Schema definition 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.

GraphQL

type User { id: [1] }

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

AString

BID!

CInt

DBoolean

Attempts:

3 left

💡 Hint

Common Mistakes

Using String instead of ID for unique identifiers.

Forgetting the exclamation mark for required fields.

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

BInt

CBoolean

DFloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using Int or Boolean for text fields.

Forgetting to specify the type.

The String type is used for text fields like names.

3fill in blank

hard

Fix the error in the schema by completing the type definition correctly.

GraphQL

type User { id: ID, name: [1] }

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

AString!

BInt!

CBoolean!

DFloat!

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting the exclamation mark for required fields.

Using wrong types like Int or Boolean for names.

The name field should be a required string, so use String!.

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 a name and returning a User.

GraphQL

type Mutation { createUser(name: [1]): [2] } type User { id: [3] }

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

AString!

BUser

CID!

DBoolean

Attempts:

3 left

💡 Hint

Common Mistakes

Using optional types instead of required with !.

Mixing up return types and argument types.

The createUser mutation takes a required String! name and returns a User. The User type has an id of type ID!.