Learn API Testing with Postman and Python Requests Module (Udemy.com)

Course: Master REST API Testing from Scratch Using Postman and Python requests Module

Instructor: Mr. Madan (Well experienced trainer having more than than 10+ years of experience in test automation tools and as a trainer.

Course Description:

Are you looking to become a professional API Tester? Whether you're a beginner or someone with manual testing experience, this course will help you master REST API testing using two powerful tools: Postman and Python’s requests module.

From understanding the fundamentals of APIs and HTTP methods to building advanced automated testing frameworks and integrating with CI/CD tools like Jenkins and GitHub Actions, this course is 100% hands-on and beginner-friendly.

You’ll also work on a real-time mini project simulating an online store and gain practical experience with both Postman GUI and Python scripting. By the end of the course, you'll be confident in testing APIs, automating tests, validating responses, and running tests in continuous pipelines.

What You’ll Learn:

• REST API basics, HTTP methods, status codes

• Postman Collections, scripting, and test automation

• Data-driven testing using JSON/CSV

• API Authentication (Basic, Bearer, OAuth2)

• GraphQL API Testing

• Writing API tests using Python’s requests library

• File upload/download, JSON/XML parsing

• Building a Python-based API Testing Framework

• CI/CD integration using Jenkins, GitHub Actions, Newman, and Postman CLI

• Extent & Allure reporting

  
  

  Course Contents:

Module 1: Introduction to API Testing

• Client-Server Architecture

• What is an API?

• Importance of API Testing

• SOAP vs REST APIs

• REST API Concepts: HTTP Methods, Status Codes, HTTPS

Module 2: API Testing Using Postman

Getting Started with Postman

• Installation & Setup

• Workspaces, Collections, HTTP Requests

Response Validation Techniques

• Status Codes, Headers, Cookies

• JSON Schema Validation

Data Handling and Utilities

• Import/Export Collections

• JSON Path, Chai Assertions

• Dummy APIs with JSON Server

Advanced Postman Features

• Scripts: Pre-request, Test

• Using Variables (Global, Local, Env)

Test Automation in Postman

• Request Chaining

• Data-Driven Testing with JSON/CSV

• File Upload & Download

API Authentication Techniques

• Basic, Digest, Bearer Token, OAuth2

Mini Project: Online Store API Testing

• Reading API Docs

• Writing Test Cases, Collections, and Scripts

• Running and Scheduling Collections

CLI & CI/CD Integration

• Newman CLI: HTML Reporter, CMD Execution

• Postman CLI: GitHub Actions Integration, Automation

Documentation & Mocking

• Public Docs in Markdown

• Swagger & cURL Basics

• Creating Mock Servers

API Performance Testing in Postman

• Load Tests, Load Profiles

• Data Injection into Virtual Users

GraphQL API Testing

• GraphQL Basics, Queries, Mutations

• GraphQL in Postman

Module 3: API Testing Using Python - Requests Library

Introduction to Python Requests

• Environment Setup

• Using pytest, Project Initialization

Writing API Scripts

• HTTP Methods with Payloads

• Path & Query Params, Headers, Cookies

API Authentication Techniques

• Basic, Digest, OAuth1 & OAuth2

Handling Files & Parsing Responses

• File Upload/Download

• JSON & XML Parsing, Schema Validation

Advanced Concepts

• API Chaining, Serialization

• Request/Response Builders, Logging

Working with GraphQL in Python

• GraphQL Queries & Mutations with Requests

Building a Python API Testing Framework

• Folder Structure (Maven-style)

• Routes, Schemas, Models, POJOs

• Config, Payload Builders

• Writing & Validating Tests

• HTML (Extent) & Allure Reporting

• Serial & Parallel Execution with pytest

CI/CD Integration

• Git & GitHub

• Jenkins Pipeline for API Testing

Who This Course is For:

• Manual testers transitioning to automation

• QA Engineers looking to upskill in API testing

• Beginners aiming to learn Postman and Python for testing

• Developers needing to write and validate API tests

• Testers working on REST or GraphQL APIs

Requirements:

• No prior coding or API experience required

• Basic understanding of software testing is a plus

• A computer with internet access