Postman API Testing: Complete Course
A complete Postman API testing course for developers and QA engineers. Learn everything from Postman basics and HTTP fundamentals to advanced automation, Collections, Environments, JavaScript test scripts, Newman CI/CD integration, mock servers, and real-world API testing workflows. Ideal for backend developers, frontend developers, and QA professionals who want to master REST API testing.
Course Content
6 modules · 14 lessonsIntroduction to Postman and API Fundamentals
Get started with Postman API testing from scratch. This module introduces the Postman interface, explains what REST APIs and HTTP are, and walks through the Postman UI so you can make your first API request with confidence.
What is Postman? A Complete Introduction
Postman introduction, API platform, Postman features, Postman vs alternatives, installing Postman, Postman interface overview
Understanding REST APIs and HTTP Fundamentals
REST API basics, HTTP methods, HTTP status codes, request anatomy, response anatomy, JSON format, API endpoints
Postman Installation and Interface Walkthrough
Postman installation, request builder, response panel, Postman console, keyboard shortcuts, request history, interface overview
Making API Requests in Postman
Master all HTTP methods — GET, POST, PUT, PATCH, and DELETE — plus request headers, query parameters, path parameters, and request body types. This module gives you the complete skill set for building any API request in Postman.
Sending GET and POST Requests in Postman
GET request, POST request, query parameters, path parameters, request body, JSON body, Content-Type header, JSONPlaceholder
PUT, PATCH, and DELETE Requests in Postman
PUT request, PATCH request, DELETE request, PUT vs PATCH, CRUD operations, HTTP methods comparison
Request Headers, Query Params, and Request Body
HTTP headers, Content-Type, Accept header, Authorization header, query parameters, form-data, x-www-form-urlencoded, raw JSON body, Postman variables
Collections and Environments
Learn to organize API requests with Postman Collections and manage configuration across multiple environments. This module covers collection structure, environment variables, dynamic variables, and the Collection Runner for automated test execution.
Postman Collections: Organizing Your API Tests
Postman collections, creating collections, adding requests, folder organization, collection runner, import export collections, collection-level scripts
Postman Environments and Variables
Postman environments, variable scopes, environment variables, global variables, collection variables, dynamic variables, setting variables in scripts, initial value vs current value
Authentication and Testing
Master all major API authentication methods in Postman — Bearer tokens, API keys, Basic Auth, and OAuth 2.0. Learn to write comprehensive JavaScript test scripts that validate every aspect of API responses, from status codes to deep body inspection.
API Authentication: Bearer Tokens and API Keys in Postman
Bearer token, JWT authentication, API key authentication, Basic Auth, OAuth 2.0, Postman Authorization tab, inheriting auth, token refresh automation
Writing Test Scripts in Postman with JavaScript
pm object, pm.test, pm.expect, Chai assertions, testing status codes, testing response body, testing headers, testing arrays, saving variables from tests, Postman snippets
Automation and Advanced Features
Master advanced Postman features — pre-request scripts, Collection Runner automation, Newman CI/CD integration, mock servers, API documentation, and monitoring. This module transforms Postman from a testing tool into a complete API automation platform.
Pre-request Scripts and Dynamic Data in Postman
pre-request scripts, pm.sendRequest, dynamic data generation, HMAC signature, script execution order, CryptoJS, automated token refresh
Automating API Tests with Collection Runner and Newman
Collection Runner, data-driven testing, CSV data files, Newman CLI, Newman installation, CI/CD integration, GitHub Actions, test reports
Mock Servers and API Documentation in Postman
Postman mock server, creating mock examples, API documentation generation, publishing documentation, Postman monitors, API health monitoring
Real-World API Testing Workflows
Apply everything learned in a complete real-world API testing workflow. This module covers professional debugging techniques, the complete API testing checklist, version control for Postman files, and building a production-grade test suite from scratch.