Build a check-in app

Your scanner reads a ticket ID. Your backend asks Eventlayer to check it in.

Use an assigned test ticket. Check-in is one-time and cannot be undone.

Check in the ticket

Authenticate staff and confirm the ticket belongs at this door before making the call. Keep your API key on the backend.

import { Eventlayer } from "eventlayer";

const eventlayer = new Eventlayer();
const { data: ticket, error } = await eventlayer.tickets.checkIn({
  ticketId: "tkt_your_ticket",
});
if (error) throw error;

console.log(ticket.status); // checked_in

A successful response records admission. If two scanners submit the same ticket, only one can complete its first check-in.

Show the result

If the response is lost, show an unknown result for staff to review. See errors and recovery for handling failures.

Next steps

React to check-in events to update your CRM or send a follow-up.