refactoring

Resolve #7779

packages/backend/src/db/redis.ts

@@ -0,0 +1,19 @@
+import * as redis from 'redis';
+import config from '@/config/index';
+
+export function createConnection() {
+	return redis.createClient(
+		config.redis.port,
+		config.redis.host,
+		{
+			password: config.redis.pass,
+			prefix: config.redis.prefix,
+			db: config.redis.db || 0
+		}
+	);
+}
+
+export const subsdcriber = createConnection();
+subsdcriber.subscribe(config.host);
+
+export const redisClient = createConnection();