NAME

WebService::Geocodio - A Perl interface to Geocod.io

VERSION

version 0.04

SYNOPSIS

    use 5.014;
    use WebService::Geocodio;
    use WebService::Geocodio::Location;

    my $geo = WebService::Geocodio->new(
        api_key => $ENV{GEOCODIO_API_KEY}
    );

    # Wrigley Field
    my $loc = WebService::Geocodio::Location->new(
        number => 1060,
        postdirection => 'W',
        street => 'Addison',
        suffix => 'Street',
        city => 'Chicago',
        state => 'IL',
    );

    # Could add more than one thing here, even bare strings are OK
    # 20050 = zip code in Washington DC
    $geo->add_location($loc, '20050');

    $geo->add_field('timezone');

    # prints:
    # Chicago: 41.947205791667, -87.656316875, CST
    # Chicago: 41.947180613636, -87.657167363636, CST
    # Washington: 38.893311, -77.014647, EST
    map { say $_->city, ": ", $_->lat, ", ", $_->lng, ", " $_->fields->timezone->name } $geo->geocode();

OVERVIEW

This module is a fairly thin wrapper around the Geocod.io geocoding web service. This service currently only supports US based addresses at the moment. Both forward and reverse geocoding is supported.

In my testing, the service is somewhat finicky about how addresses are presented and stored; please read the service API documentation thoroughly to make sure you're getting the best quality results from the service.

You will need to obtain a free API key to use this library.

All errors are fatal and reported by confess. If you want more graceful error handling, you might want to try using Try::Tiny.

ATTRIBUTES

api_key

This is the geocod.io API key. It is required.

locations

The list of locations you want to geocode. These can be bare strings (if you like) or you can use a fancy object like WebService::Geocodio::Location which will serialize itself to JSON automatically.

fields

You may request the following fields be included in the results:

• cd

  Congressional District (for the current Congress)

• cd113

  Congressional District (for the 113th Congress which runs through 2015)

• stateleg

  The state legislative divisions for this location. The results include both House and Senate, unless the location is unicameral like Nebraska or Washington D.C., then only a senate result is given.

• timezone

  The timezone of this location, UTC offset and whether it observes daylight saving time.

• school

  The unified or elementary/secondary school district identifiers for this location.

METHODS

add_location

This method takes one or more locations and stores it in the locations attribute.

show_locations

Show the locations currently set for geocoding.

clear_locations

If you want to clear the current list of locations, use this method.

add_field

This method takes one or more fields to include in a result set. Valid fields are:

• cd

• cd113

• stateleg

• timezone

• school

Fields that do not match these valid names are silently discarded.

geocode

Send the current list of locations to the geocod.io service.

Returns undef if there are no locations stored.

In a list context, returns a list of WebService::Geocodio::Location objects. In a scalar context, returns an arrayref of WebService::Geocodio::Location objects. The list of objects is presented in descending order of accuracy.

reverse_geocode

Send the current list of latitude, longitude pairs to the geocod.io service.

Returns undef if there are no locations stored.

In a list context, returns a list of WebService::Geocodio::Location objects. In scalar context, returns an arrayref of WebService::Geocodio::Location objects. The list of objects is presented in descending order of accuracy.

AUTHOR

Mark Allen <mrallen1@yahoo.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2014 by Mark Allen.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

cpanm WebService::Geocodio

perl -MCPAN -e shell
install WebService::Geocodio