Do you have questions about how to unit test your REST API? Learn 3 types of tests you should have in your test suite and how to write them.

Testim.io

Learn the importance of proper testing in building high-quality REST APIs and discover the three key types of automated tests you should have in your test suite: unit tests, integration tests, and UI tests. Understand the role of each test type and how to implement them effectively to ensure your application remains stable and bug-free through continuous changes and refactoring.

Unit Test a REST API? Everything You Need to Know

Not reading the nonsense, you literally can’t “unit test” a whole REST API. And maybe it’s misleading statements and article titles like that which have us currently porting all of our Testim automated tests to Playwright and our backend unit/integration tests…

The article is indeed a bit misleading as a REST API will never be, by pure definition, unit testable but the body of article itself explains what is and what is not a unit test (and other types of tests).
The article is simple but goes straight to the points with good examples. Nice one!