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API Testing Is the Skill Every QA Team Is Hiring For. Here's How You Master It.

From Postman basics to REST Assured automation, AI-powered contract validation, and security testing — the complete API QA stack.

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APIs are the backbone of every modern application. And yet, most QA engineers are still manually clicking through Postman. This course changes that. You’ll go from understanding what an API is to building a fully automated REST Assured framework — with data-driven tests, schema validation, security checks, and AI-powered test generation. By the end, you’ll be the person your team relies on when the API breaks.

Syllabus

Phase 1: API Fundamentals & Architecture

Modules

HTTP & HTTPS — Request/Response Internals

API Architectures

Phase 2: Manual API Testing with Postman

Modules

Postman 101

Authentication Methods — Basic, Bearer, OAuth, API Keys

Postman Scripts

Request Chaining

Swagger/OAS

Error Resilience

Mock Servers

Milestone Lab

Phase 3: REST Assured Automation Framework

Modules

Framework Setup

Design Patterns

Serialization

Schema Validation

Data-Driven (I)

Data-Driven (II)

GraphQL Auto

Interception

Logging & Reporting — Allure, HTML Reports

Milestone Lab

Phase 4: AI-Powered API Testing

Modules

MCP for APIs

Autonomous Gen

AI Fuzzing

Prompt Engineering for API Test Design

AI-Assisted API Documentation & Contract Generation

Phase 5: API Security Testing (OWASP)

Modules

OWASP API Top 10

Mass Assignment

Phase 6: API Performance & Load Testing

Modules

Performance Testing with k6 and JMeter — Part 1

Performance Testing with k6 and JMeter — Part 2

Phase 7: Capstone Project & CI/CD Integration

Modules

CI/CD & Demo

Outcome

By the end of this course, you will be able to:
  • Validate API requests, responses, status codes, and data accuracy using Postman
  • Implement authentication testing — Basic, Bearer token, OAuth 2.0, and API keys
  • Build a REST Assured automation framework with data-driven tests and schema validation
  • Test GraphQL APIs and intercept network requests for validation
  • Apply OWASP API Top 10 security testing techniques including mass assignment attacks
  • Run API performance and load tests using k6 and JMeter
  • Use AI to generate test data, validate contracts, and detect performance anomalies
  • Integrate your API test suite into CI/CD pipelines with Docker execution
Career roles you’ll be ready for: API Test Engineer, QA Automation Engineer (API), SDET, Backend QA Specialist

Tools

Selenium

Java

Maven

Cucumber

REST Assured

Docker

Jenkins

GitHub Copilot

FAQs

This course is designed to help learners understand and master API testing from manual validation to automation. It covers API fundamentals, testing techniques, automation tools, CI/CD integration, and AI-powered testing approaches.

This course is ideal for:

  • Manual testers who want to move into API testing and automation

  • QA engineers and test automation professionals

  • Developers who want to validate APIs effectively

  • Fresh graduates interested in software testing careers

Basic programming knowledge is helpful but not mandatory. The course starts with manual API testing concepts and gradually introduces automation using tools and frameworks.

You will gain hands-on experience with tools such as:

  • Postman for API testing

  • REST Assured for automation

  • CI/CD integration for automated test execution

  • Docker for environment-based test execution

Yes. The training includes practical exercises and real-world API testing scenarios to help learners understand how APIs are tested in real industry environments.

Yes. The course is structured as a progression — Phase 2 covers comprehensive manual testing in Postman (including scripts, assertions, and chaining), and Phase 3 moves into REST Assured automation in Java. By the end you’ll be comfortable in both tools and know when to use each.
Basic programming familiarity is helpful for the REST Assured automation phases. The course introduces Java concepts needed for REST Assured. If you’re completely new to programming, we recommend completing the Freshers course first to build your foundation.

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