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Additional Practice: BookLiker

Learning Goals

  • Access information from an API using a GET request and use it to update the DOM
  • Listen for user events and update the DOM in response
  • Send data to an API using a PATCH request

Introduction

Welcome to BookLiker, where you can look at books and like them! (Hey, not all startups are brilliant ideas.)

Getting Started

You will be using the json-server package to mock an external API. You can make the same RESTful requests to this server that you would to any API. If you haven't yet, install json-server.

$ npm install -g json-server

Then run the server with:

$ json-server db.json

This will serve your code on http://localhost:3000.

Deliverables

example GIF

You will be using the following backend to get the list of books. The expectation here is that you will include the following features:

List Books

When the page loads, get a list of books from http://localhost:3000/books and display their titles by creating a li for each book and adding each li to the ul#list element.

Show Details

When a user clicks the title of a book, display the book's thumbnail, description, and a list of users who have liked the book. This information should be displayed in the div#show-panel element.

Like a Book

A user can like a book by clicking on a button. Display a LIKE button along with the book details. When the button is clicked, send a PATCH request to http://localhost:3000/books/:id with an array of users who like the book, and add a new user to the list.

For example, if you are user 1 {"id":1, "username":"pouros"} and the previous array was "[{"id":2, "username":"auer"}, {"id":8, "username":"maverick"}], you should send as the body of your PATCH request:

{
  "users": [
    { "id": 2, "username": "auer" },
    { "id": 8, "username": "maverick" },
    { "id": 1, "username": "pouros" }
  ]
}

After clicking the like button, the user's name should also be displayed along with the list of users who have liked the book in the book details section.

Bonus: Un-Like a Book

If a user has already liked a book, clicking the LIKE button a second time should remove that user from the list of users who have liked the book.

Make a second PATCH request with the updated array of users, removing your user from the list. Also remove the user from the DOM.