Hands-on API testing learning paths

• Postman API testing practice: validate a resource and its missing case

  Build a two-request Postman collection that checks a successful JSON response and an intentional 404.

• Playwright API testing exercises: validate filtering and bad input

  Use Playwright request tests to check vegetarian filtering and an invalid query against a mock pizza API.

• REST Assured practice API: check JSON data and HTTP 418

  Write Java assertions for filtered coffee data and a deliberate non-success response.

• pytest API testing practice: verify ETag cache revalidation

  Use Python requests and pytest to prove that a conditional GET returns 304 without a response body.

60-minute educator lesson plan

Last updated 16 October 2026