Node/Express Lesson 6 Coding Assignment

Review Lesson Material

Create a new git branch called week6. This should be created when the week5 branch is active, so that it adds to week 5’s work. If you’ve made any changes to the week5 branch due to reviews on your PR, make sure to update your week6 branch by following the instructions from Lesson 4 Continue to work in the node-express-course/03-task-manager/starter directory. You duplicate the work of the instructor in the video.

Additional Assignment

Create a file in the starter directory called QuizAnswers2.txt. Put answers to the following questions in it.

1. In this lesson, you created a middleware function called asyncWrapper. Why?
2. Suppose that you want to make sure that both a status code and an error message are sent back to the user when they request the URL for a task that does not exist. Assume that you’ve created a CustomAPIError class and an error handler that references that class. Complete the code:

const getTask = asyncWrapper(async (req, res, next) => {
  const { id: taskID } = req.params;
  const task = await Task.findOne({ _id: taskID });
  if (!task) {
    // your code here
  }
  res.status(200).json({ task });
});

As you will see in the lessons that follow, you do not have to always create the asyncWrapper middleware, because you can instead use an NPM package called express-async-errors that provides the same capability.