geojsonhint

geojsonhint: complete standards-based validation for geojson

A lint tool for the GeoJSON standard. geojsonhint is written to the standard, with no missing or additional opinions about structure.

Thanks to jsonlint-lines, GeoJSON that is also not valid JSON will return informative, line-oriented parsing errors.

api

errors = geojsonhint.hint(fileAsString)

Lint a file - given as a string - with the GeoJSON expectations baked in. An example of the output:

[{
  "message": "\"features\" property should be an array, but is an object instead",
  "line": 1
}]

use it

as a library

npm install --save geojsonhint

as a web library

curl https://raw.github.com/mapbox/geojsonhint/master/geojsonhint.js > geojsonhint.js

binary

Install:

npm install -g geojsonhint

➟ geojsonhint
Usage: geojsonhint FILE.geojson

Options:
  --json  output json-formatted data for hints

➟ geojsonhint test.geojson
line 9, each element in a position must be a number

developing

Tests:

npm test

Building the browser version:

npm install -g browserify
make

See Also

• geojsonhint online
• grunt-geojsonhint does it as a Grunt task
• geojsonlint.com does this server-side
• GeoJSON-Validation is another node module for this.
• geojson-assert does it in assertion tests

Changelog

0.3.2

• Detects & reports incorrectly nested LinearRing arrays