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README.md

GeoPostCoder

Loading Code-Point Open data into your database

First order and download the Code Point Open files from the Ordnance Survey and unpack them locally. You should get a Data/CSV directory containing a file for each postcode prefix. In total there were about 1.68 million rows (Q1 2013).

Create your database and install PostGIS extensions (assuming Postgres 9.1+, PostGIS 2+, and sufficient DB privileges).

$ createdb geopostcoder
$ psql -c "CREATE EXTENSION postgis" geopostcoder

Then you can load the Code-Point Open data into your db:

$ cat /cpo-download/Data/CSV/*.csv | script/load_code_point_open -d <database>

Running a local server

copy config/database.yml.example to config/database.yml, and edit it to match your database name

Install the necessary gems by running bundle install, then start the server with thin start.

Point your browser at http://localhost:3000, and try out reverse geocoding some latitudes and longitudes to UK postcodes.

License

GeoPostCoder is released under the MIT License.

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Reverse-geocode lat,lng to UK postcodes, using Ordnance Survey OpenData and PostGIS

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