How to Automatically Save and Use Tokens in Postman Using Collection Variables

How to Automatically Save and Use Tokens in Postman Using Collection Variables

Learn how to automatically save and reuse API tokens in Postman using Collection Variables! No more copying and pasting tokens manually for each request. Perfect for testing APIs efficiently and saving time.

What you’ll learn in this video:

How to capture a JWT token from a login API response ✅

How to save the token as a Collection Variable ✅

How to use the saved token in subsequent API requests automatically ✅

How to streamline your API testing workflow in Postman ✅

Script to save token in Postman:

if (pm.response.code === 200) {
const response = pm.response.json();
if (response.token) {
pm.collectionVariables.set('auth_token', response.token);
console.log('Token saved:', response.token);
}
}


How it works:

Checks if the response code is 200 ✅
Parses the JSON response ✅
Checks if the token exists ✅
Saves the token as a collection variable ✅
Logs it in Postman console for debugging ✅

Use the token in other requests:
Set your header as:

Authorization: Bearer {{auth_token}}
Postman will automatically replace {{auth_token}} with your saved token.

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