# Libraries

- [Constants](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/libraries/constants.md)
- [DragonswapLibrary](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/libraries/dragonswaplibrary.md)
- [PoolTicksCounter](/dragonswap/resources/developer-resources/smart-contracts/dragonswapv2/smart-router/libraries/pooltickscounter.md)