OAuth 2.0 overview in Rest API - Mini Project: Build & Apply

OAuth 2.0 Overview with REST API

📖 Scenario: You are building a simple REST API client that needs to access a protected resource using OAuth 2.0 authorization. OAuth 2.0 is a way to let your app access user data safely without asking for passwords.

🎯 Goal: Learn the basic steps of OAuth 2.0 by creating a simple data structure for client credentials, setting up an authorization URL, simulating an access token request, and printing the final access token.

📋 What You'll Learn

Create a dictionary with OAuth 2.0 client credentials

Add a variable for the authorization endpoint URL

Simulate requesting an access token using a dictionary comprehension

Print the access token value

💡 Why This Matters

🌍 Real World

OAuth 2.0 is widely used to let apps access user data securely without sharing passwords, such as logging in with Google or Facebook.

💼 Career

Understanding OAuth 2.0 basics is essential for developers working with APIs, authentication, and secure app integrations.

1

Set up OAuth 2.0 client credentials

Create a dictionary called client_credentials with these exact entries: 'client_id': 'abc123', 'client_secret': 'secretXYZ', and 'redirect_uri': 'https://example.com/callback'.

Rest API

# Create the client_credentials dictionary with client_id, client_secret, and redirect_uri
# Your code here

Need a hint?

Use curly braces to create a dictionary and include the exact keys and values as strings.

2

Add the authorization endpoint URL

Create a variable called auth_url and set it to the string 'https://authserver.com/authorize'.

Rest API

client_credentials = {
    'client_id': 'abc123',
    'client_secret': 'secretXYZ',
    'redirect_uri': 'https://example.com/callback'
}
# Create the auth_url variable with the authorization endpoint URL
# Your code here

Need a hint?

Assign the exact URL string to the variable auth_url.

3

Simulate requesting an access token

Create a dictionary called access_token_response using a dictionary comprehension that includes keys token_type with value 'Bearer' and access_token with value 'token12345'.

Rest API

client_credentials = {
    'client_id': 'abc123',
    'client_secret': 'secretXYZ',
    'redirect_uri': 'https://example.com/callback'
}
auth_url = 'https://authserver.com/authorize'
# Create access_token_response dictionary using a dictionary comprehension
# Your code here

Need a hint?

Use a dictionary comprehension to create the dictionary from a list of tuples.

4

Print the access token

Write a print statement to display the value of access_token_response['access_token'].

Rest API

client_credentials = {
    'client_id': 'abc123',
    'client_secret': 'secretXYZ',
    'redirect_uri': 'https://example.com/callback'
}
auth_url = 'https://authserver.com/authorize'
access_token_response = {key: value for key, value in [('token_type', 'Bearer'), ('access_token', 'token12345')]}
# Print the access token value
# Your code here

Need a hint?

Use print(access_token_response['access_token']) to show the token.