GP Travel HUB is a consolidator that allows to search and book offers of different supplies via a single Application Program Interface (API).
Diagram 1.1.1. GP Travel HUB Hotel Workflow
All requests form a natural chain that allow user to search hotel, then optionally request additional hotel details, price breakdown or cancellation charges, and then proceed to booking of selected hotel. After the hotel is booked it can be further modified or cancelled. At any time it is also possible to retrieve active booking status from supplier.
To search for accommodation you have to make hotel availability (HotelAvail) request.
To get additional information about a hotel you have to make the following requests: hotel descriptive information (HotelDescriptiveInfo), hotel price breakdown (HotelPriceBreakdown), hotel charges (HotelCharges).
To book accommodation you have to send hotel reservation (HotelReservation) request.
To cancel request you have to send cancel (Cancellation) request.
To modify your booking you have to send hotel reservation modification (HotelResModify) request.
To get information about booking status you have to send booking retrieval (BookingRetrieval) request.
At the moment GP Travel HUB supports only SOAP API with XML interface of requests/responses and operates in synchronous mode.