Custom API with Blynk

Hi,

I am a nodejs developer and trying to dig into blynk server to write some custom api for signup. I had written api to create new user. It is showing user is added in list in blynk admistration but not able to login with that user.

I have done below code for that:

userDao.add(username, password, appName)

Can you please give me suggestion to achieve this.

Thanks

Navjot.