Requirements
Functional Requirements:
- Allow reservation of a parking spot.
- Process payment for the reservation.
- Enable parking of a car in the reserved spot.
- Support early departure before reservation time expires.
- Gate check-in/out.
- Handle no show.
Non-Functional Requirements:
- Secure handling of payment details
- Low latency
- Horizontal scaling
- Strong consistency
API Design
- View available parking spots - read
- Select available parking spot - write
- Pay for parking spot - write
- Early departure
High-Level Design
Describe the overall system architecture. Identify the main components needed to solve the problem end-to-end. Use the diagramming tool to create a block diagram.
Detailed Component Design
Deep dive into 2-3 key components. Explain how they work, how they scale, discuss tradeoffs, capacity, and any relevant algorithms or data structures.