Add this line to your application's Gemfile:

gem 'rails2gis'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install rails2gis

First of all you should connect API in your application in application.js

//= require maps2gis

To create a container in which to display the map, you need to add a block of HTML-size item you require:

<div id="map" style="width:500px; height:400px">
</div>

Script for map:

var map;
DG.then(function () {
    map = DG.map('map', {
        center: [54.98, 82.89], # latitude and longitude of center
        zoom: 13 # zoom level from 1 to 18
    });
    # Add some markers
    DG.marker([54.98, 82.89]).addTo(map);
});

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/rails2gis. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

The gem is available as open source under the terms of the MIT License.