Jaewon
Sorry for late reply for the issue. I noticed this just now. Would you mind for updating the node js? (I **_guess_** memory leak happened on out-dated node js.)
No, It isn't. uses non-official API.
- [코빗](https://www.korbit.co.kr)
넵, 시간 나는대로 배포하겠습니다
https://github.com/wonism/upbit-api-node/commit/579c3884e657e69af4d535df9277d15364840bc1 1.1.2 릴리즈 하였고, Ping 기능은 따로 없습니다.