Trying to use QR Code as a method to automatically track attendance of visitors of an event. So if visitors were to mark their attendance, they would need to use their phone to scan their individualized QR code that will be printed on the guest list next to their names.
Scanning their individualized QR Code should automatically mark the checkbox custom field e.g. "Attended__c" as ticked for the particular attendee in the SFDC records.
How do I go about doing this?
- Visualforce page (I tried doing this but the attendee would need to have authentication and update their attendance manually) OR
- Force.com REST API (not sure how) OR
- Javascript (not sure how) OR
- Other ways?