Behaviour for custom RPC error handlers.

Error handlers allow you to customize how errors are transformed and presented to TypeScript clients. They are called after the Error protocol transformation but before the final response.

Context

The context map passed to handle_error/2 may contain:

• :domain - The domain module
• :resource - The resource module
• :action - The action being performed
• :actor - The actor performing the action
• Additional application-specific context

Example Implementation

defmodule MyApp.CustomErrorHandler do
  @behaviour AshTypescript.Rpc.ErrorHandler

  def handle_error(error, context) do
    # Add custom error tracking
    Logger.error("RPC Error: #{inspect(error)}")

    # Customize error format
    error
    |> Map.put(:timestamp, DateTime.utc_now())
    |> Map.update(:message, "Error", &translate_message/1)
  end

  defp translate_message(message) do
    # Custom translation logic
    message
  end
end