How is API testing done?

Related questions

1. Is API testing black box testing?
2. Is Postman an automation tool?
3. What does API testing do?
4. What do you test in API testing?
5. What is API testing in selenium?
6. Is API testing black box or Whitebox?
7. What is API example?
8. What is the difference between API testing and UI testing?
9. What is SOAP API testing?
10. Why API testing is important?

Tags

1. #directly
2. #programming
3. #integration
4. #reliability
5. #since
6. #determine
7. #performance
8. #message
9. #performed
10. #functionality
11. #layer
12. #security
13. #involves
14. #testing
15. #interfaces
16. #application
17. #expectations