The Amadeus Enterprise API offers both stateless and stateful APIs to cater to different use cases in travel technology. Here's a breakdown of their purposes.

• Purpose: Designed for simple, one time requests where each API call is independent and does not rely on previous interactions.
• Characteristics:
• • No session persistence; each request contains all necessary data.
  • Faster and more scalable since no server side state is maintained.
  • Suitable for lightweight queries where context is not required.

Common use cases for Amadeus stateless APIs

• Flight Search & Availability : Returning real time flight options based on user input.
• Hotel & Car Rental Search : Fetching available options without maintaining session data.
• Pricing & Fare Rules : Providing cost breakdowns for selected flights or services.

• Purpose: Used for multi-step workflows where context and session persistence are required.
• Characteristics:
• • Maintains a session (e.g., shopping cart, booking flow).
  • Requires session tokens to track user actions.
  • More complex but necessary for transactional processes.

Common use cases for Amadeus stateful APIs:

• Flight Booking & Ticketing: Keeping track of a reservation process across multiple steps.
• Passenger Name Record (PNR) Management: Storing and modifying travel reservations.
• Payment & Confirmation: Handling transactions where session persistence is necessary.

• Use Stateless APIs for quick searches, reference data or when you don’t need a persistent booking flow.
• Use Stateful APIs for end to end travel bookings where user selections (e.g., flights, seats, payments) must be tracked.

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