Method: GraphQL::Dataloader::Source#fetch

Defined in:

lib/graphql/dataloader/source.rb

#fetch(keys) ⇒ Array<Object>

Subclasses must implement this method to return a value for each of keys

Parameters:

• keys (Array<Object>) —

  keys passed to #load, #load_all, #request, or #request_all

Returns:

• (Array<Object>) —

  A loaded value for each of keys. The array must match one-for-one to the list of keys.

# File 'lib/graphql/dataloader/source.rb', line 98

def fetch(keys)
  # somehow retrieve these from the backend
  raise "Implement `#{self.class}#fetch(#{keys.inspect}) to return a record for each of the keys"
end