fix chat history

This commit is contained in:
Henry
2023-11-30 16:01:16 +00:00
parent 5a5097e997
commit 4b5f7028e3
12 changed files with 262 additions and 98 deletions
@@ -1,5 +1,5 @@
import { INode, INodeData, INodeParams, ICommonObject } from '../../../src/Interface'
import { getBaseClasses, getCredentialData, getCredentialParam } from '../../../src/utils'
import { getBaseClasses, getCredentialData, getCredentialParam, serializeChatHistory } from '../../../src/utils'
import { BufferMemory, BufferMemoryInput } from 'langchain/memory'
import { RedisChatMessageHistory, RedisChatMessageHistoryInput } from 'langchain/stores/message/ioredis'
import { mapStoredMessageToChatMessage, BaseMessage } from 'langchain/schema'
@@ -65,13 +65,23 @@ class RedisBackedChatMemory_Memory implements INode {
return await initalizeRedis(nodeData, options)
}
async clearSessionMemory(nodeData: INodeData, options: ICommonObject): Promise<void> {
const redis = await initalizeRedis(nodeData, options)
const sessionId = nodeData.inputs?.sessionId as string
const chatId = options?.chatId as string
options.logger.info(`Clearing Redis memory session ${sessionId ? sessionId : chatId}`)
await redis.clear()
options.logger.info(`Successfully cleared Redis memory session ${sessionId ? sessionId : chatId}`)
//@ts-ignore
memoryMethods = {
async clearSessionMemory(nodeData: INodeData, options: ICommonObject): Promise<void> {
const redis = await initalizeRedis(nodeData, options)
const sessionId = nodeData.inputs?.sessionId as string
const chatId = options?.chatId as string
options.logger.info(`Clearing Redis memory session ${sessionId ? sessionId : chatId}`)
await redis.clear()
options.logger.info(`Successfully cleared Redis memory session ${sessionId ? sessionId : chatId}`)
},
async getChatMessages(nodeData: INodeData, options: ICommonObject): Promise<string> {
const memoryKey = nodeData.inputs?.memoryKey as string
const redis = await initalizeRedis(nodeData, options)
const key = memoryKey ?? 'chat_history'
const memoryResult = await redis.loadMemoryVariables({})
return serializeChatHistory(memoryResult[key])
}
}
}