How does OAuth2 work? - an extremely simple explanation

The article 'OAuth2 Explained with Cute Shapes' on Back Market's engineering blog provides an accessible explanation of the OAuth2 authorization standard, which is becoming increasingly popular among web application developers. The author begins by discussing the basic concepts related to OAuth2, such as clients, authorization servers, and resources. It explains that OAuth2 allows third-party applications to access user resources without disclosing the user's password. Different flow types are described, such as Authorization Code, Implicit, Resource Owner Password Credentials, and Client Credentials, with particular attention to their applications and usage scenarios. Additionally, the author presents diagrams and illustrations that facilitate understanding the mechanisms of OAuth2, making the article more approachable for those without deep technical knowledge.

The next part of the article focuses on security. The author emphasizes that while OAuth2 simplifies resource access management, it requires proper security practices. Risks such as phishing attacks and the necessity of securely storing access tokens, which are crucial for security, are highlighted. Readers also learn about the importance of maintaining security policies and implementing best practices in authorization.

The article also includes information on potential implementations that provide integration with OAuth2 standards. The author encourages using libraries and tools that can assist developers in such integration, significantly simplifying the process of creating applications that utilize this standard. Additionally, examples of popular services that use OAuth2 are provided, which can serve as inspiration for coders.

Finally, the article encourages experimenting with different flows and getting familiar with documentation to explore further possibilities that OAuth2 offers. It also focuses on the fact that authorization systems evolve, making it essential to continually learn and adapt to the changing technological needs.

In summary, 'OAuth2 Explained with Cute Shapes' is a great introduction to the topic of authorization in web applications. With its approachable style and visual aids, both novices and experienced developers will find valuable information that can assist them in working with OAuth2. We encourage readers to check out the full article and delve deeper into this critical issue related to data security and application development.