The backendUrl property (string) specifies the URL of the integrated server-side backend (ASP.NET MVC, Java versions).
DayPilot.Calendar.backendUrlnullThis property is used by the integrated server-side backend in the ASP.NET MVC and Java editions.
const calendar = new DayPilot.Calendar("dp", {
backendUrl: "/backend/calendar",
// ...
});
calendar.init();