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Web service usage limits  XML
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Penfold



Joined: 08/06/2006 10:40:34
Messages: 2
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Are there any restrictions on use of the webservices (specifically geocoding postcodes?) in terms of commercial/non-commercial use, bandwidth or requests/day? I tried a hunt round the site but couldn't find a note on this.
marc



Joined: 08/12/2005 07:39:47
Messages: 4271
Offline

Hi

There are no restrictions, however, the services are licensed with an 'attribution license'. It means it would be nice of you to give credit to geonames, if you are using the data or the web services. It does not matter whether you use the data or web service commercially or not.

If you want to help us defray the cost for our servers you can make a donation via Paypal or you can contact us to be invoiced.

If you plan to make an awful lot of requests per day, we can also set up a dedicated server for you only.

Marc

[WWW]
Anonymous



Terrific. Do you have a standard format or graphic for the credit/attribution?
marc



Joined: 08/12/2005 07:39:47
Messages: 4271
Offline

There is unfortunately no official geonames logo available yet. We don't have a designer among us and don't feel competent enough to create one.

Many users use a text like 'Powered by Geonames'.
Noiv from ExploreOurPla.net is using the following logo :

Marc

[WWW]
Anonymous



Great
I'll pop that up tomorrow morning, as well as a little note here on what we're doing.
Penfold



Joined: 08/06/2006 10:40:34
Messages: 2
Offline

Up - see http://www.perplexcity.com/help/stores/index.build

In a nutshell, we're providing a 'find your nearest retailer' service for players of the PerplexCity game. We have our own decent geocode tables for US and UK, stored in a MySQL table, but the rest get hived off to GeoNames, and we cache the result we get back in the table for later, so as to save bandwidth (GeoNames' and ours) and time (ours!) :)

... with a little piece of Perl that sorta looks like this:

Code:
		
 use URI::Escape;
 use XML::Simple;
 use LWP::UserAgent;
 use PXC::Geocode; # Class::DBI class referencing geocode table
 
 sub geocode
 {
     my $country = shift;
     my $postcode = shift;
 
     # first try the DB
 
     my $gc = PXC::Geocode->retrieve(postcode => $postcode, country_id => $country);
 
     if (defined $gc)
     {
         return ($gc->latitude, $gc->longitude);
     }
 
     # try GeoNames
 
     $postcode = uri_escape($postcode);
     $country = uri_escape($country);
 
     my $ua = LWP::UserAgent->new;
 
     my $url = "http://ws.geonames.org/postalCodeSearch?maxRows=1&postalcode=$postcode&country=$country";
     my $response = $ua->get($url);
 
     my $xml = XML::Simple->new;
 
     my $res = $xml->XMLin($response->content);
 
     if (exists $res->{code}->{lat})
     {
         my $lat = $res->{code}->{lat};
         my $lng = $res->{code}->{lng};
         PXC::Geocode->create( {
 					latitude => $lat,
 					longitude => $lng,
 					postcode => $postcode,
 					country_id => $country
 				}
 		);
        return ($lat, $lng);
     }
 }
 


[edited a bit to produce a standalone code fragment (barring the Class::DBI bit)]
 
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