Postman is a widely used API testing tool that simplifies sending requests, validating responses, and automating workflows. It helps developers and testers build, test, and manage APIs efficiently through an intuitive interface.
- Create and manage API requests with ease.
- Organize workflows using collections and variables.
- Automate testing with scripts, mock servers, and Postman API features
Why Learn Postman?
- Used for testing, developing, and managing APIs in web and mobile applications.
- Widely used by developers and testers for API automation and collaboration.
- Supports features like collections, variables, scripts, and mock servers for efficient API workflows.
- Helps validate API responses, status codes, and performance without using the UI.
- Trusted by many software companies for simplifying API development and testing processes.
- Makes working with APIs simpler and more efficient.
- Helps automate tests and integrate them into development workflows.
- Supports team collaboration through sharing and version control.
- Provides scripting and environment features that improve productivity.
Postman Features
Postman provides various features that help developers efficiently build, test, automate, and manage APIs.
- User-friendly interface for creating and testing APIs.
- Supports HTTP methods such as GET, POST, PUT, PATCH, and DELETE.
- Provides automated API testing using JavaScript test scripts.
- Allows request organization using collections and folders.
- Supports authentication methods such as OAuth 2.0, Bearer Tokens, API Keys, and Basic Authentication.
- Enables team collaboration through shared workspaces and API documentation.
- Provides environment variables for reusable configurations.
- Supports mock servers, monitoring, and automated workflows.
Prerequisites
- Basic API concepts (HTTP methods, headers, response codes).
- How RESTful APIs work.
- Some JavaScript knowledge for scripting.
- Familiarity with command line for Advanced Automation using Newman.
Introduction
Postman is a handy tool that makes it easy for developers to send API requests, keep their work organized, and test APIs. It runs smoothly on Windows, Ubuntu, and other systems, and has a simple interface that’s easy to get around.
Installation and Setup
Install Postman on your preferred operating system, configure the application, and become familiar with its user interface and workspace.
Creating and Sending API Requests
Learn how to create, configure, authorize, and send HTTP requests while understanding request components and API responses.
- Sending Your First Request in Postman
- Create and send API requests in Postman
- Understanding HTTP Requests and Responses
- Request Authorization in Postman
- Sending a GET Request in Postman
- Sanding a POST Requests in Postman
- Understanding Request and Response in Postman
- Understanding API Response Structure in Postman
- Passing Parameters in Postman Requests
- Managing Cookies in Postman
Managing Collections
Organize related API requests into collections, share them with your team, and execute multiple requests efficiently.
- Creating First Collection
- Create and Manage Request Collections
- Running Collections in Postman
- Sharing Collections
- Import and Export Collections in Postman
Variables and Environments
Manage reusable values such as URLs, tokens, and credentials using variables and environments for efficient API testing.
- Variables in Postman
- Creating and Using Global Variables in Postman
- Postman Dynamic Variables
- Managing Data Dynamically Using Variables in Postman
Scripting and Automation
Automate API testing by writing JavaScript-based pre-request and test scripts, validating responses, and creating reusable workflows.
- Getting Started with Scripting in Postman
- Scripting Languages Supported by Postman
- Pre-request Scripts in Postman
- Test Scripts in Postman
- Assertion in Postman
- Types of Assertions in Postman
- Postman - Workflows
- Managing Workflows Using Postman JavaScript Objects
Mock Servers
Simulate API endpoints using mock servers to develop, test, and validate applications before the actual backend is available.
- Introduction to Mock Servers
- Creating Mock Servers in Postman
- Use Mock Servers for API Testing or Development in Postman
Automation and CI/CD
Integrate Postman into automated testing workflows and CI/CD pipelines to ensure continuous API quality throughout the software development lifecycle.