post https://globalticket.com/webservices/scanapi/getAvailability
Description:
With this functionality you can retrieve the availability of a specified article (ticket type).
note
This function only returns tickettypes that have been made available for sale through API.
HMAC calculation:
Base64 encode - SHA256(apiKey + ticketTypeId + ticketDate*)
- only include ticketDate in the HMAC if you are using this param.