Module: GraphQL

Defined in:

lib/graphql.rb,
lib/graphql/version.rb,
lib/graphql/language.rb,
lib/graphql/base_type.rb,
lib/graphql/scalar_type.rb,
lib/graphql/introspection.rb,
lib/graphql/query/context.rb,
lib/graphql/language/nodes.rb,
lib/graphql/query/executor.rb,
lib/graphql/schema/printer.rb,
lib/graphql/execution_error.rb,
lib/graphql/language/parser.rb,
lib/graphql/query/arguments.rb,
lib/graphql/query/variables.rb,
lib/graphql/schema/type_map.rb,
lib/graphql/language/visitor.rb,
lib/graphql/definition_helpers.rb,
lib/graphql/language/transform.rb,
lib/graphql/query/literal_input.rb,
lib/graphql/query/base_execution.rb,
lib/graphql/query/serial_execution.rb,
lib/graphql/schema/type_expression.rb,
lib/graphql/schema/middleware_chain.rb,
lib/graphql/schema/rescue_middleware.rb,
lib/graphql/query/base_execution/value_resolution.rb,
lib/graphql/query/serial_execution/field_resolution.rb,
lib/graphql/query/serial_execution/operation_resolution.rb,
lib/graphql/query/serial_execution/selection_resolution.rb

Defined Under Namespace

Modules: DefinitionHelpers, Introspection, Language, StaticValidation, TypeKinds Classes: Argument, BaseType, Directive, EnumType, ExecutionError, Field, InputObjectType, InterfaceType, ListType, NonNullType, ObjectType, ParseError, Query, Repl, ScalarType, Schema, UnionType

Constant Summary

ID_TYPE =

GraphQL::ScalarType.define do
  name "ID"
  coerce -> (value) { value.to_s }
end

VERSION =

"0.10.1"

INT_TYPE =

GraphQL::ScalarType.define do
  name "Int"
  coerce -> (value) { value.is_a?(Numeric) ? value.to_i : nil }
end

TRANSFORM =

GraphQL::Language::Transform.new

PARSER =

GraphQL::Language::Parser.new

FLOAT_TYPE =

GraphQL::ScalarType.define do
  name "Float"
  coerce -> (value) do
    value.respond_to?(:to_f) ? value.to_f : nil
  end
end

STRING_TYPE =

GraphQL::ScalarType.define do
  name "String"
  coerce -> (value) { value.to_s }
end

BOOLEAN_TYPE =

GraphQL::ScalarType.define do
  name "Boolean"
  coerce -> (value) { !!value }
end

Class Method Summary

• .parse(string, as: nil) ⇒ GraphQL::Language::Nodes::Document

  Turn a query string into an AST.

Class Method Details

.parse(string, as: nil) ⇒ GraphQL::Language::Nodes::Document

Turn a query string into an AST

Parameters:

• string (String) —

  a GraphQL query string

• as (Symbol) (defaults to: nil) —

  If you want to use this to parse some piece of a document, pass the rule name (from Parser)

Returns:

• (GraphQL::Language::Nodes::Document)

# File 'lib/graphql.rb', line 21

def self.parse(string, as: nil)
  parser = as ? GraphQL::PARSER.send(as) : GraphQL::PARSER
  tree = parser.parse(string)
  GraphQL::TRANSFORM.apply(tree)
rescue Parslet::ParseFailed => error
  line, col = error.cause.source.line_and_column(error.cause.pos)
  raise GraphQL::ParseError.new(error.message, line, col, string)
end