fix time geneate logic and replace default datetime by luxon

src/Graphql/graphql.service.ts

@@ -37,6 +37,7 @@ export class GraphqlService {
     // redis context cache
     const cachedUser = await this.redis.getUser(sessionId)
     if (cachedUser) {
+      Logger.log(`Cache hit for sessionId: ${sessionId}`)
       return cachedUser
     }
     // check if the token is valid
@@ -53,4 +54,10 @@ export class GraphqlService {
     await this.redis.setUser(sessionId, user, session.expireAt)
     return user
   }
+
+  async invalidateCache(sessionId: string) {
+    // invalidate redis cache for sessionId
+    await this.redis.del(sessionId)
+    Logger.log(`Invalidated cache for sessionId: ${sessionId}`)
+  }
 }