19 articles
Spec-first API testing built on OpenAPI: contract validation, schema-driven test generation, and migration guides from Swagger and legacy formats.
A Karate framework tutorial for API testing: Gherkin .feature files with no step-definition code, built-in match assertions, Scenario Outline data-driven tests, and running the suite in CI/CD with Maven.
A Cypress API testing tutorial: cy.request() basics, chaining requests with aliases, custom commands for auth, parametrized tests, and running the suite in CI/CD — with working JavaScript for every example.
Swagger vs Postman explained — spec-first versus request-first, what each tool owns, the 10 differences that decide the workflow, and how to convert between them.
A complete guide to API testing with Playwright: the request fixture, ajv schema validation, parametrized tests, custom auth fixtures, and a GitHub Actions pipeline — with working TypeScript for every example.
A hands-on REST Assured tutorial for Java API testing: fluent given-when-then syntax, JSON schema validation, parametrized tests with JUnit 5, and a Maven-based GitHub Actions CI pipeline — with working code.
A hands-on tutorial for testing REST APIs with Python: pytest fixtures, the requests library, JSON schema validation, parametrized tests, and a GitHub Actions CI pipeline — with working code for every example.
Step-by-step: how to turn an OpenAPI spec into a complete, CI-ready test suite using AI — spec prep, the parse/reason/author/validate/deliver pipeline, tool comparison, and a 7-day rollout plan.
Every difference between OpenAPI 3.0 and 3.1 — JSON Schema 2020-12 compatibility, nullable handling, webhooks, exclusiveMinimum/Maximum — with before/after YAML for each change and a step-by-step migration checklist.
Schema-first API development designs the OpenAPI contract before writing implementation code, enabling parallel work, auto-generated tests, mock servers, and continuous contract enforcement. The 2026 playbook for engineering teams.
