gistfile1.txt

public updateTask(request: Hapi.Request, reply: Hapi.IReply) {
      let userId = request.auth.credentials.id;
      let id = request.params["id"];
      let task: ITask = request.payload;

      //the database needs to be wrapped in a Reader here.
      this.database.taskModel.findByIdAndUpdate({ _id: id, userId: userId }, { $set: task }, { new: true })
          .then((updatedTask: ITask) => {
              //this if needs to be replaced by a monad here.
              if (updatedTask) {
                  reply(updatedTask);
              } else {
                  reply(Boom.notFound());
              }
          }).catch((error) => {
              reply(Boom.badImplementation(error));
          });
  }