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Features and Use Cases of Postman

? Features and Use Cases of Postman

? Quick Overview

Postman is a popular API development and testing tool used by developers and testers to design, test, automate, and collaborate on APIs efficiently.

? Key Concepts

  • API Request & Response Handling
  • Collections and Environments
  • Automated Testing with Scripts
  • Collaboration and Sharing

? Syntax / Theory

Postman allows users to send HTTP requests such as GET, POST, PUT, DELETE and validate responses using JavaScript-based test scripts.

? Code Example(s)

? View Code Example 
// Basic Postman test script to validate status code
pm.test("Status code is 200", function () {
pm.response.to.have.status(200);
});
? View Code Example 
// Checking response time in Postman
pm.test("Response time is less than 500ms", function () {
pm.expect(pm.response.responseTime).to.be.below(500);
});

? Live Output / Explanation

Explanation

The above scripts automatically validate API responses. If conditions fail, Postman highlights the test as failed, helping detect issues early.

? Interactive Example / Visualization

Click the Send button below to simulate a Postman API request.

GET
https://api.myweb.com/users/1
Status: 200 OK Time: 124ms
Body Cookies Headers
Waiting for request...

? Use Cases

  • Manual API Testing
  • Automated Regression Testing
  • API Documentation Generation
  • Team Collaboration & Monitoring

✅ Tips & Best Practices

  • Use environments for different stages (Dev, QA, Prod)
  • Write reusable test scripts inside collections
  • Version control collections using workspaces

? Try It Yourself

  1. Create a new Postman collection
  2. Add a GET request to a public API
  3. Write a test script to validate JSON response