🧑🏾‍💻 prep

🔖
  1. CRUD
  2. PUT
  3. PUT Codealong with Mitch 📼
  4. CRUD Challenges
  5. Reading from the filesystem 📼
  6. Writing tests in Postman 📼
  7. Interactive Postman workspace
  8. Value and Work Not Done

CRUD Again

Learning Objectives

We are building a CRUD API. CRUD stands for Create, Retrieve, Update, Delete. If you think about it, this is what most applications do:

✨ Create some “resources” 🐕 Retrieve them (GET them) 📨 Update them 🗑️ Delete them

🎯 Goal

Our API will manage movie data. It will:

✨ Create a new movie, 🐕 Retrieve a list of movies or a single movie 📨 Update a movie

We will build this endpoint:

  1. PUT /movies/:movieId should update a movie (that matches the passed movieId)

👉 You should already have a project using the Node-Starter-Kit. If not, do last week’s prep before you go on.

📨 PUT

Learning Objectives

PUT /movies/:movieId should update a movie (that matches the passed movieId)

This means that PUT /movies/2 should update an movie with the id 2 and return 200 with JSON { success: true } to the user.

The code should look something like this:

app.put("/movies/:movieID", (req, res) => {
  console.log("PUT /movies route");
});

Remember, you have got to update the movie, not add it to the list.

Test that your API works by updating one of the movies.

💪🏾 CRUD Challenges

CHALLENGE 1:

Return the old version of the object you updated as well as the new value in the response

CHALLENGE 2:

Validate the request body to make sure the ID can’t be updated and that users can’t add additional fields

CHALLENGE 3:

Persist your changes to file so that you are able to return your updated values even after you restart the server

📮 🧪 Test Examples in Postman

Learning Objectives

You will need to create an account with Postman to complete this task. Follow along with the video Writing Tests in Postman with Examples.

📮 Interactive Postman Workspace

activity

  1. Given a user wants to see all the movies, when they make a GET request to /movies, then they should receive a list of all the movies.

  2. Given a user wants to see a single movie, when they make a GET request to /movies/:movieId, then they should receive a single movie.

  3. Given a user wants to add a movie, when they make a POST request to /movies, then they should receive a success message.

  4. Given a user wants to update a movie, when they make a PUT request to /movies/:movieId, then they should receive a success message.

Prep Value and Work Not Done

Learning Objectives

Introduction

We don’t have jobs just to fill the time. We should focus our efforts on delivering as much value as we can. You don’t have to finish everything on your to-do list. Whenever you choose to do something, you implicitly choose not to do something else. Learn to identify some tasks that will deliver more value in your available time.

A typical project can be measured at several stages. The latter measures are closer to value, but these are harder to quantify:

  • Inputs → Effort → Outputs → Outcomes → Impact

Measuring Value

🎯 Goal: To read and learn about measuring value: its outputs, outcomes, and impact. (30 minutes)

Five Types of Value

🎯 Goal: To read and learn about different types of value. (30 minutes)