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/invalid_null_error.rb,
lib/graphql/language/transform.rb,
lib/graphql/query/literal_input.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/definition_helpers/type_definer.rb,
lib/graphql/definition_helpers/defined_by_config.rb,
lib/graphql/definition_helpers/string_named_hash.rb,
lib/graphql/static_validation/validation_context.rb,
lib/graphql/definition_helpers/non_null_with_bang.rb,
lib/graphql/query/serial_execution/field_resolution.rb,
lib/graphql/query/serial_execution/value_resolution.rb,
lib/graphql/query/serial_execution/execution_context.rb,
lib/graphql/query/serial_execution/operation_resolution.rb,
lib/graphql/query/serial_execution/selection_resolution.rb,
lib/graphql/static_validation/rules/document_does_not_exceed_max_depth.rb

Defined Under Namespace

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

Constant Summary collapse

ID_TYPE = 
GraphQL::ScalarType.define do
  name "ID"
  coerce -> (value) { value.to_s }
end
VERSION = 
"0.11.1"
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.is_a?(Numeric) ? 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 collapse

Class Method Details

.parse(query_string) ⇒ GraphQL::Language::Nodes::Document

Turn a query string into an AST

Parameters:

  • a (String) —

    GraphQL query string

Returns:



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

def self.parse(query_string)
  parse_with_parslet(query_string)
end

.parse_with_parslet(string) ⇒ Object 



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# File 'lib/graphql.rb', line 25

def self.parse_with_parslet(string)
  tree = GraphQL::PARSER.parse(string)
  document = GraphQL::TRANSFORM.apply(tree)
  if !document.is_a?(GraphQL::Language::Nodes::Document)
    raise("Parse failed! Sorry, somehow we failed to turn this string into a document. Please report this bug!")
  end
  document
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