Advanced Search

Return to Snippet

Revision: 57098
at May 16, 2012 02:12 by chrisaiv
Initial Code 
var cradle  = require("cradle"),
    sys     = require("sys"),
    fs      = require("fs");

var connection  = new(cradle.Connection)("localhost", 5984);
var db          = connection.database('geoexample');

data            = fs.readFileSync("./json/data_flickr.json", "utf-8");

flickr          = JSON.parse(data);

for(p in flickr.photos.photo){
    photo = flickr.photos.photo[p];

    photo.geometry = {"type":"Point",
                      "coordinates": [ photo.longitude, photo.latitude ]
                      };

    // Save the url to the flickr image.
    // http://farm{farm-id}.static.flickr.com/{server-id}/{id}_{secret}_[mstzb].jpg

    photo.image_url_small = "http://farm"+photo.farm+".static.flickr.com/"+photo.server+"/"+photo.id+"_"+photo.secret+"_s.jpg";

    db.save(photo.id, photo, function(er, ok) {
            if (er) {sys.puts("error: "+er); return;}
        });
}
Initial URL 
http://api.flickr.com/services/rest/?method=flickr.photos.search&api_key=API_KEY&text=kitty+kat&has_geo=true&extras=geo&per_page=1000&format=json&nojsoncallback=1
Initial Description 
The Flickr URL creates a JSON feed with geo-based photos.  Using Node.js, CouchDB, and cradle (npm install cradle), you can ingest the JSON data into CouchDB and perform complicated spatial indexing queries.  The command for the import is bash$ node name_of_this_javascript.js
Initial Title 
Node.js: Import geo-based Flickr data into CouchDB
Initial Tags 

                                

                                                            

                                    

                                        

                                        Initial Language
                                        

                                    

                                    
JavaScript