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:

• Latency must feel real-time to the user (<=200ms).
• The system must be horizontally scalable to handle traffic peaks without wasting resources during off-peak periods.
• It must be highly consistent to ensure that scheduled slots are genuinely available upon payment confirmation

API Design

//get reservations

GET /spots

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.