what's the best way to send a variable using method get with express, mysql and node.js

I'm building a web site using node.js express MySQL and boostrap, when I try to send a variable against method get for to do a query to the database, it's seem doesn't work, because there's no a good render. this is my code:

app.get('/reservaciones/leer/:id', function(req, res) {
            var idreservacion = req.params.idreservacion;
            crud.get_leer_reservacion(req,idreservacion,function(data_leer){

               res.render'../views/leer.html',data:data_leer});
            });
    });

exports.get_leer_reservacion = function(req,idreservacion,fn){
// here the query
connection.query('select * from reservacion where idreservacion = '"+idreservacion+"'', function(err,rows){
if(err){
throw err;
}
return fn(rows);
});
};

http://ift.tt/1EHXqzP