Category · 130 articles

Architecture & Design

Database indexes: a mental model — a step-by-step guide

ENGINEERING CRAFT · DAY 007

Database indexes: a mental model — a step-by-step guide

Expona Admin · Oct 27, 2026 · 7 min read

SQL or NoSQL: choosing a database — a step-by-step guide

ENGINEERING CRAFT · DAY 008

SQL or NoSQL: choosing a database — a step-by-step guide

Expona Admin · Oct 27, 2026 · 6 min read

Read replicas: the fine print — best practices explained

ENGINEERING CRAFT · DAY 009

Read replicas: the fine print — best practices explained

Expona Admin · Oct 27, 2026 · 6 min read

Database sharding explained: what developers should know

ENGINEERING CRAFT · DAY 010

Database sharding explained: what developers should know

Expona Admin · Oct 27, 2026 · 8 min read

Consistent hashing in one minute: lessons from production

ENGINEERING CRAFT · DAY 011

Consistent hashing in one minute: lessons from production

Expona Admin · Oct 27, 2026 · 9 min read

CAP and PACELC without the jargon: a step-by-step guide

ENGINEERING CRAFT · DAY 012

CAP and PACELC without the jargon: a step-by-step guide

Expona Admin · Oct 27, 2026 · 6 min read

Strong vs eventual consistency: best practices explained

ENGINEERING CRAFT · DAY 013

Strong vs eventual consistency: best practices explained

Expona Admin · Oct 27, 2026 · 9 min read

Design a URL shortener: a practical guide for developers

ENGINEERING CRAFT · DAY 014

Design a URL shortener: a practical guide for developers

Expona Admin · Oct 27, 2026 · 7 min read

Generating unique IDs at scale: best practices explained

ENGINEERING CRAFT · DAY 015

Generating unique IDs at scale: best practices explained

Expona Admin · Oct 27, 2026 · 8 min read

Design a rate limiter: a practical guide for developers

ENGINEERING CRAFT · DAY 016

Design a rate limiter: a practical guide for developers

Expona Admin · Oct 27, 2026 · 8 min read

Idempotency: the API property nobody teaches in practice

ENGINEERING CRAFT · DAY 017

Idempotency: the API property nobody teaches in practice

Expona Admin · Oct 27, 2026 · 9 min read

Design a news feed: a practical Engineering Craft guide

ENGINEERING CRAFT · DAY 018

Design a news feed: a practical Engineering Craft guide

Expona Admin · Oct 27, 2026 · 9 min read

Webhooks that don't lose data: best practices explained

ENGINEERING CRAFT · DAY 019

Webhooks that don't lose data: best practices explained

Expona Admin · Oct 27, 2026 · 8 min read

Design a ride-hailing backend: best practices explained

ENGINEERING CRAFT · DAY 020

Design a ride-hailing backend: best practices explained

Expona Admin · Oct 27, 2026 · 8 min read

Geospatial queries in practice: best practices explained

ENGINEERING CRAFT · DAY 021

Geospatial queries in practice: best practices explained

Expona Admin · Oct 27, 2026 · 8 min read

Design an e-commerce checkout: best practices explained

ENGINEERING CRAFT · DAY 022

Design an e-commerce checkout: best practices explained

Expona Admin · Oct 27, 2026 · 8 min read

Monolith first: the honest default in Engineering Craft

ENGINEERING CRAFT · DAY 025

Monolith first: the honest default in Engineering Craft

Expona Admin · Oct 27, 2026 · 6 min read

The hidden costs of microservices: a step-by-step guide

ENGINEERING CRAFT · DAY 026

The hidden costs of microservices: a step-by-step guide

Expona Admin · Oct 27, 2026 · 8 min read

API design principles I follow: best practices explained

ENGINEERING CRAFT · DAY 028

API design principles I follow: best practices explained

Expona Admin · Oct 27, 2026 · 8 min read

HTTP status codes that matter: best practices explained

ENGINEERING CRAFT · DAY 029

HTTP status codes that matter: best practices explained

Expona Admin · Oct 27, 2026 · 10 min read