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Contents
# frozen_string_literal: true
module GraphQL
module Introspection
class SchemaType < Introspection::BaseObject
graphql_name "__Schema"
description "A GraphQL Schema defines the capabilities of a GraphQL server. It exposes all "\
"available types and directives on the server, as well as the entry points for "\
"query, mutation, and subscription operations."
field :types, [GraphQL::Schema::LateBoundType.new("__Type")], "A list of all types supported by this server.", null: false
field :queryType, GraphQL::Schema::LateBoundType.new("__Type"), "The type that query operations will be rooted at.", null: false
field :mutationType, GraphQL::Schema::LateBoundType.new("__Type"), "If this server supports mutation, the type that mutation operations will be rooted at.", null: true
field :subscriptionType, GraphQL::Schema::LateBoundType.new("__Type"), "If this server support subscription, the type that subscription operations will be rooted at.", null: true
field :directives, [GraphQL::Schema::LateBoundType.new("__Directive")], "A list of all directives supported by this server.", null: false
def types
types = @context.warden.types
if context.interpreter?
types.map { |t| t.metadata[:type_class] || raise("Invariant: can't introspect non-class-based type: #{t}") }
else
types
end
end
def query_type
permitted_root_type("query")
end
def mutation_type
permitted_root_type("mutation")
end
def subscription_type
permitted_root_type("subscription")
end
def directives
context.schema.directives.values
end
private
def permitted_root_type(op_type)
@context.warden.root_type_for_operation(op_type)
end
end
end
end
Version data entries
22 entries across 22 versions & 1 rubygems