ormconfig.js

const dotenv = require('dotenv');

const isDevEnv = (() => process.env.NODE_ENV === 'development')();

const getEnvVariables = {
   host: isDevEnv ? process.env.DB_HOST_DEV : process.env.PROD_HOST_PROD,
   username: isDevEnv ? process.env.DB_USERNAME_DEV : process.env.DB_USERNAME_PROD,
   password: isDevEnv ? process.env.DB_PASSWORD_DEV : process.env.DB_PASSWORD_PROD,
   databasename: isDevEnv ? process.env.DB_DATABASE_DEV : process.env.DB_DATABASE_PROD,
   logging: isDevEnv ? true : false,
   synchronize: isDevEnv ? true : false,
};

const entities = isDevEnv ? "src/db/entity/**/*.ts" : "build/db/entity/**/*.js";

module.exports = {
   type: "postgres",
   host: getEnvVariables.host,
   port: 5432,
   username: getEnvVariables.username,
   password: getEnvVariables.password,
   database: getEnvVariables.databasename,
   synchronize: getEnvVariables.synchronize,
   logging: getEnvVariables.logging,
   entities: [entities],
   migrations: [
      "src/db/migration/**/*.ts"
   ],
   subscribers: [
      "src/db/subscriber/**/*.ts"
   ],
   cli: {
      entitiesDir: "src/db/entity",
      migrationsDir: "src/db/migration",
      subscribersDir: "src/db/subscriber"
   }
}