Self link for current resource in Rest API - Mini Project: Build & Apply

Creating a Self Link for Current Resource in REST API

📖 Scenario: You are building a simple REST API that returns information about books. Each book resource should include a self link that points to its own URL. This helps clients know where to find or update the book.

🎯 Goal: Build a REST API response that includes a self link for the current book resource.

📋 What You'll Learn

Create a dictionary called book with keys id, title, and author with exact values

Create a variable called base_url with the exact string "http://api.example.com/books"

Add a self key to the book dictionary with the value as the full URL to the current book using base_url and book["id"]

Print the book dictionary

💡 Why This Matters

🌍 Real World

APIs often include self links so clients can easily find the URL to the current resource for reading or updating.

💼 Career

Understanding how to build self links is important for backend developers creating REST APIs and for frontend developers consuming them.

1

Create the book data dictionary

Create a dictionary called book with these exact entries: 'id': 42, 'title': 'The Art of REST', and 'author': 'Jane Doe'.

Rest API

# Create the book dictionary with id, title, and author
# Your code here

Need a hint?

Use curly braces to create a dictionary and separate keys and values with colons.

2

Create the base URL variable

Create a variable called base_url and set it to the string "http://api.example.com/books".

Rest API

book = {'id': 42, 'title': 'The Art of REST', 'author': 'Jane Doe'}
# Create the base_url variable with the API base URL
# Your code here

Need a hint?

Use double quotes for the string and assign it to base_url.

3

Add the self link to the book dictionary

Add a new key 'self' to the book dictionary. Its value should be the full URL string combining base_url, a slash, and the book's id. Use an f-string for this.

Rest API

book = {'id': 42, 'title': 'The Art of REST', 'author': 'Jane Doe'}
base_url = "http://api.example.com/books"
# Add the 'self' key to book with the full URL
# Your code here

Need a hint?

Use an f-string to combine base_url and book['id'] with a slash.

4

Print the book dictionary with self link

Write a print statement to display the book dictionary.

Rest API

book = {'id': 42, 'title': 'The Art of REST', 'author': 'Jane Doe'}
base_url = "http://api.example.com/books"
book['self'] = f"{base_url}/{book['id']}"
# Print the book dictionary
# Your code here

Need a hint?

Use print(book) to show the dictionary with the self link.