Using extracted data in next request in Postman - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of extracting data in Postman tests?

Extracting data allows you to save values from a response, like IDs or tokens, so you can use them in later requests automatically.

beginner

How do you save extracted data in Postman for use in the next request?

You use the pm.environment.set('variableName', value) function inside the Tests tab to save data as an environment variable.

beginner

How do you use an extracted variable in the URL or body of the next request?

You reference the variable with double curly braces like {{variableName}} in the URL, headers, or body fields.

intermediate

Example: Extract a user ID from JSON response {"id":123} and save it for next request.

In the <code>Tests</code> tab, write:<br><pre>const jsonData = pm.response.json();
pm.environment.set('userId', jsonData.id);</pre>

beginner

Why is using extracted data in the next request important in API testing?

It simulates real user flows where data from one step is needed in the next, making tests more realistic and automated.

Which Postman function saves extracted data for later use?

A pm.response.extract()

B pm.environment.set()

C pm.request.save()

D pm.data.store()

pm.environment.set() saves data as an environment variable for use in later requests.

How do you reference an extracted variable in the next request's URL?

A <variableName>

B [variableName]

C {{variableName}}

D (variableName)

Variables are referenced with double curly braces like {{variableName}} in Postman.

Where do you write the code to extract data from a response in Postman?

A Tests tab

B Body tab

C Pre-request Script tab

D Headers tab

The Tests tab is used to write scripts that run after the response is received, including data extraction.

What type of data can you extract for use in the next request?

A Any data from the response body or headers

B Only numeric data

C Only text data

D Only status codes

You can extract any data from the response body or headers to use later.

Why is chaining requests with extracted data useful?

A It reduces the number of requests sent

B It makes tests faster by skipping responses

C It hides sensitive data automatically

D It simulates real workflows where data flows between steps

Chaining requests simulates real user flows where data from one request is needed in the next.

Explain how to extract a value from a JSON response and use it in the next Postman request.

Think about parsing, saving, and referencing variables.

Why is using extracted data in subsequent requests important for API testing?

Consider how real applications work with data across steps.