Practical GraphQL - Become a GraphQL Ninja - Solution to the Student Challenge - GraphQL Type Relationships

The video tutorial explains how to add a 'car' field to a user type in a data schema, which involves creating a custom resolver function. The process includes mapping car IDs to user data and testing the implementation to ensure it returns the correct car information for each user. The tutorial concludes with a successful test of the solution.

What is the purpose of the 'cars' property in the user data structure?

• To record the user's driving history

• To keep track of the cars owned by the user

• To list the car models available in the market

• To store the user's favorite car brands

Why is a custom resolver function necessary for the car field?

• Because the car data is too large to handle

• Because the car data needs to be encrypted

• Because the car data is not part of the original schema

• Because the car data is stored in a different database

What does the custom resolver function do with the car IDs?

• It converts the car IDs into user-friendly names

• It maps the car IDs to their respective car details

• It deletes the car IDs from the database

• It encrypts the car IDs for security

How can you verify if the custom resolver function is working correctly?

• By observing changes in the database size

• By retrieving user names and their car makes

• By ensuring the user data is deleted

• By checking if the application crashes

What is the expected output when querying a user with no cars?

• A list of all available cars

• An error message

• An empty array

• A null value