Add fullstack example

examples/fullstack/backend/config/database.ts

@@ -0,0 +1,24 @@
+import env from '#start/env'
+import { defineConfig } from '@adonisjs/lucid'
+
+const dbConfig = defineConfig({
+  connection: 'postgres',
+  connections: {
+    postgres: {
+      client: 'pg',
+      connection: {
+        host: env.get('DB_HOST'),
+        port: env.get('DB_PORT'),
+        user: env.get('DB_USER'),
+        password: env.get('DB_PASSWORD'),
+        database: env.get('DB_DATABASE'),
+      },
+      migrations: {
+        naturalSort: true,
+        paths: ['database/migrations'],
+      },
+    },
+  },
+})
+
+export default dbConfig