Search postcodes for Norway

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This gem is a simple interface to the Norwegian postcode database published by Bring. It allows you to search for and retreive entries in the postcode database.

A rake task is included to fetch the actual postcode data as published by Bring.


In your Gemfile, add the following:

gem 'postcodes-norway'

Then run bundle install as usual.

Fetch the data:

rake postcodes:fetch[output_dir]

A file named "Postnummerregister_ansi.txt" will be placed in the specified output_dir.


Initialize the library:

require 'postcodes-norway'


Query for some postcodes:

p1 = PostCodes.search(1326)
puts p1.city                 # => "LYSAKER"
puts p1.municipality_name    # => "BÆRUM"
puts p1.county               # => [2, "AKERSHUS"]

p2 = PostCodes.search('0666')
puts p2.city                # => "OSLO"
puts p2.municipality_name   # => "OSLO"
puts p2.county              # => [3, "OSLO"]


Feel free to send suggestions or pull requests.


Copyright (C) 2015 Harald Eilertsen

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.