Why body format matches API expectations in Postman - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the correct Content-Type header for JSON body in Postman.

Postman

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

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

Atext/plain

Bmultipart/form-data

Capplication/xml

Dapplication/json

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'text/plain' or 'application/xml' causes the API to reject the request.

Omitting the Content-Type header leads to unexpected errors.

The Content-Type header must be 'application/json' to match the JSON body format expected by the API.

2fill in blank

medium

Complete the code to parse the JSON response body in Postman test script.

Postman

const responseData = pm.response.json();
const userId = responseData.[1];

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

Aid

Bstatus

Cmessage

Derror

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'status' or 'error' fields instead of the user ID.

Trying to access fields that don't exist in the response.

The 'id' field typically holds the user identifier in the JSON response, matching API expectations.

3fill in blank

hard

Fix the error in the test script to correctly check if the response body matches expected JSON format.

Postman

pm.test('Response has valid JSON', function () {
    pm.expect(pm.response.[1]()).to.be.an('object');
});

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

Atext

Bbody

Cjson

Dhtml

Attempts:

3 left

💡 Hint

Common Mistakes

Using pm.response.text() returns a string, not a JSON object.

Using pm.response.html() is for HTML content, not JSON.

Using pm.response.json() parses the response body as JSON, allowing the test to check its structure.

4fill in blank

hard

Fill both blanks to correctly set a JSON body and send the request in Postman pre-request script.

Postman

pm.request.body.raw = JSON.stringify({ [1]: 'John', [2]: 30 });

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

Aname

Bage

Cusername

Demail

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect field names like 'username' or 'email' when the API expects 'name' and 'age'.

Not stringifying the JSON object before assigning to raw body.

The JSON body keys must match the API's expected fields, here 'name' and 'age'.

5fill in blank

hard

Fill all three blanks to write a test that asserts the response JSON has a 'success' field true and a 'data' object.

Postman

pm.test('Response success and data check', function () {
    const jsonData = pm.response.[1]();
    pm.expect(jsonData.[2]).to.eql(true);
    pm.expect(jsonData.[3]).to.be.an('object');
});

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

Ajson

Bsuccess

Cdata

Dstatus

Attempts:

3 left

💡 Hint

Common Mistakes

Using pm.response.text() instead of pm.response.json().

Checking wrong fields like 'status' instead of 'success' or 'data'.

Not verifying the type of 'data' as an object.

The test parses JSON, checks that 'success' is true, and that 'data' is an object, matching API response expectations.