API Testing Foundations
1h 34mIntermediate2023-10-16
Authors
Dave Westerveld
Test Developer with many years of testing experience
Course details
The ability to quickly and effectively test APIs is a critical skill for software testers and QA engineers. In this intermediate-level course, instructor Dave Westerveld covers the basics of API testing, sharing how to work with several industry-standard tools for testing APIs at scale in an organization. After providing a primer on web services and important API terminology, Dave shows how to use Postman for some basic API exploration. He then goes over some basic approaches and methodologies used in testing GET, POST, PUT, and DELETE requests; discusses some of the details of performance and security testing; and more.
Skills covered
PostmanAPIsFoundationsSoftware Development
Concepts
Introduction
- Standing out as an API tester
Understanding Web Services and APIs
- Introduction to web services
- Your first tool - Postman
- Understanding API terminology
- Types of APIs
Getting Started with API Testing
- Risks of using services and APIs
- Install and set up API challenges
- Exploring an API
- Challenge - API discovery
- Solution - API discovery
API Authorization
- Overview of authorization and authentication
- Basic auth in API calls
- Using authorization tokens
- Finding Bearer Tokens
- Setting up OAuth
Hands-On API Testing
- Testing GET calls
- Testing PUT calls
- Testing DELETE calls
- Challenge - Break the API
- Solution - Break the API
- Understanding POST calls
- Testing POST calls
- Challenge - Access protected endpoints
- Solution - Access protected endpoints
Additional API Testing Consideration
- Using mocks, stubs, and fakes in API testing
- API automation
- Performance testing
- Security testing
Conclusion
- Resources to keep learning