AJAX Authentication and Cross-Origin Requests

AJAX Authentication and Cross-Origin Requests

This course is part of AJAX Next Level: Authentication, Servers, Projects & More Specialization

Instructor: Packt - Course Instructors

Sponsored by Louisiana Workforce Commission

2 modules

Gain insight into a topic and learn the fundamentals.

Intermediate level

Recommended experience

6 hours to complete

3 weeks at 2 hours a week

Flexible schedule

Learn at your own pace

2 modules

Gain insight into a topic and learn the fundamentals.

Intermediate level

Recommended experience

6 hours to complete

3 weeks at 2 hours a week

Flexible schedule

Learn at your own pace

What you'll learn

Explain the process of configuring Apache servers and managing .htaccess files
Demonstrate how to securely transmit user credentials using Base64 encoding
Develop AJAX applications that incorporate advanced authentication and server configuration techniques
Assess the benefits of upgrading legacy code from XHR to Fetch API for improved performance and security

Details to know

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Assessments

1 assignment

Taught in English

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This course is part of the AJAX Next Level: Authentication, Servers, Projects & More Specialization

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There are 2 modules in this course

Unlock the power of HTTP Basic Authentication to enhance the security of your AJAX applications. This course starts with an introduction to the fundamental principles of authentication, explaining why it’s crucial for web security. You will explore how AJAX leverages HTTP Basic Authentication by passing user credentials, using practical examples that demonstrate these concepts in action.

Delve deeper into the technicalities of Basic HTTP Authentication, learning about the role of the XHR object and the significance of Base64 encoding. The course guides you through setting up and configuring an Apache server, a key skill for any developer working with web technologies. You'll gain hands-on experience in creating and securing web forms, configuring .htaccess files, and implementing custom error messages to handle unauthorized access. Finally, transition to modern practices with the Fetch API, ensuring you're up-to-date with the latest web development standards. By the end of this course, you will have a comprehensive understanding of how to secure your AJAX requests using HTTP Basic Authentication, setting a strong foundation for your future web development projects. This course is designed for web developers and IT professionals looking to enhance the security of their web applications. A basic understanding of AJAX, HTTP, and JavaScript is recommended. Familiarity with server-side concepts and command-line tools will be beneficial but not required.

In this module, we will dive into HTTP Basic Authentication, a critical concept for securing web applications. We will start with an overview of the Basic Authentication scheme, followed by practical examples using the XMLHttpRequest object to pass user credentials. Additionally, we will set up an Apache server, configure authentication, and transition to using the Fetch API for modern AJAX requests. Through hands-on exercises, you will learn how to create secure web applications and understand the importance of server-side code in authentication processes.

What's included

29 videos2 readings

29 videosTotal 170 minutes

Introduction to Authentication4 minutesPreview module
Basic HTTP Auth in Action11 minutes
How Basic Authentication Works and Why Are We Discussing it in this Course8 minutes
Base64 Encoding Versus Encryption1 minute
Basic Authentication Compared to Traditional HTTP Requests7 minutes
What Is Apache?4 minutes
Strike the Right Balance1 minute
How to Start an Apache Server4 minutes
Setting Up Our Apache Server and .htaccess File8 minutes
Adding Basic Authentication in Apache11 minutes
What Are We Going to Build1 minute
Building the HTML5 minutes
The preventDefault Method3 minutes
Sending User Credentials with AJAX, with Custom base64 Encoding12 minutes
Using XHR for Basic Authentication2 minutes
Creating a Custom Error Message in Apache2 minutes
Updating Our Code to the Modern Fetch API3 minutes
Node Example - What Are We Going to Build?3 minutes
What is a Node Server?2 minutes
Setting Up Our Node Server8 minutes
Checking Whether the Authorization Header Exists10 minutes
Extract User Credentials Using Buffer8 minutes
No Server-Side Language is Perfect1 minute
Finishing Off Our Node Example6 minutes
The next() Function Stops Middleware4 minutes
More about the next() Function14 minutes
Spotted an Error4 minutes
Basic Authentication - Section Summary6 minutes
Section Outro0 minutes

2 readingsTotal 20 minutes

Introduction to the Course 'AJAX Authentication and Cross-Origin Requests'10 minutes
Full Specialization Resources10 minutes

In this module, we will delve into the complexities of Cross-Origin Resource Sharing (CORS) and Same-Origin Policy (SOP), foundational concepts for web security. We will explore the different types of CORS requests, including simple and preflight requests, and understand their roles in enabling secure cross-site communications. Additionally, we will learn how to configure servers to properly handle these requests, ensuring secure and functional web applications.