chore: Add database create & drop commands

packages/backend/bin/database/create.ts

@@ -0,0 +1,42 @@
+import appConfig from '../../src/config/app';
+import logger from '../../src/helpers/logger';
+import client from './client';
+
+const createDatabaseAndUser = async () => {
+  if(appConfig.appEnv !== 'development' && appConfig.appEnv !== 'test') {
+    const errorMessage = 'Database creation can be used only with development or test environments!'
+    logger.error(errorMessage)
+
+    return;
+  }
+
+  await client.connect();
+  await createDatabase();
+  await createDatabaseUser();
+  await grantPrivileges();
+
+  await client.end();
+}
+
+const createDatabase = async () => {
+  await client.query(`CREATE DATABASE ${appConfig.postgresDatabase}`);
+  logger.info(`Database: ${appConfig.postgresDatabase} created!`);
+}
+
+const createDatabaseUser = async () => {
+  await client.query(`CREATE USER ${appConfig.postgresUsername}`);
+  logger.info(`Database User: ${appConfig.postgresUsername} created!`);
+}
+
+const grantPrivileges = async () => {
+  await client.query(
+    `GRANT ALL PRIVILEGES ON DATABASE ${appConfig.postgresDatabase} TO ${appConfig.postgresUsername};`
+  );
+
+  logger.info(
+    `${appConfig.postgresUsername} has granted all privileges on ${appConfig.postgresDatabase}!`
+  );
+
+}
+
+createDatabaseAndUser();