Blog
Engineering notes, migration guides, and product updates from the GoGoDuk Map API team.
Car Routing Is Here: `vehicle=car` on the Directions API
The Directions API now routes cars on their own dedicated road graph — not a relabeled motorbike route — for ride-hailing, delivery vans and logistics fleets that drive cars in Vietnam.
Flutter Address Autocomplete for Vietnam (suggest + resolve)
Build a Vietnam address input in Flutter: debounce, call /v1/suggest for predictions and /v1/place/resolve for coordinates, proxy to hide your API key — with full Dart code.
Vietnam E-commerce & Logistics 2026: Why Local Map Infrastructure Wins
Vietnam e-commerce is heading toward US$40B by 2027 and last-mile to US$3B — why geocoding & routing tuned for Vietnam, with predictable cost, is now a real edge.
Embed a MapLibre Map + Vietnam Address Search in Plain JavaScript
Embed a MapLibre map and a Vietnam address autocomplete with plain HTML/JavaScript — no framework, using GoGoDuk's /v1/suggest, and drop a pin from the coordinates.
Google Maps Pricing Changes 2025: The $200 Credit Is Gone, Directions & Places Go Legacy
From March 2025 Google Maps dropped the $200 monthly credit for per-SKU free caps and moved Directions, Distance Matrix and Places API to Legacy. What it means for Vietnam-focused apps, and the alternatives.
Why Vietnamese Apps Are Leaving Google Maps (and How to Decide)
The real reasons Vietnamese apps move off Google Maps — cost, billing access, and local data — plus a switch-or-stay checklist for founders and product teams.
Vietnam POI Search API: Find Nearby Restaurants, Stores, and ATMs
How to use GoGoDuk's POI API to find nearby places in Vietnam: filter by category, radius, rating, and open-now. Returns GeoJSON, free 100 requests/day.
Build a React/Next.js Address Autocomplete Component for Vietnam
A practical guide to building a reusable Vietnamese address-autocomplete component in React/Next.js: debounce, keyboard navigation, a key-hiding proxy, and wiring /v1/suggest to /v1/place/resolve for clean coordinates.
Calculate Shipping Fees by Distance with a Directions API
Compute real shipping fees from actual route distance and time using GoGoDuk's /v1/directions — motorbike-optimized routing for Vietnam, free forever.
Google Maps API Cost vs GoGoDuk: Real Numbers for a Vietnam Startup
What a Vietnamese app actually pays Google Maps for geocoding, autocomplete, and map loads — with a worked monthly bill — versus a free-forever Vietnam map API.
Introducing the GoGoDuk Directions API for Vietnam
A new routing endpoint with turn-by-turn directions, optimized for motorbikes and returned in a Google Directions–compatible format so you can swap in with almost no code changes.
Build a Store Locator for Vietnam with MapLibre and a Geocoding API
A practical Next.js tutorial for building a Vietnam store locator: address search, place resolution, nearest-branch ranking, and MapLibre markers without exposing your API key.
How Gogoduk Boosts API Performance and Simplifies Architecture with Redis 8.8
A production case study on how Gogoduk leverages Redis 8.8 to optimize API latency and reduce architectural complexity: replacing custom Lua rate limiters with INCREX and optimizing cache invalidation.
Optimizing Map Costs: Setting Up Free Staging & Testing Map APIs
Looking for a Map API solution for staging and testing? Learn how to reduce Google Maps API costs by using GoGoDuk's 100% free tier with no credit card required.
How to Build Delivery Zones in Vietnam using Map APIs
A step-by-step developer tutorial on how to implement location-based service boundaries, calculate shipping fees, and filter regions in Vietnam.
Self-hosting OpenStreetMap (OSM) Tile Server for Vietnam vs GoGoDuk Map API
Learn how to self-host a map tile server and Nominatim geocoder for Vietnam using Docker, hardware requirements, and maintenance costs compared to GoGoDuk.
Vietnam Address Autocomplete API: Build Better Checkout and Delivery Forms
How to design address autocomplete for Vietnamese checkout, delivery, and logistics flows using partial input, diacritics, place IDs, and validation.
Vietnam's 2025 Province Merger: Normalizing Old → New Addresses with an API
After the merger, Vietnam has 34 provinces. Old address data now breaks logistics, e-commerce, and CRM systems. Here's how to normalize old → new addresses with an admin-boundary API.
Reverse Geocoding API: Find Vietnam Province and District from GPS Coordinates
How to use reverse geocoding to turn latitude/longitude into current Vietnam province and district data for delivery zones, driver tracking, CRM, and reporting.
Best Vietnam Map APIs in 2026: Google Maps vs Goong vs Mapbox vs OpenStreetMap vs GoGoDuk
A detailed comparison of the best map APIs for Vietnam in 2026 — pricing, free tiers, Vietnamese address quality, admin boundaries. Find the right Google Maps API alternative.
Google Maps API Restricted in Vietnam: Common Errors and What to Do Next
Why Google Maps API billing can be hard for Vietnam-based teams, the errors developers usually see, and how to decide whether to debug billing or migrate geocoding to GoGoDuk.
What Is Geocoding? Converting Addresses to Coordinates in Vietnam
What geocoding is, how forward and reverse geocoding differ, real-world uses in Vietnam, and how to call an API to turn addresses into latitude/longitude — with code examples.
Why we built a free map API for Vietnam
GoGoDuk is a free-forever map API for Vietnam. Here's why we built it, why we won't charge, and who it's for.
Vietnam admin boundaries: 34 provinces, 3,323 districts, and rich metadata
How GoGoDuk's admin-boundary endpoint works today — province and district polygons plus population, area, contact info, and centroids.
Geocoding Vietnamese addresses: edge cases
Diacritics, alley numbering, ward renames, and the other Vietnamese-address quirks that break naive geocoders — and how GoGoDuk handles them.
Migrate from Google Maps Geocoding API to GoGoDuk in 5 minutes
A drop-in migration guide from Google Maps Geocoding API to GoGoDuk — same fields, same response shape, free forever for Vietnam.
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