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The Ultimate API Guide for Quality Assurance Testers
- APIs are instrumental in quality assurance as means for consistent data and constant connectivity.
- API testing checks the security, performance, and reliability of an API, as well as verifying integration and interactions with specific software.
- What does the API do, how should it behave, endpoints to be tested, expected error codes and messages, and testing tools are key areas to consider while API testing.
- API testing tools include Postman, Apigee, and Apache’s JMeter.
- API functional testing can verify pagination support and how CRUD commands are supported, while security testing ensures security through authentication verification, token security, and prevention of unauthorized access.
- API Performance testing can test response time, latency time, and database query time.
- As an API security testing best practice, QA testers must run API tests to configure correctly and include those with intentional errors. It is also better to automate API testing whenever possible.
- APIs are here to stay in the development process landscape. Therefore, QA professionals should master API testing to ensure delivering their best work as efficiently as possible.
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