hook.io microservice for getting crypto-coin price data from coinmarketcap.com

coinHook.js

module['exports'] = function getCoin (hook) {
  var request = require('request');
  var url = 'http://coinmarketcap-nexuist.rhcloud.com/api/' + hook.params.coin;
  request(url, { json: true }, function (err, response, body) {
    if (hook.params.currency !== 'all') {
      // if a specific currency is selected, filter the results
      return hook.res.end(body['price'][hook.params.currency]);
    } else {
      // else, send all coin data back
      hook.res.end(JSON.stringify(body));
    }
  });
};
 
module['exports'].schema = {
  "coin": {
    "type": "string",
    "format": "select",
    "default": "btc",
    "enum": ["btc", "ltc", "doge", "ppc"]
  },
  "currency": {
    "type": "string",
    "format": "select",
    "default": "all",
    "enum": ["all", "usd", "eur", "cny", "cad", "rub", "btc"]
  }
};