How to Send Request Body in Postman: Step-by-Step Guide

To send a request body in Postman, select the HTTP method like POST or PUT, go to the Body tab, choose the format (e.g., raw with JSON), and enter your data. Then send the request to include the body in your API call.

Syntax

In Postman, sending a request body involves these steps:

• Select the HTTP method that supports a body, such as POST, PUT, or PATCH.
• Click the Body tab below the URL field.
• Choose the body type: none, form-data, x-www-form-urlencoded, raw, or binary.
• If using raw, select the data format like JSON, Text, or XML.
• Enter the data you want to send in the text area.

http

POST /api/example HTTP/1.1
Host: example.com
Content-Type: application/json

{
  "key": "value"
}

Example

This example shows how to send a JSON request body with a POST request in Postman.

json

{
  "name": "Alice",
  "email": "[e-mail]"
}

Output

HTTP/1.1 200 OK
{
  "message": "User created successfully"
}

Common Pitfalls

Common mistakes when sending request bodies in Postman include:

• Not selecting the correct HTTP method that supports a body (e.g., using GET instead of POST).
• Forgetting to choose the Body tab and entering data there.
• Not setting the correct Content-Type header matching the body format (e.g., application/json for JSON data).
• Entering malformed JSON or invalid syntax in the raw body.

http

Wrong way:
GET /api/users HTTP/1.1

{
  "name": "Bob"
}

Right way:
POST /api/users HTTP/1.1
Content-Type: application/json

{
  "name": "Bob"
}

Quick Reference

Step	Action
1	Select POST, PUT, or PATCH method
2	Go to the Body tab
3	Choose body type (raw, form-data, etc.)
4	Select data format (JSON, text, etc.) if raw
5	Enter your request data
6	Send the request

Key Takeaways

Always use POST, PUT, or PATCH methods to send a request body in Postman.

Enter your data under the Body tab and select the correct format like raw JSON.

Set the Content-Type header to match your body format to avoid server errors.

Avoid using GET method when you need to send a request body.

Validate your JSON or data syntax before sending the request.