How to test GraphQL APIs — the real differences from REST testing, working code in the frameworks you already use, and the tools built specifically for GraphQL exploration and testing.
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.
Apidog and Postman both handle API design, testing, and documentation, but their architectural models differ fundamentally. Apidog treats the OpenAPI spec as the single source of truth, while Postman converts specs into independent collections. This focused comparison covers the differences that matter for team productivity.
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.
Migrating from Swagger 2.0 to OpenAPI 3.x unlocks richer test generation, better schema validation, and modern tooling. This step-by-step guide covers spec conversion, test suite updates, and CI/CD pipeline adjustments.
Compare the best OpenAPI testing tools for automated test generation, contract validation, and CI/CD integration. Side-by-side analysis of Shift-Left API, Schemathesis, Dredd, Postman, and more.
A complete guide to API regression testing in 2026 — strategy, tooling, automation patterns, change detection, and CI/CD integration — with the architecture, best practices, and metrics modern engineering teams rely on to ship without breaking consumers.
What API schema validation is, how to validate requests and responses against an OpenAPI contract in tests, in CI and at the API gateway, the tools that do it (Ajv, Schemathesis, Prism, REST Assured, Postman), and how to catch schema drift.
Ten Postman alternatives for API testing compared honestly: open-source and free clients, VS Code options, enterprise suites and spec-driven automation, with pricing, licence, CI/CD fit and how to migrate your collections.
