WKT to GeoJSON Logstash Filter

Parses WKT encoded geography on Logstash event and converts it to GeoJSON.

filter {
    wkt_to_geojson {
        field => "wkt"
        target => "geo_json"
        tag_on_parse_failure => [ "wkt_paring_error" ]
    }
}

For walk through of developing Logstash filter plugin see https://www.elastic.co/guide/en/logstash/current/_how_to_write_a_logstash_filter_plugin.html

To Use

• Install Dependencies

bundle install

• Test

bundle exec rspec

• Build Gem

gem build logstash-filter-wkt_to_geojson.gemspec

• Install Gem as Logstash plugin

logstash-plugin install logstash-filter-wkt_to_geojson-0.1.0.gem