Why pre-request scripts prepare data in Postman - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set a variable in a pre-request script.

Postman

pm.variables.set('[1]', '12345');

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Atoken

Bresponse

Crequest

DuserId

Attempts:

3 left

💡 Hint

Common Mistakes

Using response or request objects directly in variable names.

The pre-request script sets the variable userId to prepare data for the request.

2fill in blank

medium

Complete the code to get an environment variable in a pre-request script.

Postman

const token = pm.environment.get('[1]');

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AuserId

BauthToken

CresponseTime

DrequestBody

Attempts:

3 left

💡 Hint

Common Mistakes

Using unrelated variable names like responseTime or requestBody.

The pre-request script retrieves the authToken from environment variables to use in the request.

3fill in blank

hard

Fix the error in the pre-request script to correctly set a header.

Postman

pm.request.headers.add({ key: 'Authorization', value: '[1]' });

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Apm.environment.get('authToken')

BauthToken

Cpm.variables.get('authToken')

Dtoken

Attempts:

3 left

💡 Hint

Common Mistakes

Using just the variable name without getting its value.

The correct way to get the token value is using pm.environment.get('authToken') to set the header value.

4fill in blank

hard

Fill both blanks to prepare a timestamp and set it as a variable.

Postman

const timestamp = new Date().[1]();
pm.variables.set('requestTime', [2]);

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AgetTime

BtoISOString

Ctimestamp

DDate.now()

Attempts:

3 left

💡 Hint

Common Mistakes

Using toISOString() returns a string, not a timestamp number.

The getTime() method gets the timestamp in milliseconds, stored in timestamp, then set as 'requestTime'.

5fill in blank

hard

Fill all three blanks to create a random user ID and set it as an environment variable.

Postman

const randomId = Math.[1]() * 1000;
pm.environment.set('[2]', randomId.toString());
pm.variables.set('[3]', randomId);

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Arandom

BuserId

CrandomUserId

Duser_id

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect method names or inconsistent variable names.

Use Math.random() to generate a random number. Set environment variable 'userId' and local variable 'randomUserId' with this value.