inventoryservice

Inventory Service: Business & Technical Overview

Service Overview

The Inventory Service is responsible for maintaining accurate stock levels across the product catalog. It manages stock reservations and triggers replenishment logic during high-demand periods.

Core Functionality

• Stock Checking: Provides real-time availability data for the Order and Payment services.
• Reservation Logic: Holds stock during the checkout window to prevent over-selling.
• Restocking Simulation: Automatically replenishes items as they reach zero to ensure continuous simulation throughput.

Technical Specifications

• Primary Port: 9003
• Technology Stack: Golang with integrated health checks.

Performance Characteristics

Designed to simulate "Hot Keys" and heavy concurrent access:

• Lock Contention: High-volume traffic to specific items will mimic database locking and increased processing time.

Observability

• stock_check_count: Total validation requests received.
• stock_depletion_count: Tracks how often items hit zero stock.

Integration Profile

Serves as a shared dependency for:

• Order Service (Port 9001)
• Payment Service (Port 9002)