Course Overview

In modern software development, APIs (Application Programming Interfaces) play a critical role in enabling communication between applications. As businesses adopt microservices and cloud-based solutions, API Testing has become one of the most in-demand skills in the QA industry. API Testing ensures that data exchange, functionality, security, and performance of services work seamlessly.

At Techxeeria Technologies Pvt. Ltd., our API Testing using Postman & RestAssured Training Course is designed to help testers, developers, and QA professionals gain hands-on experience in API validation and automation. The course provides a 30-day structured training program covering everything from API fundamentals to advanced testing techniques using Postman and RestAssured with real-time projects.

Why Learn API Testing?

• APIs are the backbone of modern web and mobile applications.
• Manual UI testing alone cannot guarantee application quality – API Testing improves test coverage and efficiency.
• Skilled API testers are in high demand across industries.
• Tools like Postman (manual API testing) and RestAssured (automation using Java) are widely used in Agile and DevOps projects.
• Knowledge of API Testing prepares you for Automation, DevOps, and SDET roles.

30 Days API Testing Course Syllabus

Week 1 – Fundamentals of API & Postman Basics

• Day 1: Introduction to APIs – REST vs SOAP, JSON vs XML, Importance of API Testing.
• Day 2: Understanding HTTP Methods – GET, POST, PUT, DELETE, PATCH.
• Day 3: Status Codes & Response Types – 1xx, 2xx, 3xx, 4xx, 5xx.
• Day 4: Introduction to Postman – Installation, UI overview, creating first API request.
• Day 5: Postman Collections – Organizing API requests, saving environments.
• Day 6: Request Headers, Query Parameters, and Path Variables in Postman.
• Day 7: Authentication in Postman – Basic Auth, API Keys, OAuth2.
• Day 8: Writing Assertions in Postman using JavaScript.
• Day 9: Environment Variables and Global Variables in Postman.
• Day 10: Postman Runner – Executing collections and data-driven testing with CSV/JSON.

Week 2 – Advanced Postman & API Automation with RestAssured

• Day 11: Postman Pre-request and Test Scripts.
• Day 12: Postman Newman – Running tests from the command line.
• Day 13: Introduction to RestAssured – Setting up Java, Maven, and RestAssured libraries.
• Day 14: Writing first REST API automation script in RestAssured.
• Day 15: GET Request automation with RestAssured.
• Day 16: POST Request automation with JSON payloads.
• Day 17: PUT and DELETE Request automation.
• Day 18: Validating Responses – Status Codes, Headers, and Body assertions.
• Day 19: JSON Path & Deserialization in RestAssured.
• Day 20: Parameterization in RestAssured (Query, Path, Form parameters).

Week 3 – Frameworks & Advanced RestAssured Features

• Day 21: Data-Driven Testing with RestAssured (using Excel/CSV).
• Day 22: Logging and Reporting in RestAssured.
• Day 23: Authentication Mechanisms – Basic Auth, Digest, OAuth, Bearer Tokens.
• Day 24: Schema Validation in RestAssured (JSON Schema, XML Schema).
• Day 25: Using Hamcrest Matchers for advanced validations.
• Day 26: API Chaining with RestAssured – Passing values from one API to another.
• Day 27: Framework Development – Creating reusable functions and utilities.
• Day 28: Integration of RestAssured with TestNG for reporting and test management.
• Day 29: Continuous Integration with Jenkins – Running API automation as part of CI/CD pipeline.
• Day 30: Final Real-Time Project – Testing an E-commerce API (User Signup, Login, Add to Cart, Checkout).

Hands-On Training Approach

During this training, you will:

• Perform manual API testing using Postman.
• Write API test cases in Postman with assertions.
• Automate REST APIs using Java + RestAssured.
• Build a data-driven and reusable framework.
• Integrate your test suite with TestNG, Maven, GitHub, and Jenkins.
• Work on a real-world API project to simulate industry practices.

Who Should Join This Course?

• Manual Testers planning to move into API Automation.
• QA professionals who want to learn Postman and RestAssured.
• Developers who want to validate APIs during development.
• Freshers who want to enter the IT industry as API testers.
• Professionals preparing for SDET and Automation roles.

Key Benefits of API Testing Training at Techxeeria

• 30 Days structured syllabus from basics to advanced.
• Practical exposure with Postman & RestAssured.
• Training includes manual + automation API testing.
• Hands-on real-time projects for industry-level experience.
• Interview preparation and placement support.

Career Opportunities After Training

After completing this course, you can apply for roles such as:

• API Tester
• Automation Test Engineer (API)
• SDET (Software Development Engineer in Test)
• QA Engineer (Manual + API Testing)
• Performance & Security Testing roles (with advanced learning)

With this foundation, you can also grow into Mobile Automation (Appium), API Performance Testing (JMeter), and DevOps Testing roles.