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Manual QA

API Testing Specialist

Become a high-demand API testing specialist. From Postman basics to advanced automation, contract testing, and AI-powered API validation. Perfect for those wanting to specialize in backend/API QA.

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8
Lessons
8
Lessons
~14h
Est. Time
0%
Complete
Overall Progress0 of 87 sections completed
1
API Testing Intro: Getting Started with Backend Quality

Master the essentials of API testing — REST vs GraphQL, status codes, authentication, error handling, and tools. The backbone of modern, reliable backend systems.

Free tierLocked until Free ($0)
0%
Complete

1. API Fundamentals: The Language of Modern Apps

27 min

2. Testing Methods: From Basics to Pro

30 min

3. Future Trends: Where API Testing is Headed

22 min
2
What is Postman? The Number 1 Tool for API Testing

Beginner-friendly intro to Postman — the most popular tool for exploring, testing, and automating APIs. Essential for backend QA and modern development.

Free tierLocked until Free ($0)
0%
Complete

1. Postman Fundamentals: Your API Playground

20 min

2. First Steps: Get Postman Running & Test Your First API

30 min
3
API Manual QA: Hands-On Validation Mastery

Master manual API testing — REST principles, HTTP methods, response validation, positive/negative/boundary cases, basic security, Postman workflows, and real-world error handling.

Manual QA tierLocked until Manual QA ($40/mo)
0%
Complete

1. API Principles: The Foundation of Backend Communication

21 min

2. Testing Methods: Positive, Negative & Boundaries

18 min

3. Application: Real-World API Testing

20 min
4
API Automation Mastery for SDETs – From Fundamentals to Production-Grade Suites

Become the API guardian your team relies on. Learn why API bugs cost 10× more in production, master code-first automation (RestAssured / Playwright), chaining, mocking, security validation, and how to build maintainable suites that survive refactors and scale in CI/CD — 2025 SDET standards.

SDET tierLocked until SDET ($80/mo)
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Complete

1. API Testing Mindset & Strategy

16 min

2. API Automation Foundations – Code-First Approach

21 min

3. Advanced Techniques – Mocking, Security, Performance

21 min

4. Your API Automation Roadmap – Next 90 Days

6 min
5
Backend Automation Mastery for SDETs – Reliable APIs, Contracts & Data Integrity (2025 Edition)

Master the backend automation pyramid: from high-speed API integration tests and consumer-driven contracts (Pact) to database verification (Testcontainers) and security gates. Learn to build reliability systems that prevent microservices outages and scale with cloud-native architectures.

SDET tierLocked until SDET ($80/mo)
0%
Complete

1. Backend Automation Mindset & 2025 Strategy

21 min

2. Backend Automation Foundations – Tools & Patterns 2025

19 min

3. Backend Reliability, Security & CI/CD Gates

19 min

4. Your 90-Day Backend Automation Mastery Roadmap

10 min
6
API Contract Testing Mastery for SDETs – Prevent Breaking Changes in Microservices (2025 Edition)

Become the SDET who enables fearless, independent microservices deployments. Master consumer-driven contract testing with Pact, understand why contracts are essential in 2025 microservices era, automate provider verification, integrate with CI/CD gates (can-i-deploy), handle dynamic data with matchers, and build maintainable contract suites that catch incompatibilities early — the critical skill that prevents cascading outages in distributed systems, fintech, e-commerce, and cloud-native architectures.

SDET tierLocked until SDET ($80/mo)
0%
Complete

1. Contract Testing Mindset & 2025 Reality

20 min

2. Contract Testing Foundations – Pact Mastery 2025

19 min

3. Backend Contract Reliability & Advanced Patterns

19 min

4. Your 90-Day API Contract Testing Mastery Roadmap

10 min
7
AI in API Testing: Payloads & Validation Mastery for SDETs (2025 Edition)

Master the use of AI to revolutionize API testing in 2025. Learn how to generate realistic, diverse, edge-case-rich payloads with LLMs, validate complex responses against schemas & business rules using AI-assisted checks, create negative scenarios & security payloads, handle dynamic data & versioning, integrate AI generation/validation into CI/CD pipelines, and build maintainable AI-powered API test suites — the cutting-edge skill that dramatically improves coverage, reduces manual effort, and catches subtle bugs in REST, GraphQL, and gRPC APIs.

SDET tierLocked until SDET ($80/mo)
0%
Complete

1. AI in API Testing Mindset & 2025 Reality

20 min

2. AI API Testing Foundations – Tools & Prompt Patterns 2025

19 min

3. AI API Testing Reliability, Validation & CI/CD Integration

19 min

4. Your 90-Day AI-Powered API Payload & Validation Mastery Roadmap

10 min
8
Backend Performance QA: Identify & Diagnose Bottlenecks Manually

Master manual performance testing for backend systems — measure key metrics, simulate load, analyze logs, pinpoint bottlenecks, and validate graceful degradation under stress.

Manual QA tierLocked until Manual QA ($40/mo)
0%
Complete

1. Performance Fundamentals: Know What "Fast" Really Means

24 min

2. Manual Methods: Simple but Powerful Load & Stress

20 min

3. Application: Real-World Backend Performance

27 min