New users controller - get method

user.js

// [GET] /user/{id}
UserController.prototype.get = function (request, reply) {
  let id = request.params.id;

  this.model.findOneAsync({_id: id})
  .then((user) => {
    if (!user) {
      return reply.notFound('User not found for the id: '+id);
    }

    reply(user);
  })
  .catch((err) => {
    reply.badImplementation(err.message);
  });
};