Schema testing in GraphQL - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a GraphQL type for a User with an ID field.

GraphQL

type User { id: [1] }

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

AID!

BString

CInt

DBoolean

Attempts:

3 left

💡 Hint

Common Mistakes

Using String instead of ID for unique identifiers.

Forgetting the exclamation mark to make the field required.

The ID! type is used for unique identifiers and the exclamation mark means it is required.

2fill in blank

medium

Complete the code to add a name field of type String to the User type.

GraphQL

type User { name: [1] }

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

AString!

BID

CBoolean

DInt

Attempts:

3 left

💡 Hint

Common Mistakes

Using ID instead of String for text fields.

Omitting the exclamation mark if the field is required.

The String! type means the name is a required string field.

3fill in blank

hard

Fix the error in the schema by completing the field type for age.

GraphQL

type User { age: [1] }

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

AString!

BBoolean

CID

DInt!

Attempts:

3 left

💡 Hint

Common Mistakes

Using String or Boolean for age.

Forgetting the exclamation mark for required fields.

The Int! type is used for required integer fields like age.

4fill in blank

hard

Fill both blanks to define a Query type with a user field returning a User by ID.

GraphQL

type Query { user(id: [1]): [2] }

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

AID!

BUser

CString

DBoolean

Attempts:

3 left

💡 Hint

Common Mistakes

Using String instead of ID for the id argument.

Returning String or Boolean instead of User.

The user query takes a required ID! argument and returns a User type.

5fill in blank

hard

Fill all three blanks to define a Mutation type with createUser taking name and age and returning User.

GraphQL

type Mutation { createUser(name: [1], age: [2]): [3] }

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

AString!

BInt!

CUser

DBoolean

Attempts:

3 left

💡 Hint

Common Mistakes

Using optional types instead of required with exclamation marks.

Returning Boolean instead of User.

The createUser mutation takes a required String! name and a required Int! age, and returns a User.