What is API Testing and its purpose?

Question

Accepted Answer

API Testing is testing the application programming interface to ensure it meets functionality, reliability, performance, and security requirements.

API Testing involves testing the communication between different software systems through APIs.
It ensures that the API functions correctly, returns the expected results, and handles errors gracefully.
API Testing can be done at different levels such as unit testing, integration testing, and end-to-end testing.
Tools like Postman, SoapUI, and JMeter are commonly used for API Testing.
Examples of API Testing include testing the response time of an API call, verifying data accuracy in API responses, and checking for proper error handling.