Udemy

API Testing Masterclass from Scratch (Postman+Rest Assured)

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  • 48,286 Students
  • Updated 2/2026
4.4
(2,171 Ratings)
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Course Information

Registration period
Year-round Recruitment
Course Level
Study Mode
Duration
6 Hour(s) 35 Minute(s)
Language
English
Taught by
TechLynk Selenium | DevOps | GenAI | Cloud
Rating
4.4
(2,171 Ratings)

Course Overview

API Testing Masterclass from Scratch (Postman+Rest Assured)

Complete API Testing for SDETs/QAs – Rest Assured, Postman, AI Powered API Test Automation Framework

Master API Automation Testing with Rest Assured, Postman, CI/CD, and Real-Time Projects, AI Powered API Test Automation Framework

- Become an Industry-Ready API Test Automation Engineer for top Product Companies.
- Don’t just learn — strive to truly understand the concept.

- Are you looking to AI powered master API testing and automation with real-world, enterprise-grade examples? This course is meticulously crafted for QA Engineers, Automation Testers, and SDETs who want to go beyond theory and build practical API automation frameworks used by top product companies.

- From API fundamentals to Rest Assured automation, from Postman to Jenkins CI/CD, and from Git mastery to real-time project implementation—you’ll get hands-on skills, downloadable resources, and reusable code templates to make your learning job-focused and impactful.

What You'll Learn

  • Learn Concepts of Software Architectures [ imp for SDET role ]

  • Understand APIs inside out: REST, HTTP, GraphQL, Status Codes, API Types

  • Use Postman like a pro: Auth flows, Params, Assertions, Cookie Validation

  • Build end-to-end API Automation with Rest Assured in Java

  • Structure test frameworks using Maven, TestNG, Property Files, Soft/Hard Asserts [ imp for SDET role ]

  • Master JSON handling, Schema Validation, Serialization & Deserialization using POJOs [ imp for SDET role ]

  • Automate workflows: API Chaining, Request Bodies, Token Auth, File Uploads [ imp for SDET role ]

  • Integrate with CI/CD using Jenkins: Build, Test, Deploy pipelines with reports [ imp for SDET role ]

  • Version control with Git: Branching strategies, conflict resolution, real-world workflows

  • Learn API metrics, resume strategies, and interview preparation

  • Work on real-time projects: ChatGPT APIs, Coop App, Multi-API flows

  • Explore AI use cases and performance techniques in API automation [ imp for SDET role ]


Who Should Take This Course?

  • Manual testers looking to switch to automation

  • QA Engineers ready to implement real-world API automation frameworks

  • SDETs preparing for interviews in top product companies

  • Anyone who wants hands-on experience in Postman, Rest Assured, Git, Jenkins, Maven, TestNG, Design Patterns & Java


What Makes This Course Unique?

  • 150+ practical lessons and code-along videos

  • Includes interview questions, resume tips, and real-time projects

  • Downloadable documents, PPTs, templates, and coding challenges

  • Covers Postman + Rest Assured + CI/CD with Jenkins + Git

  • Project-based learning with emphasis on code design patterns and framework structuring

  • Includes ChatGPT API automation, API chaining, POJO handling, and JSONPath

NEW: AI in Test Framework Development (Udemy's Hottest Trend for 20256) Leverage AI to auto-generate folder structures, code reviews, Rest Assured refactoring, TestNG XMLs, DataProviders, Log4j patterns, and full E2E tests from single prompts—cut development time in half!

NEW: AI for Test Data & Mocking AI-craft structured JSONs, fake user profiles, negative/boundary cases; create mock responses with Mockoon + AI for virtualized services—scale testing effortlessly.

NEW: AI for API Debugging AI-explain test failures, analyze stack traces, root-cause hunts, and condense verbose logs into insights—debug like never before.

NEW: AI + BDD (Cucumber + AI) Generate Gherkin scenarios, step definitions, and manual-to-auto conversions; build AI-powered Cucumber + Rest Assured suites for agile teams.

NEW: API Testing with OpenAI APIs (Learner Favorite—Hands-On LLM Magic!) Test GPT endpoints: validate requests/responses, rate limits, tokens, errors, and full LLM workflows—real-world AI API mastery.

NEW: Advanced API Automation: AI + CI/CD AI-generate GitHub Actions/Jenkinsfiles, enhance reporting, and automate PR reviews—deploy pipelines that evolve with your code.


Tools & Technologies Covered

  • Postman

  • Rest Assured (Java)

  • Git & GitHub

  • Jenkins

  • Maven

  • TestNG

  • JSON / POJO / Schema Validation

  • API chaining and token-based authentication

  • Java Programming Best Practices

  • Design Patterns

  • Software Architectures: Monolith & Microservice

  • Wrapper class in Java

  • Enum in Java


Included Resources

  • All course code on GitHub

  • Access to downloadable files: strategies, test plans, MCQs, resume templates

  • Mock interviews, coding patterns, and time-space complexity discussions

  • Retry Listeners, Wrapper Classes, Extent Reports, and more


Course Outcomes

  • Deploy AI-boosted API Automation Frameworks for production-ready testing.

  • Confidently handle live projects, token chaining, schema validation, and CI/CD in real SDET roles.

  • Ace interviews with practical demos, AI insights, and architectural prowess—land $120K+ jobs faster.

  • Future-proof your QA toolkit amid 2025's AI surge, with lifetime access and updates.

About the Trainer Crafted by SDET veterans with 17+ years in software engineering, framework design, and distributed systems. Our passion? Demystifying tech with real-world hacks and AI innovations—join 15K+ transformed learners who've boosted their careers!

With his deep expertise and passion for simplifying complex technical concepts, our teaching style bridges the gap between real-world industry practices and learner-friendly explanations — making this course practical, engaging, and result-driven.

Dive into the most comprehensive API Testing Masterclass on Udemy—now turbocharged with generative AI to future-proof your SDET career! Whether you're a QA engineer, automation tester, or aspiring specialist, this beginner-to-advanced course equips you to conquer REST API Testing and Automation using Postman, Rest Assured, Java, TestNG, Git, Jenkins, and cutting-edge AI tools. From manual Postman API Tests to scalable Rest Assured API Automation frameworks, plus exclusive AI integrations for smarter workflows, you'll gain industry-ready skills demanded by top firms like Google, Amazon, and Meta.

No prior experience? No problem—we start from scratch with hands-on projects, real APIs (GitHub, OpenAI), and lifetime support. Aligned with 2026 trends, where AI slashes testing time by 50%, this course bridges traditional automation with innovative AI for seamless CI/CD pipelines and interview dominance.

Enroll Today & Transform into an SDET Pro—Lifetime Access, 30-Day Guarantee! Why wait? API Testing skills + Postman API Test expertise + Rest Assured API Automation mastery + AI edge = Your QA superpower. Start now and automate the future!

Course Content

  • 35 section(s)
  • 212 lecture(s)
  • Section 1 Introduction to API Testing + AI-Augmented Test Automation
  • Section 2 Environment SetUp
  • Section 3 Java for Automation Test Engineers (Optional)
  • Section 4 Appendix - Java Refresher for Testers
  • Section 5 Exception Handling in Java
  • Section 6 Java Collection Framework
  • Section 7 Project Build Tool : MAVEN
  • Section 8 API and WebServices Introduction
  • Section 9 Basics of REST API
  • Section 10 Rest API Terminology
  • Section 11 AI Fundamentals for API Test Automation
  • Section 12 Start with POSTMAN
  • Section 13 Implement Test Scripts in POSTMAN
  • Section 14 Variables in POSTMAN Scripts
  • Section 15 Practice : Build and Test API Workflow
  • Section 16 Postman + AI Supercharged API Testing
  • Section 17 TestNG Framework : Test Management
  • Section 18 Start With REST Assured
  • Section 19 Get Request & Response Automation
  • Section 20 POST Request & Response Automation
  • Section 21 Diving in Depth : JSON Response Validation
  • Section 22 Deserialization using POJO classes
  • Section 23 Framework Designing ROAD Map
  • Section 24 Logging in REST Framework using Log4J
  • Section 25 REST Assured : REST Framework Designing & Implementation
  • Section 26 AI Copilot for REST Assured API Testing Automation Framework
  • Section 27 AI Integration in JAVA API Automation Framework
  • Section 28 Cucumber Basics (Skip If you Already Know Cucumber)
  • Section 29 Cucumber BDD Rest API Framework
  • Section 30 HTTP Client (Optional)
  • Section 31 Automation Testing Tips & Tricks
  • Section 32 Supplement Tutorials and Resources
  • Section 33 API Testing Interview Questions
  • Section 34 Automation Testing Interview Questions & Coding Problems
  • Section 35 Course Wrap-Up & Community Access

What You’ll Learn

  • API Fundamentals & Architectures with real time examples, Use Postman like a pro: Auth flows, Params, Assertions, Cookie Validation, Structure test frameworks using Maven, TestNG, Property Files, Soft/Hard Asserts, Automate REST APIs using Rest Assured API Automation, Automate workflows: API Chaining, Request Bodies, Token Auth, File Uploads, Design Patterns, Software Architectures, Coding Optimization Techniques, Build end-to-end API Automation with Rest Assured in Java, Use Java, Maven, TestNG, Log4j, POJOs, Utilities & Config files in frameworks, Parse and validate complex JSON using Serialization & Deserialization, Perform API chaining, token authentication, and advanced workflows, Design BDD-based API Testing Framework with Cucumber + Rest Assured, Integrate your framework with Git, GitHub, and Jenkins CI/CD pipelines, Master JSON handling, Schema Validation, Serialization & Deserialization using POJOs, Automate real-world APIs and end-to-end functional test flows, Learn API metrics, resume strategies, and interview preparation, Prepare for SDET roles with interview questions, resume tips & architecture concepts


Reviews

  • S
    Supriya S
    5.0

    concepts are explained clearly and simple thank you

  • M
    Mohammed Afsar
    4.5

    The course covered all the basics of java and Rest Assured also. Thanks for the in basic and depth explanation

  • V
    Vinay Allanki
    5.0

    Excellent

  • A
    Amrut Vijay Savalagi
    5.0

    Very nicely explained each and every topic, Thank you, thanks for your time.

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