change agent/chain with memory to use runnable

This commit is contained in:
Henry
2024-01-08 13:02:56 +00:00
parent d5b8db5599
commit 02482f1b38
38 changed files with 1752 additions and 1394 deletions
@@ -3,13 +3,7 @@ import { BufferMemory, BufferMemoryInput } from 'langchain/memory'
import { UpstashRedisChatMessageHistory } from 'langchain/stores/message/upstash_redis'
import { mapStoredMessageToChatMessage, AIMessage, HumanMessage, StoredMessage, BaseMessage } from 'langchain/schema'
import { FlowiseMemory, IMessage, INode, INodeData, INodeParams, MemoryMethods, MessageType } from '../../../src/Interface'
import {
convertBaseMessagetoIMessage,
getBaseClasses,
getCredentialData,
getCredentialParam,
serializeChatHistory
} from '../../../src/utils'
import { convertBaseMessagetoIMessage, getBaseClasses, getCredentialData, getCredentialParam } from '../../../src/utils'
import { ICommonObject } from '../../../src/Interface'
class UpstashRedisBackedChatMemory_Memory implements INode {
@@ -51,7 +45,8 @@ class UpstashRedisBackedChatMemory_Memory implements INode {
label: 'Session Id',
name: 'sessionId',
type: 'string',
description: 'If not specified, the first CHAT_MESSAGE_ID will be used as sessionId',
description:
'If not specified, a random id will be used. Learn <a target="_blank" href="https://docs.flowiseai.com/memory/long-term-memory#ui-and-embedded-chat">more</a>',
default: '',
additionalParams: true,
optional: true
@@ -70,40 +65,12 @@ class UpstashRedisBackedChatMemory_Memory implements INode {
async init(nodeData: INodeData, _: string, options: ICommonObject): Promise<any> {
return initalizeUpstashRedis(nodeData, options)
}
//@ts-ignore
memoryMethods = {
async clearSessionMemory(nodeData: INodeData, options: ICommonObject): Promise<void> {
const redis = await initalizeUpstashRedis(nodeData, options)
const sessionId = nodeData.inputs?.sessionId as string
const chatId = options?.chatId as string
options.logger.info(`Clearing Upstash Redis memory session ${sessionId ? sessionId : chatId}`)
await redis.clear()
options.logger.info(`Successfully cleared Upstash Redis memory session ${sessionId ? sessionId : chatId}`)
},
async getChatMessages(nodeData: INodeData, options: ICommonObject): Promise<string> {
const redis = await initalizeUpstashRedis(nodeData, options)
const key = 'chat_history'
const memoryResult = await redis.loadMemoryVariables({})
return serializeChatHistory(memoryResult[key])
}
}
}
const initalizeUpstashRedis = async (nodeData: INodeData, options: ICommonObject): Promise<BufferMemory> => {
const baseURL = nodeData.inputs?.baseURL as string
const sessionTTL = nodeData.inputs?.sessionTTL as string
const chatId = options?.chatId as string
let isSessionIdUsingChatMessageId = false
let sessionId = ''
if (!nodeData.inputs?.sessionId && chatId) {
isSessionIdUsingChatMessageId = true
sessionId = chatId
} else {
sessionId = nodeData.inputs?.sessionId
}
const sessionId = nodeData.inputs?.sessionId as string
const credentialData = await getCredentialData(nodeData.credential ?? '', options)
const upstashRestToken = getCredentialParam('upstashRestToken', credentialData, nodeData)
@@ -122,7 +89,6 @@ const initalizeUpstashRedis = async (nodeData: INodeData, options: ICommonObject
const memory = new BufferMemoryExtended({
memoryKey: 'chat_history',
chatHistory: redisChatMessageHistory,
isSessionIdUsingChatMessageId,
sessionId,
redisClient: client
})
@@ -131,19 +97,16 @@ const initalizeUpstashRedis = async (nodeData: INodeData, options: ICommonObject
}
interface BufferMemoryExtendedInput {
isSessionIdUsingChatMessageId: boolean
redisClient: Redis
sessionId: string
}
class BufferMemoryExtended extends FlowiseMemory implements MemoryMethods {
isSessionIdUsingChatMessageId? = false
sessionId = ''
redisClient: Redis
constructor(fields: BufferMemoryInput & BufferMemoryExtendedInput) {
super(fields)
this.isSessionIdUsingChatMessageId = fields.isSessionIdUsingChatMessageId
this.sessionId = fields.sessionId
this.redisClient = fields.redisClient
}
@@ -186,10 +149,6 @@ class BufferMemoryExtended extends FlowiseMemory implements MemoryMethods {
await this.redisClient.del(id)
await this.clear()
}
async resumeMessages(): Promise<void> {
return
}
}
module.exports = { nodeClass: UpstashRedisBackedChatMemory_Memory }