PhoenixApiToolkit.GenericRequestValidator.query_order_by

You're seeing just the function query_order_by, go back to PhoenixApiToolkit.GenericRequestValidator module for more information.
Link to this function

query_order_by(changeset, attrs, orderables)

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Specs

query_order_by(map() | Ecto.Changeset.t() | schema(), map(), Enum.t()) ::
  Ecto.Changeset.t()

Validates the order_by query parameter of an index endpoint.

Examples

iex> resource_schema() |> query_order_by(%{"order_by" => "asc:last_name"}, ~w(last_name) |> MapSet.new())
#Ecto.Changeset<action: nil, changes: %{order_by: [asc: :last_name]}, errors: [], data: %{}, valid?: true>

See PhoenixApiToolkit.Ecto.Validators.validate_order_by/2 for more examples.