+
+ def set_request_signatures(url_or_host) when is_binary(url_or_host) do
+ host = host(url_or_host)
+ existing_record = Repo.get_by(Instance, %{host: host})
+ changes = %{has_request_signatures: true}
+
+ cond do
+ is_nil(existing_record) ->
+ %Instance{}
+ |> changeset(Map.put(changes, :host, host))
+ |> Repo.insert()
+
+ true ->
+ existing_record
+ |> changeset(changes)
+ |> Repo.update()
+ end
+ end
+
+ def set_request_signatures(_), do: {:error, :invalid_input}