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API Automated Tests on Postman and Newman with CI Execution

136 views#2627
CategoryQA (testing)
Listing period8 daysuntil 25.11.2026
Posted27.08.2026
Views13616 in 14 days

About the service

I build automated API tests in Postman and run them headless through Newman so your backend is verified on every release, not just when someone remembers to manually poke requests around. Work begins by reviewing your endpoints: each becomes a collection with meaningful checks — response codes, response body schema, key business fields, headers, time constraints, and error handling. Instead of a chaotic pile of requests you get a structured, version-controlled set of tests that also documents how your API should actually behave, which anyone on the team can read and extend.

I pay special attention to what makes automation reliable rather than just impressive in a demo. I set up environments for local, staging, and production so the same collection works everywhere with different variables. I add data-driven runs across datasets from CSV or JSON, chain requests together when a token or ID from one call is needed by the next, and spin up mock servers if a dependency isn't ready yet. Authorization, pagination, limits, and negative scenarios are handled explicitly rather than taken on faith.

In the end everything integrates into your pipeline. Newman runs collections in CI on every push or nightly, delivers understandable HTML and JUnit reports, and fails the build the moment the contract breaks. I deliver documented collections, environment files, and a short instruction so your team owns the tests, not just me. The bottom line is simple: real confidence that APIs work on every release.

— Postman collections with full checks and schemas
— Environments, variables, and secure secret storage
— Data-driven runs, request chaining, and mock servers
— Newman in CI with HTML and JUnit reports

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Natalia M.QA (testing)
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