Is the open-source geocoder built on top of ElasticSearch for fast geocoding and provides better search for CIS countries
Work in progress. This may not work in your country. You are welcome for any issues, advices or other feedback
###What's a geocoder do anyway?
Geocoding is the process of transforming input text, such as an address, or a name of a place—to a location on the earth's surface.
It able to search:
- Street + housenumber
- Road intersections
- Points of interest
- Microdictricts
- Addresses in microdistricts
- Nearest villages and towns
- Search with auto replace from dictionary
- Reverse geocoding
Reverse geocoding is the opposite, it transforms your current geographic location in to a list of places nearby.
- ElasticSearch
- PostgreSQL
Ariadna consists of 3 parts:
- Importer: OSM data importer to elastic search
- Updater: Download and import data
- WebUI for searching data
- Custom importer
git clone git@github.com:gen1us2k/osm-geogoder.git
cd osm-geogoder
make depends
make
COMMANDS:
import Import OSM file to ElasticSearch
update Download OSM file and update index
http Run http server
custom Import custom data
intersections Process intersections only
GLOBAL OPTIONS:
--config Config file path
--index_settings ElasticSearch Index settings
--custom_data Custom data file path
--es_index_name "addresses" Specify custom elasticsearch index name [$ARIADNA_ES_INDEX_NAME]
--es_pg_conn_url "host=localhost user=geo password=geo dbname=geo sslmode=disable" Specify custom PG connection URL [$ARIADNA_PG_CONN_URL]
--es_url "http://localhost:9200" Custom url for elasticsearch e.g http://192.168.0.1:9200 [$ARIADNA_ES_HOST]
--es_index_type "address" ElasticSearch index type [$ARIADNA_INDEX_TYPE]
--filename "xxx" filename for storing osm.pbf file [$ARIADNA_FILE_NAME]
--download_url "xxx" Geofabrik url to download file [$ARIADNA_DOWNLOAD_URL]
--dont_import_intersections if checked, then ariadna won't import intersections [$ARIADNA_DONT_IMPORT_INTERSECTIONS]
--help, -h show help
--version, -v print the version
Elastic search index settings
cp index.json.example index.json
Change it for you
{
"settings": {
"analysis": {
"filter": {
"map_poi_filter": {
"type": "synonym",
"synonyms": [
# all synonyms goes here
]
}
},
"analyzer": {
"map_synonyms": {
"tokenizer": "standard",
"filter": [
"lowercase",
"map_poi_filter"
]
}
}
}
},
"mappings":
{"address":
{"properties":
{
"centroid": {
"type": "geo_point" # need to reverse geocoding
}
}
}
}
}
First import data. Download it from geofabrik.de and run
$ ./ariadna import
Or you can specify download_url and file_name into settings and run
$ ./ariadna update
This creates elasticsearch index
$ ./ariadna http
Open http://localhost:8080 in your browser and enjoy
There is http api for geocode and reverse geocode
- /api/search/:query
- /api/reverse/:lat/:lon
To start Postgres, Elasticsearch and Ariadna run
$ cd ariadna-docker
$ cp ../index.json.example ./index.json
$ docker-compose up -d
$ docker-compose run --rm ariadna /go/bin/ariadna update
Open http://localhost:8080 in your browser and enjoy
- Remove pg for searching intersections
- Test search for other countries
- Write some tests
- Better code design
- Drop postgres dependency for searching crossroads
- Autocomplete
- More intelligent memory usage
- Add more sources for geocoding
- Fork it ( https://github.com/maddevsio/ariadna/fork )
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create a new Pull Request
You're welcome.
Tested only for my city and my country.