Why tooling improves developer experience in GraphQL - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

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

GraphQL

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

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Aid

Bage

Cemail

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing a field that does not represent the user's name, like age or email.

The field name 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 GetUserName($id: [1]) { user(id: $id) { name } }

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AString

BInt

CBoolean

DFloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using String or Boolean for the user ID variable type.

The user ID is typically an integer, so Int is the correct type.

3fill in blank

hard

Fix the error in the query by completing the missing type declaration.

GraphQL

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

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AInt

BFloat

CString

DBoolean

Attempts:

3 left

💡 Hint

Common Mistakes

Using nullable types or wrong types like String or Boolean.

The exclamation mark ! means the variable is required. The user ID should be an Int and required.

4fill in blank

hard

Fill both blanks to create a mutation that updates a user's email.

GraphQL

mutation UpdateEmail($id: [1]!, $email: [2]!) { updateUser(id: $id, email: $email) { id email } }

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AInt

BString

CBoolean

DFloat

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up types or forgetting the required !.

User ID is an Int! and email is a String! because emails are text.

5fill in blank

hard

Fill all three blanks to write a query that fetches a list of users with their IDs, names, and emails.

GraphQL

query GetUsers { users { [1] [2] [3] } }

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

Aid

Bname

Cemail

Dage

Attempts:

3 left

💡 Hint

Common Mistakes

Including unrelated fields like age or missing required fields.

The query fetches id, name, and email for each user.