Scalars

Types of data specified in queries, entities, and inputs include the following scalars. Learn about other types of data.

Type

Description

Boolean

Represents true or false values.

Date

An ISO-8601 encoded UTC date time string, such as "2020-06-10".

Float

Represents signed double-precision fractional values as specified by IEEE 754.

ID

Represents a unique identifier, often used to refetch an object or as key for a cache. The ID type appears in a JSON response as a String; however, it is not intended to be human-readable. When expected as an input type, any string (such as "4") or integer (such as 4) input value will be accepted as an ID.

Int

Represents non-fractional signed whole numeric values. Int can represent values between -(2^31) and 2^31 - 1.

Map

 

Time

An ISO-8601 encoded UTC time string, such as "20:47:55Z".

String

Represents textual data, represented as UTF-8 character sequences. The String type is most often used by GraphQL to represent free-form human-readable text.