chore: Add database create & drop commands

packages/backend/.env-example

@@ -3,3 +3,8 @@ PROTOCOL=http
 PORT=3000
 CORS_PORT=3001
 APP_ENV=development
+POSTGRES_DATABASE=automatisch_development
+POSTGRES_PORT=5432
+POSTGRES_HOST=localhost
+POSTGRES_USERNAME=automatish_development_user
+POSTGRESS_PASSWORD=

packages/backend/bin/database/client.ts

@@ -0,0 +1,9 @@
+import { Client } from 'pg';
+
+const client = new Client({
+  host: 'localhost',
+  user: 'postgres',
+  port: 5432,
+})
+
+export default client;

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();

packages/backend/bin/database/drop.ts

@@ -0,0 +1,29 @@
+import appConfig from '../../src/config/app';
+import logger from '../../src/helpers/logger';
+import client from './client';
+
+const dropDatabase = async () => {
+  if (appConfig.appEnv != 'development' && appConfig.appEnv != 'test') {
+    const errorMessage = 'Drop database command can be used only with development or test environments!'
+
+    logger.error(errorMessage)
+    return;
+  }
+
+  await client.connect();
+  await dropDatabaseAndUser();
+
+  await client.end();
+}
+
+const dropDatabaseAndUser = async() => {
+  await client.query(`DROP DATABASE IF EXISTS ${appConfig.postgresDatabase}`);
+  logger.info(`Database: ${appConfig.postgresDatabase} removed!`);
+
+  await client.query(`DROP USER IF EXISTS ${appConfig.postgresUsername}`);
+  logger.info(`Database User: ${appConfig.postgresUsername} removed!`);
+}
+
+
+
+dropDatabase();

packages/backend/package.json

@@ -6,7 +6,9 @@
     "dev": "nodemon --watch 'src/**/*.ts' --exec 'ts-node' src/app.ts",
     "build": "tsc",
     "start": "node dist/index.js",
-    "test": "echo \"Error: run tests from root\" && exit 1"
+    "test": "echo \"Error: run tests from root\" && exit 1",
+    "db:create": "ts-node ./bin/database/create.ts",
+    "db:drop": "ts-node ./bin/database/drop.ts"
   },
   "dependencies": {
     "cors": "^2.8.5",
@@ -16,6 +18,7 @@
     "express-graphql": "^0.12.0",
     "http-errors": "~1.6.3",
     "morgan": "^1.10.0",
+    "pg": "^8.7.1",
     "winston": "^3.3.3"
   },
   "contributors": [
@@ -46,6 +49,7 @@
     "@types/http-errors": "^1.8.1",
     "@types/morgan": "^1.9.3",
     "@types/node": "^16.10.2",
+    "@types/pg": "^8.6.1",
     "nodemon": "^2.0.13",
     "ts-node": "^10.2.1"
   }

packages/backend/src/config/app.ts

@@ -7,6 +7,11 @@ type AppConfig = {
   port: string,
   corsPort: string,
   appEnv: string,
+  postgresDatabase: string,
+  postgresPort: number,
+  postgresHost: string,
+  postgresUsername: string,
+  postgresPassword: string
 }
 
 const appConfig: AppConfig = {
@@ -15,6 +20,11 @@ const appConfig: AppConfig = {
   port: process.env.PORT || '3000',
   corsPort: process.env.CORS_PORT || '3001',
   appEnv: process.env.APP_ENV || 'development',
+  postgresDatabase: process.env.POSTGRES_DATABASE || 'automatisch_development',
+  postgresPort: parseInt(process.env.POSTGRES_PORT) || 5432,
+  postgresHost: process.env.POSTGRES_HOST || 'localhost',
+  postgresUsername: process.env.POSTGRES_USERNAME || 'automatish_development_user',
+  postgresPassword: process.env.POSTGRESS_PASSWORD,
 }
 
 export default appConfig;