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Multimap.pm
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Multimap.pm
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package Geo::Coder::Multimap;
use strict;
use warnings;
use Carp qw(croak);
use Encode ();
use JSON;
use LWP::UserAgent;
use URI;
our $VERSION = '0.01';
$VERSION = eval $VERSION;
sub new {
my ($class, %params) = @_;
my $key = $params{apikey} or croak q('apikey' is required);
my $self = bless { key => $key }, $class;
if ($params{ua}) {
$self->ua($params{ua});
}
else {
$self->{ua} = LWP::UserAgent->new(agent => "$class/$VERSION");
}
return $self;
}
sub ua {
my ($self, $ua) = @_;
if ($ua) {
croak q('ua' must be (or derived from) an LWP::UserAgent')
unless ref $ua and $ua->isa(q(LWP::UserAgent));
$self->{ua} = $ua;
}
return $self->{ua};
}
sub geocode {
my $self = shift;
my %params = (@_ % 2) ? (location => shift, @_) : @_;
my $location = $params{location} or return;
my $country = $params{country};
$location = Encode::encode('utf-8', $location);
my $uri = URI->new(
'http://developer.multimap.com/API/geocode/1.2/' . $self->{key}
);
$uri->query_form(
qs => $location,
output => 'json',
$country ? (countryCode => $country) : (),
);
my $res = $self->ua->get($uri);
return unless $res->is_success;
my $data = eval { from_json($res->decoded_content) };
return unless $data;
my @results = @{ $data->{result_set} || [] };
return wantarray ? @results : $results[0];
}
1;
__END__
=head1 NAME
Geo::Coder::Multimap - Geocode addresses with the Multimap Open API
=head1 SYNOPSIS
use Geo::Coder::Multimap;
my $geocoder = Geo::Coder::Multimap->new(apikey => 'Your API Key');
my $location = $geocoder->geocode(
location => 'Hollywood and Highland, Los Angeles, CA, US'
);
=head1 DESCRIPTION
The C<Geo::Coder::Multimap> module provides an interface to the geocoding
functionality of the Multimap Open API.
=head1 METHODS
=head2 new
$geocoder = Geo::Coder::Multimap->new(apikey => 'Your API Key')
Creates a new geocoding object.
An API key can be obtained here:
L<https://www.multimap.com/openapi/signup/>.
Accepts an optional B<ua> parameter for passing in a custom LWP::UserAgent
object.
=head2 geocode
$location = $geocoder->geocode(location => $loc)
$location = $geocoder->geocode(location => $loc, country => $code)
@locations = $geocoder->geocode(location => $loc)
The C<location> string should either include the country or the C<country>
parameter should be given. Note, the C<country> parameter will produce
better results in most cases.
In scalar context, this method returns the first location result; and in
list context it returns all locations results.
Each location result is a hashref; a typical example looks like:
{
'geocode_quality' => '3a',
'point' => {
'lat' => '34.10156',
'lon' => '-118.33872'
},
'zoom_factor' => 14,
'address' => {
'postal_code' => '90028',
'country_code' => 'US',
'areas' => [ 'HOLLYWOOD', 'CA' ],
'display_name' => 'HOLLYWOOD, CA, 90028'
},
'geocode_score' => '0.409'
}
=head2 ua
$ua = $geocoder->ua()
$ua = $geocoder->ua($ua)
Accessor for the UserAgent object.
=head1 SEE ALSO
L<http://www.multimap.com/openapidocs/1.2/web_service/ws_geocoding.htm>
L<Geo::Coder::Bing>, L<Geo::Coder::Google>, L<Geo::Coder::Mapquest>,
L<Geo::Coder::Yahoo>
=head1 REQUESTS AND BUGS
Please report any bugs or feature requests to
L<http://rt.cpan.org/Public/Bug/Report.html?Queue=Geo-Coder-Multimap>.
I will be notified, and then you'll automatically be notified of progress on
your bug as I make changes.
=head1 SUPPORT
You can find documentation for this module with the perldoc command.
perldoc Geo::Coder::Multimap
You can also look for information at:
=over
=item * GitHub Source Repository
L<http://github.com/gray/geo-coder-multimap>
=item * AnnoCPAN: Annotated CPAN documentation
L<http://annocpan.org/dist/Geo-Coder-Multimap>
=item * CPAN Ratings
L<http://cpanratings.perl.org/d/Geo-Coder-Multimap>
=item * RT: CPAN's request tracker
L<http://rt.cpan.org/Public/Dist/Display.html?Name=Geo-Coder-Multimap>
=item * Search CPAN
L<http://search.cpan.org/dist/Geo-Coder-Multimap>
=back
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2010 gray <gray at cpan.org>, all rights reserved.
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
=head1 AUTHOR
gray, <gray at cpan.org>
=cut