text: CREATE USER tractionuser CREATEDB;
  CREATE USER holderuser PASSWORD 'holderPass'; 
  CREATE USER verifieruser PASSWORD 'verifierPass';
  
  CREATE DATABASE traction;
  \connect traction
  
  CREATE SCHEMA IF NOT EXISTS holder AUTHORIZATION holderuser;
  CREATE SCHEMA IF NOT EXISTS verifier AUTHORIZATION verifieruser;
  
  GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA holder TO holderuser;
  GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA verifier TO verifieruser;