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GeoJSON: The Format Maps Love More Than You Love Your Own JSON

Explaining why GeoJSON became the standard for geodata and how to use it with a smirk.

8 mai 20262 min read
GeoJSON: The Format Maps Love More Than You Love Your Own JSON

If you thought JSON was just a way to shuttle data from server to client, GeoJSON is here to expand your horizons. It's not just another format—it's a Swiss Army knife for geodata. Imagine you want to mark all coffee shops within 500 meters of the office—without GeoJSON, you'd be drawing dots on the screen with your finger.

GeoJSON is an open standard that describes geographic structures: points, lines, polygons, and their collections. It uses familiar JSON but with extra rules. For example, a FeatureCollection object can contain an array of features, each with geometry and properties. It's as easy to read and parse as your favorite bedtime story.

Developers who know the pain of working with maps will appreciate: GeoJSON is supported by all major libraries—Leaflet, Mapbox, OpenLayers. It's like a universal remote for all the TVs in the house, but for maps. And yes, it saves you from the ritual dance of converting data between different APIs.

How does it work in practice?

  • Create a GeoJSON object with coordinates.
  • Plug in a map library.
  • Voilà—your data appears on the map faster than you can brew coffee.

By the way, if you've ever tried to manually write a polygon for a delivery zone, you know it's a pain. GeoJSON spares you that by providing a clear structure. The only downside—coordinates are in degrees, so don't mix up latitude and longitude, or your pizzeria might end up in the ocean.

Studio METABYTE comment: GeoJSON is like LEGO for geodata: simple bricks you can assemble into anything. If your project involves maps, we'll help you build that structure without any cracks.

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