September 2018
Intermediate to advanced
230 pages
5h 11m
English
Content preview from Designing Web APIs
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Chapter 3. API Security
Security is a critical element of any web application, particularly so for APIs. New security issues and vulnerabilities are always being discovered, and it’s important to protect your APIs from attacks. A security breach can be disastrous—poor security implementations can lead to loss of critical data as well as revenue.
To ensure an application is secure, there are many things engineers tend to do. This includes input validation, using the Secure Sockets Layer (SSL) protocol everywhere, validating content types, maintaining audit logs, and protecting against cross-site request forgery (CSRF) and cross-site scripting (XSS). All of these are important for any web application, and you should be doing them. Beyond these typical web application security practices, there are additional techniques that apply specifically to web APIs that you expose to developers outside your company. In this chapter, we look closely at those best practices and how companies are securing APIs in practice.
Authentication and Authorization
Authentication and authorization are two foundation elements of security:
- Authentication
The process of verifying who you are. Web applications usually accomplish this by asking you to log in with a username and password. This combination is checked against an existing valid username/password record to ensure the request is authentic.
- Authorization
The process of verifying that you are permitted to do what you are trying to do. For instance, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.