graphql/type/introspection

Functions

isIntrospectionType()

Returns true when the type is one of the built-in introspection types.

Signature:

isIntrospectionType(type: GraphQLNamedType): boolean

Arguments

Returns

Example

import { isIntrospectionType, GraphQLString } from 'graphql/type';
 
const result = isIntrospectionType(GraphQLString);
 
// result: true for matching GraphQL types

Constants

__Schema

The introspection type describing a GraphQL schema.

__Directive

The introspection type describing a GraphQL directive.

__DirectiveLocation

The introspection enum describing directive locations.

__Type

The introspection type describing GraphQL types.

__Field

The introspection type describing object and interface fields.

__InputValue

The introspection type describing arguments and input fields.

__EnumValue

The introspection type describing enum values.

__TypeKind

The introspection enum describing GraphQL type kinds.

SchemaMetaFieldDef

Note that these are GraphQLField and not GraphQLFieldConfig, so the format for args is different.

TypeMetaFieldDef

The __type meta field definition used by introspection.

TypeNameMetaFieldDef

The __typename meta field definition used by execution and introspection.

introspectionTypes

All introspection types defined by the GraphQL specification.

Enumerations

TypeKind

The introspection enum describing the different kinds of GraphQL types.

Members