Module: GraphQL::Current

Defined in:
lib/graphql/current.rb

Overview

This module exposes Fiber-level runtime information.

It won’t work across unrelated fibers, although it will work in child Fibers.

Examples:

Setting Up ActiveRecord::QueryLogs

 config.active_record.query_log_tags = [ :namespaced_controller, :action, :job, # ...  { # GraphQL runtime info:  current_graphql_operation: -> { GraphQL::Current.operation_name }, current_graphql_field: -> { GraphQL::Current.field&.path }, current_dataloader_source: -> { GraphQL::Current.dataloader_source_class }, # ...  }, ]

Class Method Summary collapse

Class Method Details

.dataloader_source ⇒ GraphQL::Dataloader::Source?

Returns The currently-running source, if there is one.

Returns:

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# File 'lib/graphql/current.rb', line 53 def self.dataloader_source Fiber[:__graphql_current_dataloader_source] end

.dataloader_source_class ⇒ Class?

Returns The currently-running Dataloader::Source class, if there is one.

Returns:

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# File 'lib/graphql/current.rb', line 48 def self.dataloader_source_class Fiber[:__graphql_current_dataloader_source]&.class end

.field ⇒ GraphQL::Field?

Returns The currently-running field, if there is one.

Returns:

  • (GraphQL::Field, nil) —

    The currently-running field, if there is one.

See Also:

  • for a string identifying this field
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# File 'lib/graphql/current.rb', line 43 def self.field Fiber[:__graphql_runtime_info]&.values&.first&.current_field end

.operation_name ⇒ String?

Returns Comma-joined operation names for the currently-running Execution::Multiplex. nil if all operations are anonymous.

Returns:

  • (String, nil) —

    Comma-joined operation names for the currently-running Execution::Multiplex. nil if all operations are anonymous.

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# File 'lib/graphql/current.rb', line 26 def self.operation_name if (m = Fiber[:__graphql_current_multiplex]) m.context[:__graphql_current_operation_name] ||= begin names = m.queries.map { |q| q.selected_operation_name } if names.all?(&:nil?) nil else names.join(",") end end else nil end end