code: function get(uuid, callback) {
    if(!util.isFunction(callback)) {
      throw new Error('callback must be a function');
    }
  
    var order_url = this.coinjar.merchant.orders_endpoint + '/',
      resource = this.coinjar.merchant.api_endpoint +
        '/v1/orders/' +
        uuid +
        '.json';
  
    request.get(resource)
      .auth(this.coinjar.merchant.uuid, this.coinjar.merchant.secret)
      .end(function (response) {
        if(isResponseError(response, callback)) { return; }
        // build the payment page url
        response.body.order.payment_page_url = order_url + response.body.order.uuid;
        return callback(null, response.body.order);
      });
  }
docs: @name get
  @description
  Specified Order for merchant account.
  
  @params {String} uuid
  @params {Function} callback