API Test Automation Mastery with Java, TestNG & Karate Framework

Rahul has immense knowledge on Automation, people who wants to get into automation just listen to Rahul demo classes and check his way of teaching and Isha training is good they are providing good trainers like Rahul with affordable fee. – Praween Reddy

This course has been very helpful, each topic was covered in depth. Rahul sir had been very patient and took time to explain each and every question. – Madhu Mundhra

Rahul is the best instructor and have a plenty knowledge of all the Automation concepts… initially I thought it was Rahul Shetty 😊 as his accent was same like him…he was very cooperative and always willing to help in person as well… – Babita Lugani

I had a great time doing this course and it is great learning experience. Rahul was very helpful and responsive in clearing all our doubts.I would like to thank for the guidance provided by my tutor. Great and supportive environment to learn .- Monika Kanthi

That was a great pleasure to learn from isha training solutions. Rahul sir was just amazing and he used teach in a way that everyone should understand each and every concept with an ease. Thank you for everything. – C. Harivardhan Reddy

The course is very well explained and organized. I am personally very satisfied with what I have learned so far. – Bhanu Kiran

Excellent course, thank you very much! In particular, I liked the way you approach the different topics step by step and guide students through these different steps. I also liked the challenges that force you to think through a problem. Furthermore, I also liked some of the videos, where you intentionally inserted errors that made code to fail. Overall, I thoroughly enjoyed this course! –Lei Yuvi

Section 1: Core Java Programming for Testers

• Java Setup: JDK Installation, IDE Setup (Eclipse/IntelliJ)
• Java Fundamentals: Data Types, Operators, Control Structures
• Methods, Static vs Instance Methods
• OOP Concepts: Inheritance, Polymorphism, Abstraction, Encapsulation
• Constructors, Overloading & Overriding
• Exception Handling: try-catch-finally, throw/throws, custom exceptions
• String Manipulations and Wrapper Classes
• Collections Framework: List, Set, Map, Queue
• Java 8+ Features: Lambdas, Streams, Optionals
• Hands-on Coding Exercises and DSA Problems for Practice

Section 2: TestNG Framework for Automation

• Why TestNG? Advantages over JUnit
• Installing TestNG Plugin in Eclipse/IntelliJ
• TestNG Annotations and XML Suite Configuration
• Prioritization and Grouping of Tests
• Parameterization using @DataProvide
• Assertions: SoftAssert vs HardAssert
• Parallel Execution using XML and ThreadPoolSize
• Listeners (ITestListener, IReporter, RetryAnalyzer)
• Custom Listener Implementation
• Creating Reusable Base Test Classes and Utilities

Section 3: API Testing Using Postman

• Introduction to Postman and Its Importance
• Creating and Organizing Collections
• Environment and Global Variables
• GET, POST, PUT, DELETE, HEAD, OPTIONS Requests with Examples
• Writing Tests in Postman using JavaScript using post script tabs
• Request Chaining
• Pre-request to provide the prerequisites for the API
• Assertions and Response Validations
• Running Collections with Collection Runner and Newman CLI
• Mock Servers and Monitoring
• Query Parameters, Form Parameters, Path Parameters
• Schema Validations
• Newman Reports and Postman CLI Reports
• Integrating Postman Collections in CI/CD Pipelines

Section 4: REST API Testing with Rest Assured

• Introduction to APIs and HTTP Methods
• REST vs SOAP Overview
• Adding REST Assured Dependencies in Maven
• Setting up Base URI and Base Path
• GET, POST, PUT, DELETE Operations
• Request and Response Specification Builders
• Passing Headers, Path Params, Query Params
• Validating Status Codes and Response Body
• Schema Validation (JSON & XML)
• Authentication: Basic Auth, Bearer Token, OAuth 2.0
• Using POJOs for Payloads (Serialization & Deserialization)
• Data-Driven API Testing with TestNG and Excel/CSV/JSON
• Stubbing and wiremock
• Filters
• Hamcrest Validations
• Performing Different Types of Authentications
• Performing Multipart automation
• End-to-End API Test Scenarios

Section 5: Karate Framework (BDD Style API Automation)

• Introduction to Karate Framework
• Setting Up a Karate Project with Maven
• Gherkin Syntax and Feature File Creation
• Calling REST APIs with GET, POST, PUT, DELETE
• Headers, Parameters, Payload Management
• Validating Response Body, Status Code, Headers
• Assertions and Matchers in Karate
• Karate Config File and Global Variables
• Scenario Outline for Data-Driven Tests
• Calling Java Code and Reusability
• Reading External Data Files (JSON, CSV)
• Karate Reports and HTML Report Customization
• Integration with Jenkins and CI Pipelines

Section 6: GraphQL

• GraphQL Support in Postman
• Crafting GraphQL Queries and Testing Mutations
• Using Variables in GraphQL Queries
• Response Validation for GraphQL APIs
• GraphQL Basics and Comparison with REST
• Sending GraphQL Queries and Mutations using Rest Assured
• Building GraphQL Payloads Dynamically
• Validating GraphQL Responses
• Error Handling in GraphQL Testing

Section 7: Utilities and Reporting

• Creating Utilities for Reusability
• Generating Reports using TestNG (Default and Extent Reports)
• Allure Reports
• Custom Logging Mechanisms
• Reporting in Karate (Cucumber Reports)

Section 8: CI/CD & DevOps Integration

• Jenkins Setup and Job Configuration
• Creating Parameterized & Scheduled Jobs
• Jenkins Pipeline Script for Automation Execution
• Integrating Selenium and API Framework with Jenkins
• Ngrok Proxy with WebHook for triggering the pipelines on code push
• Docker Basics & Selenium Grid with Docker
• Docker Compose for Multi-Node Setup
• GitHub Actions Overview (If Time Permits)
• AWS EC2 for Distributed Execution (Optional)

Section 9: Mini Project and Interview Preparation

• Building a Mini Framework for API Testing
• Mock API Testing Use Cases
• Common API Test Interview Questions
• Karate + RestAssured Comparative Overview
• TestNG Real-Time Interview Questions
• Java Basics Refresher for Interviews

Bonus:

• JavaScript Basics for API Testing
• Git Basics for Test Automation Projects

Outcome:

Participants will:

• Master Java essentials and TestNG-based automation
• Be able to automate REST APIs using both Rest Assured and Karate
• Understand Postman’s capabilities for API validation, mocking, and CI integration
• Be capable of building and maintaining industry-standard API test frameworks
• Be ready for real-world QA roles and automation interviews