How to secure your REST API from attackers by Ivan Novikov

August 16, 2021

API stands for application programming interface, which basically means that we have an exposed interface that can be addressed programmatically. As the internet becomes available in more and more locations around the world, the types of interfaces will become ever more prevalent. Securing an API can easily cost as much as the feature development itself and it can even cost more, which is why we decided to write this article in the hopes of guiding you throughout this wild landscape. Even though we are well aware that REST APIs are not the only kind, they serve a specific purpose and we want to make sure the security risks are understood when implementing such a REST API.

What is a REST API?

REST stands for Representational state transfer, which means that it defines a programming architecture that uses the HTTP Methods (GET/POST/DELETE/PATCH/...). Using these HTTP-methods allows us to create our APIs independent of what host OS it will run on. The following properties have to be fulfilled before we can speak of a RESTful API:

  • Works on the CLIENT-SERVER architecture where the clients use HTTP calls to communicate with the APIs
  • RESTful APIs are stateless, which means they do not account for already known information of the object that is being processed. These so-called states will never be passed between....

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