Design a cloud-based global property rental platform

## System design: Cloud migration for a property rental website A property dealer runs a website that lists properties (photos, location, rent details). They serve **international customers**, so **fast and secure** user experience is critical. They want to migrate from a traditional setup to a **cloud-based infrastructure**. You are asked to **redesign the whole system** and replace a vague “process” box with the **actual workflow**. ### Functional requirements The platform should provide services for: - **View service**: show property details and photos to guests. - **Search service**: search across different properties (by location, price, availability, etc.). - **Guest service**: maintain guest favorites, last-viewed records, and basic profile preferences. - **Update service**: allow admins/agents to create/update listings (including photos). - **Payment service**: allow users to make online payments (e.g., booking deposit / rent payment). ### Non-functional requirements - Global users (multi-region), low latency - High availability and scalability - Secure (authentication/authorization, secure payments) - Observability (monitoring, logging, tracing) ### Deliverables - High-level architecture (major components and data stores) - Request flows for: search → view → favorite → pay, and listing updates - Key design decisions (caching, consistency, indexing, multi-region, failure handling) - Core metrics/SLOs to monitor