? Working with API Responses in Postman
? Quick Overview
When you send an API request in Postman, the server sends back a response. Understanding the response body, headers, status codes, and response time is essential for debugging, testing, and validating APIs.
? Key Concepts
- Response Body – Actual data returned by the API
- Response Headers – Metadata about the response
- Status Code – Result of the request
- Response Time – Time taken to get a response
? Syntax / Theory
In Postman, every API response is divided into multiple tabs. Each tab provides specific information about how the server handled your request.
? Code Example(s)
? View Code Example
{
"id": 101,
"name": "Laptop",
"price": 55000,
"inStock": true
}
? Live Output / Explanation
Response Breakdown
- Status: 200 OK
- Body: JSON object with product details
- Headers: Content-Type, Date, Server
- Time: 120 ms
? Interactive Example
Send a GET request to a public API such as:
? View Code Example
https://jsonplaceholder.typicode.com/posts/1
Observe the response body, headers, status code, and response time directly in Postman.
// Click 'Send' to simulate a Postman request...
? Use Cases
- Validating API responses during development
- Debugging incorrect server behavior
- Checking performance using response time
- Automated testing using response values
? Tips & Best Practices
- Always check status codes before reading the body
- Use the
Pretty view for formatted JSON
- Verify headers like
Content-Type
- Monitor response time for performance issues
? Try It Yourself
- Send a GET request to any public API
- Switch between Pretty, Raw, and Preview views
- Note the status code and response time
- Inspect response headers carefully