Why testing validates schema behavior in GraphQL - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a GraphQL query that fetches a user's name.

GraphQL

query GetUserName { user(id: 1) { [1] } }

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

Aname

Bage

Cemail

Daddress

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing a field that does not represent the user's name.

Using a field that does not exist in the schema.

The field name correctly fetches the user's name as requested.

2fill in blank

medium

Complete the code to add a variable for user ID in the query.

GraphQL

query GetUser($id: ID!) { user(id: [1]) { name } }

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

A$id

B1

CuserId

DID

Attempts:

3 left

💡 Hint

Common Mistakes

Using a literal value instead of the variable.

Using a variable name without the dollar sign.

The variable $id is used to pass the user ID dynamically to the query.

3fill in blank

hard

Fix the error in the mutation to update a user's email.

GraphQL

mutation UpdateEmail($id: ID!, $email: String!) { updateUser(id: [1], email: $email) { id email } }

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

Aid

B$id

CuserId

Demail

Attempts:

3 left

💡 Hint

Common Mistakes

Using the field name instead of the variable.

Omitting the dollar sign before the variable.

The variable $id must be used to pass the user ID in the mutation arguments.

4fill in blank

hard

Fill both blanks to define a fragment for user details and use it in a query.

GraphQL

fragment UserDetails on User { [1] [2] } query GetUser { user(id: 1) { ...UserDetails } }

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Aname

Bemail

Cage

Daddress

Attempts:

3 left

💡 Hint

Common Mistakes

Including fields not present in the User type.

Using fields unrelated to user details.

The fragment includes name and email fields to fetch user details.

5fill in blank

hard

Fill all three blanks to write a query with variables and aliasing.

GraphQL

query GetUserInfo($userId: ID!) { userInfo: user(id: [1]) { [2] email: [3] } }

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

A$userId

Bname

CemailAddress

Did

Attempts:

3 left

💡 Hint

Common Mistakes

Using literal values instead of variables.

Confusing alias and field names.

Omitting the dollar sign for variables.

The query uses variable $userId for the ID, fetches name, and aliases emailAddress as email.