);
                return(db);
            });
        }