refont back express

backend/config/cors.js

@@ -0,0 +1,16 @@
+import dotenv from 'dotenv';
+import * as path from "node:path";
+
+const envFile = `.env`;
+dotenv.config({ path: path.resolve(process.cwd(), envFile), override: true });
+
+const allowedOrigin = process.env.ALLOWED_ORIGIN || 'http://localhost:4200';
+
+const corsOptions = {
+  origin: allowedOrigin,
+  methods: ['GET', 'POST', 'PUT', 'DELETE', 'PATCH', 'OPTIONS'],
+  allowedHeaders: ['Content-Type', 'Authorization'],
+  credentials: true,
+};
+
+export default corsOptions;

backend/config/db.js

@@ -0,0 +1,13 @@
+import mariadb from 'mariadb';
+import dotenv from 'dotenv';
+
+dotenv.config();
+
+const pool = mariadb.createPool({
+    host: process.env.DB_HOST,
+    user: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_DATABASE
+});
+
+export default pool;