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Authentication & Authorization: OAuth

via Udacity

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Overview

As a Python programmer, leveraging Flask allows you to quickly and easily build your own web applications. But before you share your apps on the Internet you should protect your users' data, ensuring information stored on your site is safe from unwanted manipulation. You could implement web security and permissions on your own, but relying on trusted providers is a faster, safer, and easier way to allow users to login to your application - without having to create and maintain another account, profile, and password.

In this course, you will learn to implement the OAuth 2.0 framework to allow users to securely login to your web applications. You'll be provided a restaurant menu application created in Flask. By the end of this course, you will write the necessary code to implement Google+ Sign-In and Facebook Login in options so users can create restaurant menus that are viewable by everyone but only modifiable by the original creator.



Why Take This Course?

OAuth 2.0 is a popular framework that allows users to login to your web application by using third party sign ins, from providers they've already created and trust, with the click of a button. And because passwords and sensitive data are never sent, your web application does not have to deal with the complexities of secure password storage and security breaches. Your users can then control the level of access your application has to their data, and change or revoke this access at any point in time.

Syllabus

Lesson 1 - Authentication vs. Authorization

Learn the difference between the concepts of authentication and authorization and address some major security concerns that developers must protect against when developing a web application. You will learn how OAuth 2.0 makes implementing security easier for developers and users alike by allowing your users to sign in to your applications while keeping all of the security on well-known and trusted OAuth providers. Finally, you will see OAuth 2.0 in action as you make API requests using Google's OAuth 2.0 Playground.

Lesson 2 - Creating a Google+ Sign-In

Learn about the different types of security flows your application can implement. You will see how security can be handled by your server, your user's browser, or both depending on the type of security your application needs. You will then add a Google+ Sign-In to an existing web application and implement a hybridized client/server flow.

Lesson 3 - Local Permission Systems

Add python code to create server-side rules that will constitute a permission system. This system will limit access of the database for each logged in user based on how the developer designs this code. You will add a User model model to your database to store the credentials, such as username, email, and profile picture, collected from the OAuth provider's API.

Lesson 4 - Adding Facebook & Other Providers

Learn to implement multiple OAuth providers on your web application. You will add Facebook Login as an alternative sign in option for your users and understand how to use OAuth provider documentation to add as many providers as you see fit for your application.

Taught by

Lorenzo Brown

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Reviews for Udacity's Authentication & Authorization: OAuth
4.0 Based on 3 reviews

  • 5 star 33%
  • 4 star 33%
  • 3 star 33%
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  • 1
Rogerio J
5.0 2 years ago
by Rogerio is taking this course right now, spending 4 hours a week on it and found the course difficulty to be medium.
For me that never implemented oauth before it's is very good because it goes step by step through an implementation of oauth2 authentication via Google. I recommend this course if you want to understand the concepts besides with working on the real code via Vagrant environment and Python code!
Was this review helpful to you? Yes
Shashank S
4.0 4 years ago
Shashank completed this course.
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Klaas N
3.0 4 years ago
Klaas completed this course.
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