Creating collections in Postman - Practice Exercises

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding Postman Collection Structure

Which part of a Postman collection JSON file defines the requests included in the collection?

A The <code>info</code> object holds the request details like URL and method.

B The <code>item</code> array contains all requests and folders in the collection.

C The <code>event</code> array lists the requests inside the collection.

D The <code>variable</code> object stores the request headers.

💡 Hint

Think about where Postman groups requests and folders inside a collection.

The item array in a Postman collection JSON contains all requests and folders. The info object holds metadata about the collection, not requests. Events are for scripts, and variables store environment or collection variables.

❓ Predict Output

intermediate

Output of Adding a Request to a Collection

Given this snippet of a Postman collection JSON, how many requests does the collection contain?

{
  "info": {"name": "Sample Collection"},
  "item": [
    {"name": "Get Users", "request": {"method": "GET", "url": "https://api.example.com/users"}},
    {"name": "Create User", "request": {"method": "POST", "url": "https://api.example.com/users"}}
  ]
}

A 3

B 1

C 0

D 2

💡 Hint

Count the number of objects inside the item array that have a request field.

There are two objects inside the item array, each with a request field, so the collection contains two requests.

❓ locator

advanced

Best Locator for a Request in Postman Collection JSON

In a Postman collection JSON, which key path correctly locates the HTTP method of the first request?

A <code>request.item[0].method</code>

B <code>info.item.request.method</code>

C <code>item[0].request.method</code>

D <code>item.request[0].method</code>

💡 Hint

Remember that item is an array of requests or folders, and each request is inside an item element.

The item array holds requests. The first request is at item[0]. Its method is inside request.method. So the correct path is item[0].request.method.

❓ assertion

advanced

Valid Assertion for Postman Collection Request Count

Which assertion correctly verifies that a Postman collection JSON has exactly 3 requests?

Postman

const collection = {
  item: [
    { request: {} },
    { request: {} },
    { request: {} }
  ]
};

A assert.equal(collection.item.length, 3);

B assert.equal(collection.request.length, 3);

C assert.equal(collection.items.length, 3);

D assert.equal(collection.item.requests.length, 3);

💡 Hint

Check the exact key name that holds the requests array.

The requests are inside the item array. So checking collection.item.length equals 3 is correct. Other options use wrong keys.

❓ framework

expert

Automating Collection Creation with Postman API

Which HTTP method and endpoint combination correctly creates a new collection using the Postman API?

A POST https://api.getpostman.com/collections

B PUT https://api.getpostman.com/collections

C GET https://api.getpostman.com/collections

D DELETE https://api.getpostman.com/collections

💡 Hint

Creating a resource usually uses a specific HTTP method.

To create a new collection via Postman API, you send a POST request to https://api.getpostman.com/collections. GET retrieves, PUT updates, DELETE removes.