Practical notes on backend architecture, frontend SEO, and deployment work from real product builds.
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12
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94 min
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Compare Google Maps Platform pricing and Vietnam limitations, then migrate geocoding, reverse geocoding, and address autocomplete to GoGoDuk with real code.
Nguyen Hoang Tuan•Jun 12, 2026•9 min readA deep technical breakdown of the newly released Redis 8.8 (June 2, 2026). Explore the new O(1) sparse-friendly Array structure by antirez, the native INCREX rate-limiting command, and Hash field-level subkey notifications.
Nguyen Hoang Tuan•Jun 8, 2026•9 min readExplore practical PostGIS database optimization techniques from the Gogoduk Map API project. Learn how migrating from Geometry to Geography, designing Partial GIST indexes, and simplifying polygons can achieve 10ms query times.
Nguyen Hoang Tuan•Jun 8, 2026•10 min readLearn how Gogoduk builds API Rate Limiting and Quota Alerting systems with Redis and Go. Discover how to use Lua scripts for atomicity, prevent memory leaks, and leverage SETNX to deduplicate notifications.
Nguyen Hoang Tuan•Jun 8, 2026•9 min readA comprehensive guide to building a fast, accent-insensitive, and typo-tolerant Vietnamese address autocomplete system in PostgreSQL using unaccent, FTS, and Trigram indexing.
Nguyen Hoang Tuan•Jun 4, 2026•9 min readA practical system-design guide to tracking user online/offline status using Redis Bitmaps. Calculate RAM requirements, learn core commands, and solve real-world production pitfalls.
Nguyen Hoang Tuan•Jun 3, 2026•8 min readLearn how to reduce checkout abandonment rates and eliminate data entry errors by implementing a single-field Vietnam address autocomplete API in your forms.
Nguyen Hoang Tuan•Jun 2, 2026•5 min readExplore the backend challenges of mapping Vietnamese administrative divisions (Provinces, Districts, Wards) for logistics routing, pricing, and spatial data modeling.
Nguyen Hoang Tuan•Jun 2, 2026•6 min readA developer-focused look at GoGoDuk, a Vietnam map API platform for geocoding, address search, POI search, and admin boundaries with a free tier.
Nguyen Hoang Tuan•Jun 2, 2026•6 min readA practical guide to NestJS modular architecture for production APIs, covering modules, service boundaries, DTO validation, dependency injection, and maintainability.
Nguyen Hoang Tuan•Jun 2, 2026•8 min readA practical Next.js App Router SEO checklist covering metadata, canonical URLs, OpenGraph, structured data, sitemap, RSS, and performance.
Nguyen Hoang Tuan•May 29, 2026•7 min readA production-focused guide to Dockerizing a NestJS app with multi-stage builds, environment configuration, health checks, CI/CD, and deployment readiness.
Nguyen Hoang Tuan•May 24, 2026•8 min read