API versioning validation in Postman - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the API version header correctly in Postman.

Postman

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

Drag options to blanks, or click blank then click option'

Av1

Bver1

Capi_v1

Dversion1

Attempts:

3 left

💡 Hint

Common Mistakes

Using non-standard version strings like 'version1' or 'api_v1' which may not be recognized by the API.

The standard way to specify API version in headers is often 'v1'. This sets the 'Accept-Version' header to 'v1'.

2fill in blank

medium

Complete the test script to check if the API version in the response header is correct.

Postman

pm.test('API version is correct', function () { pm.expect(pm.response.headers.get('[1]')).to.eql('v1'); });

Drag options to blanks, or click blank then click option'

AVersion

BContent-Type

CAccept-Version

DAPI-Version

Attempts:

3 left

💡 Hint

Common Mistakes

Checking wrong headers like 'Content-Type' or 'Accept-Version' which are not response version headers.

The response header 'API-Version' is commonly used to indicate the version of the API that responded.

3fill in blank

hard

Fix the error in the test script to correctly validate the API version in the response body JSON.

Postman

pm.test('Response has correct API version', () => { pm.expect(pm.response.json().[1]).to.equal('v1'); });

Drag options to blanks, or click blank then click option'

Aversion

BapiVersion

Capi_ver

Dversion_api

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect key names like 'version_api' or 'api_ver' that do not exist in the response.

The response JSON key for API version is usually 'apiVersion' following camelCase naming.

4fill in blank

hard

Fill both blanks to create a test that checks the API version in both header and JSON body.

Postman

pm.test('API version consistency', () => { pm.expect(pm.response.headers.get('[1]')).to.eql('v1'); pm.expect(pm.response.json().[2]).to.eql('v1'); });

Drag options to blanks, or click blank then click option'

AAPI-Version

BapiVersion

CAccept-Version

Dversion

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing header and JSON key names or using incorrect keys.

The header 'API-Version' and JSON key 'apiVersion' are standard places to check API version consistency.

5fill in blank

hard

Fill all three blanks to write a pre-request script that sets the API version header dynamically and a test that validates it.

Postman

pm.request.headers.upsert({ key: '[1]', value: '[2]' });
pm.test('Check version header', () => { pm.expect(pm.request.headers.get('[3]')).to.eql('v2'); });

Drag options to blanks, or click blank then click option'

AAccept-Version

Bv2

CAPI-Version

DVersion

Attempts:

3 left

💡 Hint

Common Mistakes

Using different header keys in setting and checking causing test failures.

The pre-request script sets 'Accept-Version' header to 'v2'. The test checks the same header for 'v2'.