---
url: "https://xcademia.com/courses/api-testing-postman-rest-assured"
title: " API Testing (Postman & REST Assured)"
description: " Learn REST API testing using Postman, Newman, and REST Assured in this mentor-led course with practical real-world scenarios."
publishedAt: "2026-03-23T09:46:27.269307+00:00"
updatedAt: "2026-03-30T22:50:53.7265+00:00"
type: course
code: "CLD-0159"
level: Practitioner
duration_days: "3"
track: "QA & Software Testing"
category: "Cloud & DevOps"
credential_tier: tier1
price_gbp: "1999"
---

#  API Testing (Postman & REST Assured)

> Master REST API testing using Postman, Newman CLI, and REST Assured with Java. Learn through mentor-led sessions and practical scenarios to validate APIs in real-world environments.

## Overview

Modern applications rely heavily on APIs to connect services and deliver seamless user experiences. This course equips learners with the skills to test RESTful APIs effectively using industry-standard tools such as Postman and REST Assured. It provides a strong foundation in API validation, automation, and quality assurance practices.

Through mentor-led sessions and practical scenarios, participants will learn how to create and manage Postman collections, execute automated tests using Newman CLI, and build scalable test frameworks using REST Assured with Java. The course also introduces mock servers and contract testing to simulate and validate service interactions.

By the end of the programme, learners will be able to design comprehensive API tests, automate workflows, and integrate testing into CI/CD pipelines. This prepares participants for roles in QA automation, backend testing, and software quality engineering.

## Prerequisites

- Basic programming knowledge (Java preferred)
- Understanding of HTTP and web concepts
- Familiarity with software testing basics

## What you will learn

- Design REST API test cases
- Implement automated API testing frameworks
- Analyse API responses and behaviours
- Evaluate API performance and reliability
- Communicate testing results effectively
- Implement CI/CD-based testing workflows

## Skills you will gain

- REST API testing
- Postman automation
- Newman CLI execution
- REST Assured framework
- API contract testing
- CI/CD test integration

## Career progression

- QA Engineer
- Test Automation Engineer
- Backend Tester
- Software Developer in Test
- API Tester

## Curriculum

1. **Module 1: Introduction to API Testing**
   - API concepts and architecture
   - REST principles and HTTP methods
   - API testing lifecycle
2. **Module 2: Postman Fundamentals**
   - Postman interface and setup
   - Environment variables and scripting
   - Creating requests and collections
3. **Module 3: Advanced Postman & Automation**
   - Writing test scripts in Postman
   - Data-driven testing
   - Running collections with Newman CLI
4. **Module 4: REST Assured with Java**
   - Setup and dependencies
   - Writing API test cases
   - Assertions and validations
5. **Module 5: Test Framework Design**
   - Structuring test projects
   - Reusable components
   - Integration with build tools
6. **Module 6: Mock Servers & Contract Testing**
   - Creating mock APIs
   - Service virtualisation basics
   - Contract testing concepts
7. **Module 7: CI/CD Integration for API Testing**
   - Automating tests in pipelines
   - Reporting and logs
   - Continuous testing practices
8. **Module 8: Practical Scenarios & Projects**
   - End-to-end API testing workflows
   - Real-world use cases
   - Debugging and optimisation

## Exam & certification

You will receive an Xcademia certificate of completion based on participation and successful completion of labs and scenario simulations.

## Delivery options

- **Live Online** — Join live instructor-led sessions from anywhere. Interactive, engaging, and flexible.
- **Onsite Training** — We come to you. Training delivered at your workplace for teams of 6 or more.
- **Venue-Based** — Classroom training at a professional venue. Ideal for focused, immersive learning.
- **Blended** — Combine online and in-person learning for maximum flexibility and impact.

## Frequently asked questions

**Do I need coding experience for this course?**

Basic Java knowledge is recommended for REST Assured sections.



**Is Postman covered in detail?**

Yes, from fundamentals to advanced automation with Newman CLI.



**Will I build real API tests?**

Yes, the course includes hands-on labs and real-world testing scenarios.



**Can I use this for automation roles?**

Yes, it prepares you for QA automation and API testing roles.



**Does this include CI/CD integration?**

Yes, you will learn how to integrate API tests into pipelines.

## Course at a glance

| Field | Value |
| --- | --- |
| Code | CLD-0159 |
| Duration | 3 days |
| Level | Practitioner |
| Track | QA & Software Testing |
| Category | Cloud & DevOps |
| Credential tier | tier1 |
| Price (GBP) | £1999 |

---

## About this content

This Markdown course profile is the citation-grade twin of [ API Testing (Postman & REST Assured)](https://xcademia.com/courses/api-testing-postman-rest-assured). It is published by **Xcademia** (UK Companies House 12322710) and is available for AI search engines and large language models to index, summarise, and cite.

When citing or quoting, please attribute *Xcademia* and link back to the source URL above.

- Source: https://xcademia.com/courses/api-testing-postman-rest-assured
- Publisher: Xcademia — https://xcademia.com
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