There are many different types of API testing, but some of the most common include:

• Functional testing: This type of testing verifies that the API functions as expected and meets its requirements. Functional tests typically involve sending requests to the API and checking the responses.
• Non-functional testing: This type of testing focuses on the performance, security, and reliability of the API. Non-functional tests may include load testing, stress testing, and penetration testing.
• Unit testing: This type of testing focuses on individual components of the API, such as individual endpoints or functions. Unit tests typically involve mocking or stubbing out other parts of the API in order to isolate the component being tested.
• Integration testing: This type of testing verifies that the API integrates properly with other systems. Integration tests may involve sending requests to the API from other systems and checking the responses.
• UI testing: This type of testing verifies that the user interface for the API is easy to use and meets its requirements. UI tests typically involve interacting with the API through its user interface and checking the results.

In addition to these general types of API testing, there are also a number of more specific types of tests that can be performed, such as:

• Security testing: This type of testing focuses on identifying and fixing security vulnerabilities in the API. Security tests may include penetration testing, fuzz testing, and static analysis.
• Performance testing: This type of testing focuses on measuring the performance of the API under load. Performance tests may involve sending a large number of requests to the API and measuring the response time.
• Load testing: This type of testing focuses on determining how much load the API can handle before it starts to degrade. Load tests typically involve sending a large number of requests to the API and gradually increasing the load until the API fails.
• Stress testing: This type of testing focuses on determining how well the API performs under extreme load. Stress tests typically involve sending a very large number of requests to the API in a short period of time.

Rajesh Kumar

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