Redis 儲存空間

Redis 儲存空間實作透過 node-redis（Node.js 官方 Redis 用戶端）直接連接 Redis，提供高效能儲存方案。它支援獨立 Redis，亦可透過自訂用戶端設定支援 Redis Sentinel 及 Cluster 部署。

安裝

npm install @mastra/redis

用法

使用連線字串

import { RedisStore } from '@mastra/redis'

const storage = new RedisStore({
  id: 'redis-storage',
  connectionString: 'redis://localhost:6379',
})

await storage.init()

使用主機／連接埠設定

import { RedisStore } from '@mastra/redis'

const storage = new RedisStore({
  id: 'redis-storage',
  host: 'localhost',
  port: 6379,
  password: 'your-password',
  db: 0,
})

await storage.init()

使用預先設定的用戶端

如需 Sentinel 或 Cluster 等進階設定，你可以傳入預先設定的 Redis 用戶端：

import { RedisStore } from '@mastra/redis'
import { createClient } from 'redis'

const client = createClient({
  url: 'redis://localhost:6379',
  socket: {
    reconnectStrategy: retries => Math.min(retries * 50, 2000),
  },
})

// Connect the client before passing to RedisStore
await client.connect()

const storage = new RedisStore({
  id: 'redis-storage',
  client,
})

參數

id:

string

此儲存空間執行個體的唯一識別碼

connectionString?:

string

Redis 連線 URL（例如 redis://localhost:6379 或 redis://:password@localhost:6379）

host?:

string

Redis 主機位址

port?:

number

= 6379

Redis 連接埠號碼

password?:

string

用於驗證的 Redis 密碼

db?:

number

= 0

Redis 資料庫編號

client?:

RedisClient

用於進階設定的預先設定 Redis 用戶端（來自 redis 套件）

備註

你必須提供 connectionString、host 或 client 其中一項。這些選項互相排斥。

補充說明

Key 結構

Redis 儲存空間實作使用以下 key 模式：

• Thread：mastra_threads:id:{threadId}
• 訊息：mastra_messages:threadId:{threadId}:id:{messageId}
• 訊息索引：msg-idx:{messageId}（用於快速查找）
• Thread 訊息排序集合：thread:{threadId}:messages
• Workflow snapshot：mastra_workflow_snapshot:namespace:{ns}:workflow_name:{name}:run_id:{id}
• 分數：mastra_scorers:id:{scoreId}
• 資源：mastra_resources:{resourceId}

Redis Sentinel

如使用 Redis Sentinel 進行高可用性部署，請建立自訂用戶端：

import { RedisStore } from '@mastra/redis'
import { createClient } from 'redis'

const client = createClient({
  url: 'redis://sentinel-host:26379',
  // Configure sentinel options as needed for your setup
})

await client.connect()

const storage = new RedisStore({
  id: 'redis-sentinel-storage',
  client,
})

Redis Cluster

如使用 Redis Cluster 部署，請使用 Cluster 用戶端：

import { RedisStore } from '@mastra/redis'
import { createCluster } from 'redis'

const cluster = createCluster({
  rootNodes: [
    { url: 'redis://node-1:6379' },
    { url: 'redis://node-2:6379' },
    { url: 'redis://node-3:6379' },
  ],
})

await cluster.connect()

const storage = new RedisStore({
  id: 'redis-cluster-storage',
  client: cluster,
})

存取底層用戶端

你可以存取底層 Redis 用戶端以執行自訂操作：

const storage = new RedisStore({
  id: 'redis-storage',
  connectionString: 'redis://localhost:6379',
})

await storage.init()

const client = storage.getClient()

// Custom Redis operations
await client.set('custom-key', 'value')
const value = await client.get('custom-key')

關閉連線

關閉應用程式時，請關閉 Redis 連線：

await storage.close()

用法範例

為 Agent 加入 memory

src/mastra/agents/redis-agent.ts

import { Memory } from '@mastra/memory'
import { Agent } from '@mastra/core/agent'
import { RedisStore } from '@mastra/redis'

export const redisAgent = new Agent({
  id: 'redis-agent',
  name: 'Redis Agent',
  instructions:
    'You are an AI agent with the ability to automatically recall memories from previous interactions.',
  model: 'openai/gpt-5.6-sol',
  memory: new Memory({
    storage: new RedisStore({
      id: 'redis-agent-storage',
      connectionString: process.env.REDIS_URL!,
    }),
    options: {
      lastMessages: 10,
    },
  }),
})

使用 Agent

src/test-redis-agent.ts

import 'dotenv/config'

import { mastra } from './mastra'

const threadId = '123'
const resourceId = 'user-456'

const agent = mastra.getAgent('redisAgent')

const message = await agent.stream('My name is Mastra', {
  memory: {
    thread: threadId,
    resource: resourceId,
  },
})

await message.textStream.pipeTo(new WritableStream())

const stream = await agent.stream("What's my name?", {
  memory: {
    thread: threadId,
    resource: resourceId,
  },
  memoryOptions: {
    lastMessages: 5,
  },
})

for await (const chunk of stream.textStream) {
  process.stdout.write(chunk)
}

配合 Mastra 執行個體使用

import { Mastra } from '@mastra/core'
import { RedisStore } from '@mastra/redis'

const storage = new RedisStore({
  id: 'mastra-storage',
  host: 'localhost',
  port: 6379,
})

const mastra = new Mastra({
  storage, // init() called automatically
})

如直接使用儲存空間而不透過 Mastra，請明確呼叫 init()：

import { RedisStore } from '@mastra/redis'

const storage = new RedisStore({
  id: 'redis-storage',
  host: 'localhost',
  port: 6379,
})

await storage.init()

// Access domain-specific stores via getStore()
const memoryStore = await storage.getStore('memory')
const thread = await memoryStore?.getThreadById({ threadId: '...' })