📝 Milestone: Session 122: Redis Integration - Phase A (codebase changes) ...

Date: 2026-02-19
Time: 15:01:07 UTC
Session: gspace1-122.124
Agent: backend
Confidence: 95%
Status: ✅ Documented

📋 Decision Context

Question:

Session 122: Redis Integration - Phase A (codebase changes) complete

Task: Session 122: Redis Integration Phase A complete

🎯 Decision Made

Chosen:

All 4 APIs integrated with shared RedisModule from @libs-api/backend-core. Builds verified. Zero lint errors.

Options Considered:

• No alternatives documented

💭 Reasoning

Created shared RedisModule in @libs-api/backend-core with: RedisService (ioredis + graceful fallback + family:0 for Railway), RedisThrottlerStorage (ThrottlerStorage v6 implementation with Redis INCR/PEXPIRE), RedisIoAdapter (Socket.IO cross-instance broadcasting via @socket.io/redis-adapter), setupRedisIoAdapter() factory function. Integrated into all 4 APIs: backend-api (REDIS_URL db1), backend-ai-api (REDIS_URL db2), backend-docs-api (REDIS_URL db3), backend-vitto-api (VITTO_REDIS_URL db0). Refactored DistributedLockService to use shared RedisService instead of creating its own connection. All builds pass (3/4 clean, vitto has 6 pre-existing type errors unrelated to Redis). Zero lint errors. Ready for browser agent to proceed with Railway consolidation.

📁 Files Involved

• libs/libs-api/backend-core/src/lib/redis/redis.service.ts
• libs/libs-api/backend-core/src/lib/redis/redis.module.ts
• libs/libs-api/backend-core/src/lib/redis/redis-throttler-storage.ts
• libs/libs-api/backend-core/src/lib/redis/redis-io-adapter.ts
• libs/libs-api/backend-core/src/lib/redis/redis.constants.ts
• libs/libs-api/backend-core/src/lib/redis/index.ts
• apis/backend-api/src/app/app.module.ts
• apis/backend-api/src/main.ts
• apis/backend-ai-api/src/app/app.module.ts
• apis/backend-ai-api/src/main.ts
• apis/backend-ai-api/src/app/infrastructure/services/distributed-lock.service.ts
• apis/backend-docs-api/src/app/app.module.ts
• apis/backend-docs-api/src/main.ts
• apis/backend-vitto-api/src/app/app.module.ts

🔗 Related

• Decision ID: dev_1771513267487_ij8hzjp
• Session: 122
• Workspace: gspace1

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