# TODO: Extract this into the Websub module
def websub_subscription_confirmation(conn, %{"id" => id, "hub.mode" => "subscribe", "hub.challenge" => challenge, "hub.topic" => topic} = params) do
# TODO: Extract this into the Websub module
def websub_subscription_confirmation(conn, %{"id" => id, "hub.mode" => "subscribe", "hub.challenge" => challenge, "hub.topic" => topic} = params) do