The latest articles on DEV Community by S Balaji (@balaji_qa). https://dev.to/balaji_qa https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4145000%2Fe07298f9-13e5-4f6d-bd04-1c8705d77f82.png https://dev.to/balaji_qa en S Balaji Sun, 27 Sep 2026 02:20:31 +0000 https://dev.to/balaji_qa/from-manual-qa-to-api-testing-postman-collections-that-mirror-real-test-strategy-445b https://dev.to/balaji_qa/from-manual-qa-to-api-testing-postman-collections-that-mirror-real-test-strategy-445b <p>Manual QA folks often get “learn Postman” without a map. Clicking Send is not a strategy.</p> <p>A simple ladder:</p> <ol> <li> <strong>Smoke the contract</strong> — status codes + critical fields for happy path.</li> <li> <strong>Negative cases that matter</strong> — auth missing, bad IDs, empty required fields.</li> <li> <strong>Environments as data</strong> — base URL, tokens, IDs stay out of hard-coded requests.</li> <li> <strong>Assertions that protect the business</strong> — not “response exists,” but “status is one of …”.</li> <li> <strong>A thin suite you can re-run</strong> — folder = risk area; name tests like a bug title.</li> </ol> <p>I put that path into a short Udemy course I created (disclosure). You can preview free lessons on the course page before buying:</p> <p><a href="https://www.udemy.com/course/api-testing-mastery-from-postman-to-test-architect/?couponCode=APIPOST12" rel="noopener noreferrer">https://www.udemy.com/course/api-testing-mastery-from-postman-to-test-architect/?couponCode=APIPOST12</a></p> <p>Coupon expires Oct 27.</p> <p>Optional companion PDF checklist pack (not a video dump): <a href="https://balajileon.gumroad.com/l/ppcdfq" rel="noopener noreferrer">https://balajileon.gumroad.com/l/ppcdfq</a></p> testing qa postman api