make redis host and port optional

src/MutexLock.ts

@@ -19,7 +19,7 @@ export class MutexLock {
 	static async create(options: MutexOptions) {
 		const redisClient = await redis
 			.createClient({
-				url: `redis://${options.redis.host}:${options.redis.port}`,
+				url: `redis://${options.redis?.host ?? "127.0.0.1"}:${options.redis?.port ?? 6379}`,
 			})
 			.connect();
 

src/types.ts

@@ -1,7 +1,7 @@
 export type MutexOptions = {
-  redis: {
+  redis?: {
-    host: string;
+    host?: string;
-    port: number;
+    port?: number;
   };
   mutex?: {
     checkInterval?: number;