Postman Foundations: REST API Testing and Collections for Beginners — PickAClass
⏱ 2h 48m 📚 28 lessons 🎧 Audio version

Postman Foundations: REST API Testing and Collections for Beginners

Master the fundamentals of Postman to send requests, manage collections, and understand REST API logic through practical, step-by-step written exercises.

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  • 🌐 In English
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About this course

Modern software development relies heavily on APIs, making API testing an essential skill for developers and QA engineers. If you want to understand how web services communicate but do not know where to start, mastering Postman is the perfect first step. This text-only course guides you from absolute beginner to confidently executing, organizing, and testing API requests using Postman. What you'll learn: - Understand fundamental REST API concepts, including HTTP methods, status codes, and headers. - Create and send GET, POST, PUT, and DELETE requests using the Postman interface. - Organize and manage your API requests efficiently using Postman Collections. - Configure environment and global variables to build dynamic and reusable requests. - Apply modern authentication methods, such as Bearer tokens and basic auth, to secure requests. - Write basic test scripts in JavaScript to validate API responses automatically. You will start with the core terminology of APIs before moving on to hands-on written guides that show you how to structure requests, manage variables, and analyze responses. By reading through clear code snippets and realistic scenarios, you will build a solid foundation in API testing. This course is designed for absolute beginners, aspiring QA engineers, and junior developers. No prior programming or API testing experience is required. Start reading today to unlock the power of API testing with Postman.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
    Stuck on a lesson? Ask your built-in tutor anything, any time.
  • 🎧 Audio version included
    Learn on the go — no screen needed
  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 14-day refund
    No questions asked
  • Short & focused
    2h 48m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Postman Foundations: REST API Testing and Collections for Beginners
Skills demonstrated
Behavioral pattern analysis
Foundational
1.2 hrs
Decision-architecture frameworks
Proficient
1.4 hrs
A/B test design
Proficient
1.7 hrs
Behavioral copywriting
Advanced
1.9 hrs
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PickAClass — Name Surname
Postman Foundations: REST API Testing and Collections for Beginners
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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