intermediate

Implementing OAuth and API Key Authentication with Java

Learn to implement secure OAuth 2.0 and API key authentication in Java/SpringBoot. Build real-world login flows, defend against common vulnerabilities, and integrate robust authentication for modern applications.

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Verified skills you'll gain

INTERMEDIATE

API and Web Services Security

INTERMEDIATE

Secure Coding Practices and Code Review

Tools you'll use

Java

Spring Boot

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Course 2

OAuth Advanced Features & Integration

3 lessons

9 practices

Build upon OAuth fundamentals to implement account linking, unified authentication, and error handling. Create production-ready OAuth systems with mock providers. Learn to identify common security pitfalls and implement robust defensive measures for real-world OAuth integrations.

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Course 3

API Key Authentication & Security

3 lessons

10 practices

This course covers implementing basic API key authentication alongside your existing OAuth system. You will learn to generate API keys, authenticate requests, and manage key security. The course follows an **offense-defense approach**, demonstrating simple API key vulnerabilities before implementing secure solutions.

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From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11