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A Comprehensive Guide to Testing API Calls with Jest

Max L.9 min readDec 12, 2024Technology

Max L.9 min read

Contents:

What is Jest?

Installing and setting up Jest

Tips for keeping your tests clean and maintainable

Making API calls in JavaScript

Mocking API calls with Jest

Writing unit tests for GET requests

Testing POST requests with Jest

Testing PUT requests with Jest

Testing PATCH requests with Jest

Testing DELETE requests with Jest

How to handle asynchronous code in Jest

Error handling in API tests

Advanced Jest features for API testing

Final words on JEST API testing

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