API Testing: GraphQL and gRPC with Postman — PickAClass
⏱ 3h 📚 30 lessons

API Testing: GraphQL and gRPC with Postman

Learn to test modern APIs like GraphQL and gRPC using practical scenarios and Postman.

  • 💬 AI instructor
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  • 🕐 Start anytime
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  • 🌐 In English
    Lessons, tasks and certificate — all fully in your language.

About this course

Struggling to test modern API architectures like GraphQL and gRPC? This course provides a structured approach to understanding and practically testing these essential communication methods. You will gain a comprehensive understanding of API technologies, from their underlying architecture and protocols to hands-on testing of business scenarios, error handling, and preparing for real-world development tasks. What you'll learn: * Understand the core concepts and architecture behind GraphQL and gRPC. * Explore the protocols and request structures for effective API interaction. * Practice testing real-world business scenarios using Postman. * Learn strategies for handling errors and edge cases in API requests. * Develop skills for API testing relevant to professional development environments. * Gain foundational knowledge in API contract testing for improved reliability. This course covers the essential principles and practical applications of testing GraphQL and gRPC APIs, guiding you from foundational knowledge to practical application in a text-based learning environment. Designed for beginners with no prior experience, this course will equip you with the fundamental skills to begin testing modern APIs. Start your journey into effective API testing today.

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.
  • ♾️ Lifetime access
    Come back anytime, no expiry
  • 📱 Phone or computer
    Works anywhere, any device
  • 💸 14-day refund
    No questions asked
  • Short & focused
    3h 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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PickAClass
Skills profile · verifiable
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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
API Testing: GraphQL and gRPC with Postman
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
P
PickAClass — Name Surname
API Testing: GraphQL and gRPC with Postman
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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