Some help:
Whole project: https://github.com/jonashackt/spring-boot-vuejs
Heroku database: https://devcenter.heroku.com/articles/heroku-postgresql#pg-psql
Some help:
Whole project: https://github.com/jonashackt/spring-boot-vuejs
Heroku database: https://devcenter.heroku.com/articles/heroku-postgresql#pg-psql