完善解决编译时初始化连接问题

src/lib/redis.ts

@@ -1,14 +1,15 @@
 import 'server-only'
-import { createClient } from 'redis'
+import { createClient, type RedisClientType } from 'redis'
 
-declare global {
-  var redis: ReturnType<typeof createClient> | undefined
+const globalForRedis = globalThis as { redis?: RedisClientType }
+
+if (!globalForRedis.redis) {
+  globalForRedis.redis = createClient({ url: process.env.REDIS_URL })
 }
 
-const client = global.redis || createClient({ url: process.env.REDIS_URL })
-if (process.env.NODE_ENV !== 'production') {
-  global.redis = client
+const redis = globalForRedis.redis
+if (process.env.NODE_ENV === 'production') {
+  await redis.connect()
 }
 
-const redis = await client.connect()
 export default redis