opengraphParser.js

var http = require('http');

opengraphParser = function() {
  this.defaultOptions = function(){return {hostname: 'opengraph.io', path: '/api/1.0/site/'}}; 
  this.ogHybridParse = function(JSONPdata, next) {
    try {
      jsonData = JSON.parse(JSONPdata);
      next(null, jsonData);
    } catch (e) {
      next(e);
    }
    //return(jsonData.hybridGraph);
  };
};

opengraphParser.prototype.getHybridGraph = function(url, callback) {
  var options = new this.defaultOptions();
  var ogHybridParse = this.ogHybridParse;
  options.path = options.path + encodeURIComponent(url) + '?app_id=XXXXXXXXXXXXXXX';
  var req = http.get(options, function(res) {
    var JSONPdata = "";
    res.on('data', function(chunk) {
      JSONPdata = JSONPdata + chunk;
    }).on('end', function() {
      //hybridGraph = ogHybridParse(err,JSONPdata);
      ogHybridParse(JSONPdata, function(err, jsonData) {
        if(err) {
          callback("Unable to get HybridGraph data", null);
        } else {
          callback(null, jsonData.hybridGraph);          
        }
      });
      //if(hybridGraph) {callback(null, hybridGraph);}
      //else {callback("Unable to get HybridGraph data", null);}
    });
  });
  
  req.on('error', function(e) {
    callback("Unable to get HybridGraph data", null);
  });
};

exports.opengraphParser = opengraphParser;