[keycloak-user] Not able to set credentials for a user while creating a user through my own Rest API

Hey I am writing to create user by calling keycloak rest APIs through my own REST api's. I am able to set all other properties of a user and create a user, but when i try assigning the credentials , I get stuck. First of all Is it possible to do it externally create such scenario..? If yes, how can i do that. Cheers Abhishek