params =
params
|> Map.delete(:tagged)
- |> Enum.filter(&(not is_nil(&1)))
- |> Map.new(fn {key, value} -> {to_string(key), value} end)
- |> Map.put("tag", params[:tagged])
+ |> Map.put(:tag, params[:tagged])
activities = ActivityPub.fetch_user_activities(user, reading_user, params)