How to Solve System Design

System design case study untuk Astro Q-Commerce — 11 case dari flash sale sampai dynamic pricing dengan implementasi Go.

Astro Q-Commerce — 11 Case Studies

Q-commerce punya constraint unik: real-time inventory, geo-serviceability, driver dispatch, latency rendah. Case study utama pakai Astro & Klik Indomaret sebagai konteks.

Astro Q-Commerce — 11 Case Interview — 11 case system design lengkap: flash sale, inventory, geo, dispatch, ETA, checkout saga, promo engine, search, tracking, forecasting, dynamic pricing. Semua dengan contoh Go.
Flash Sale System Design — Redis stock partitioning, waiting room, rate limiter, anti-bot
Real-time Inventory per Dark Store — Reservation pattern, oversell prevention
Geo Serviceability & Hub Assignment — H3/PostGIS, polygon coverage
Order Dispatch & Driver Allocation — Batching, greedy matching, GEOSEARCH
ETA Estimation — Picking time + OSRM routing + ML model
Checkout & Payment Saga — Orchestration saga, idempotency, outbox
Promo & Voucher Engine — Rule engine, atomic counter, anti-fraud
Search & Catalog — Elasticsearch + Redis stock filter per-hub
Real-time Order Tracking — WebSocket GPS, Kalman filter, pub/sub
Demand Forecasting — Holt-Winters, cold-start, FEFO
Dynamic Delivery Fee — Signal-based pricing, surge detection

Referensi

System Design Interview — An Insider's Guide (Alex Xu) — Buku wajib system design interview. Vol 1 & 2 mencakup framework, real-world case studies, dan deep dive arsitektur.
ByteByteGo — Platform learning system design oleh Alex Xu. Newsletter, video course, dan diagram arsitektur yang jadi standar industri.