01Overview
Role of an API Tester
API testers focus on the backend functionality of software applications, verifying how different systems communicate through Application Programming Interfaces (APIs)
Key Responsibilities
The typical responsibilities of an API tester include:
- Designing and developing API test plans and test cases based on requirements, API documentation, and intended user flows
- Executing test cases, both manually and via automation tools, for validating GET, POST, PUT, DELETE, and PATCH requests
- Validating API responses, including status codes, payload data, response time, headers, and overall data integrity
- Identifying, reporting, and tracking defects, inconsistencies, or performance issues and collaborating with developers to implement fixes
- Performing different types of API testing, such as functional, integration, regression, security, load, stress, and contract testing .
- Automating API testing using tools and frameworks like Postman, SoapUI, Rest Assured, JMeter, or Katalon Studio, and integrating tests into CI/CD pipelines for continuous testing
- Documenting test results and metrics, providing actionable insights, and participating in code reviews to suggest improvements in API design
- Ensuring APIs meet functional and non-functional requirements, such as reliability, scalability, and security standards .
