@types/geojson

Defining GeoJSON Objects

This code sample demonstrates how to define a GeoJSON object representing a feature collection with TypeScript. The @types/geojson package ensures that the object structure adheres to the GeoJSON specification.

{"type": "FeatureCollection", "features": [{ "type": "Feature", "geometry": { "type": "Point", "coordinates": [102.0, 0.5] }, "properties": { "prop0": "value0" } }]}

Type Checking GeoJSON Objects

This code sample shows how to use the @types/geojson package for type checking a GeoJSON object. It ensures that the object conforms to the GeoJSON specification for a FeatureCollection containing Point features.

import { FeatureCollection, Point } from 'geojson';

const myGeoJsonObject: FeatureCollection<Point> = {
  type: 'FeatureCollection',
  features: [
    {
      type: 'Feature',
      geometry: {
        type: 'Point',
        coordinates: [102.0, 0.5]
      },
      properties: {}
    }
  ]
};