geocode

This example loads data from iss-now.json and calls the google maps geocode API via the geocoder package. The results will be written to the file geocoded-iss-now.json. Be aware that you need to limit the request. You cant fire hundrets of requests directly. Thats why the code uses a setInterval function.

Run it like this:

cd path/to/steel-ant-input-output/examples-nodejs/geocode
npm install
node index.js

index.js

var geocoder = require('geocoder');
// Reverse Geocoding
var fs = require('fs');
var res = [];
fs.readFile('iss-now.json', 'utf8', function(err, data) {
  if (err !== null) throw err;
  var json = JSON.parse(data);
  var i = 0;
  var timer = setInterval(function() {
    console.log('json[i] ', json[i]);
    var pos = json[i].iss_position;
    var lat = pos.latitude;
    var lon = pos.longitude;
    geocoder.reverseGeocode(lat, lon, function(err, data) {
      // do something with data
      if (err !== null) throw err;
      console.log(data);
      res.push(data);
      i++;
      if (i >= 50 /*json.length*/ ) {
        fs.writeFile('geocoded-iss-now.json', JSON.stringify(res), 'utf8', function(err) {
          if (err) throw err;
          console.log('wrote data to file');
          clearInterval(timer);
        });
      }
    });

  }, 3000);


});

package.json

{
  "name": "wiki-lookup",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "geocoder": "^0.2.2"
  }
}