Geojsonlint

A geoJSON validator.

Validate a Hash or a JSON String object.

data = {
  type: 'Feature',
  geometry: {
    type: 'Point',
    coordinates: [-80.72, 35.26]
  },
  properties: {}
}

geojson = Geojsonlint.validate(data)
geojson.valid? # => true

data = {
  type: 'Feature',
  geometry: {
    type: 'Point',
    coordinates: 'invalid'
  },
  properties: {}
}

geojson = Geojsonlint.validate(data)
geojson.valid? # => false
geojson.errors # => [{ schema: {...}, fragment: "...", message: "...", failed_attribute: "...", errors: [...] }]

Also included is a custom validator for your ActiveModel objects.

class Feature
  include ActiveModel::Model
  include ActiveModel::Validations

  attr_accessor :data

  validates :data, geojson: true
end

feature = Feature.new(data: data)
feature.valid?
feature.errors[:data] # => ["Geojson is invalid""]

Add this line to your application's Gemfile:

gem 'geojsonlint'

And then execute:

$ bundle

Or install it yourself as:

$ gem install geojsonlint

After checking out the repo, run bin/setup to install dependencies. Then, run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release to create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

1. Fork it ( https://github.com/phildionne/geojsonlint/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request
6. Thank you!

• mapbox/geojsonhint
• 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