I need to connect my activity-booking inventory to Google Things to Do so travellers can see real-time availability, pricing, and complete their reservation without leaving the Google results page. The project covers the full GTTD Activity Booking flow—content feed, availabilities, lead-times, pricing rules and the booking/confirmation API hand-shake—along with synchronising those same activities on major travel websites. Key deliverables • Build and deploy the complete Google Things to Do Activity Booking integration, compliant with Google’s latest specs. • Map my existing product IDs, schedules and allotments to Google’s schema and push live content, availability and price feeds. • Implement booking, modification and cancellation endpoints with robust error handling and logging. • Extend the connector so the same feed can be consumed by leading travel websites (e.g. Expedia, Booking.com, Airbnb or similar) using their respective API formats. • Provide clear technical documentation and a short hand-over session so my team can maintain the integration. Acceptance criteria • Activities appear in Google search and on the “Things to Do” module with up-to-date stock and pricing. • End-to-end test bookings succeed on both Google and at least one connected travel website. • Response times and error rates meet Google performance thresholds. Please outline your proposed tech stack, estimated timeline, and any past experience with GTTD or comparable travel APIs when you reply.