negotiator-currency/examples/currency.js

HTTP content negotiation (plus currency)

(function() {
  var Negotiator, availableCurrencies, http, key, values, server, val;

  Negotiator = require('../lib/negotiator').Negotiator;

  http = require('http');

  values = {
    usd: 21.00,
    eur: 19.00
  };

  availableCurrencies = (function() {
    var _results;
    _results = [];
    for (key in values) {
      val = values[key];
      _results.push(key);
    }
    return _results;
  })();

  server = http.createServer(function(req, res) {
    var currency, negotiator;
    negotiator = new Negotiator(req);
    console.log("Accept-Currency: " + req.headers['accept-currency']);
    console.log("Preferred: " + (negotiator.preferredCurrencies()));
    console.log("Possible: " + (negotiator.preferredCurrencies(availableCurrencies)));
    currency = negotiator.preferredCurrency(availableCurrencies);
    console.log("Selected: " + currency);
    if (currency) {
      res.writeHead(200, {
        'Content-Currency': currency
      });
      return res.end(values[currency].toFixed(10));
    } else {
      res.writeHead(406);
      return res.end();
    }
  });

  server.listen(8080);

}).call(this);