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GraphQL · Function

isCompositeType

isCompositeType checks whether a GraphQL type is an object, interface, or union. These types contain selectable fields or possible object types, unlike scalar and enum leaf types.

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Syntax

isCompositeType(type)

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  • isObjectType
  • isInterfaceType
  • isUnionType
  • Object types
  • Interfaces
  • Unions
  • Schemas and Types

Source: Schemas and Types. Checked 2026-11-03.