Merge pull request #284 from wangerzi/feature/SupportZepMemoryAndAutoSummary

feature/SupportZepMemoryAndAutoSummary

packages/server/src/ChildProcess.ts

@@ -23,7 +23,7 @@ export class ChildProcess {
         await sendToParentProcess('start', '_')
 
         // Create a Queue and add our initial node in it
-        const { endingNodeData, chatflow, incomingInput, componentNodes } = messageValue
+        const { endingNodeData, chatflow, chatId, incomingInput, componentNodes } = messageValue
 
         let nodeToExecuteData: INodeData
         let addToChatFlowPool: any = {}
@@ -83,6 +83,7 @@ export class ChildProcess {
                 depthQueue,
                 componentNodes,
                 incomingInput.question,
+                chatId,
                 incomingInput?.overrideConfig
             )
 

packages/server/src/Interface.ts

@@ -143,6 +143,7 @@ export interface IDatabaseExport {
 
 export interface IRunChatflowMessageValue {
     chatflow: IChatFlow
+    chatId: string
     incomingInput: IncomingInput
     componentNodes: IComponentNodes
     endingNodeData?: INodeData

packages/server/src/index.ts

@@ -432,7 +432,7 @@ export class App {
      * @param {IncomingInput} incomingInput
      * @param {INodeData} endingNodeData
      */
-    async startChildProcess(chatflow: ChatFlow, incomingInput: IncomingInput, endingNodeData?: INodeData) {
+    async startChildProcess(chatflow: ChatFlow, chatId: string, incomingInput: IncomingInput, endingNodeData?: INodeData) {
         try {
             const controller = new AbortController()
             const { signal } = controller
@@ -444,6 +444,7 @@ export class App {
 
             const value = {
                 chatflow,
+                chatId,
                 incomingInput,
                 componentNodes: cloneDeep(this.nodesPool.componentNodes),
                 endingNodeData
@@ -506,6 +507,9 @@ export class App {
             })
             if (!chatflow) return res.status(404).send(`Chatflow ${chatflowid} not found`)
 
+            const chatId = await getChatId(chatflow.id)
+            if (!chatId) return res.status(500).send(`Chatflow ${chatflowid} first message not found`)
+
             if (!isInternal) {
                 await this.validateKey(req, res, chatflow)
             }
@@ -557,7 +561,7 @@ export class App {
                 if (isRebuildNeeded()) {
                     nodeToExecuteData = this.chatflowPool.activeChatflows[chatflowid].endingNodeData
                     try {
-                        const result = await this.startChildProcess(chatflow, incomingInput, nodeToExecuteData)
+                        const result = await this.startChildProcess(chatflow, chatId, incomingInput, nodeToExecuteData)
 
                         return res.json(result)
                     } catch (error) {
@@ -565,7 +569,7 @@ export class App {
                     }
                 } else {
                     try {
-                        const result = await this.startChildProcess(chatflow, incomingInput)
+                        const result = await this.startChildProcess(chatflow, chatId, incomingInput)
                         return res.json(result)
                     } catch (error) {
                         return res.status(500).send(error)
@@ -618,6 +622,7 @@ export class App {
                         depthQueue,
                         this.nodesPool.componentNodes,
                         incomingInput.question,
+                        chatId,
                         incomingInput?.overrideConfig
                     )
 
@@ -661,6 +666,23 @@ export class App {
     }
 }
 
+/**
+ * Get first chat message id
+ * @param {string} chatflowid
+ * @returns {string}
+ */
+export async function getChatId(chatflowid: string) {
+    // first chatmessage id as the unique chat id
+    const firstChatMessage = await getDataSource()
+        .getRepository(ChatMessage)
+        .createQueryBuilder('cm')
+        .select('cm.id')
+        .where('chatflowid = :chatflowid', { chatflowid })
+        .orderBy('cm.createdDate', 'ASC')
+        .getOne()
+    return firstChatMessage ? firstChatMessage.id : ''
+}
+
 let serverApp: App | undefined
 
 export async function start(): Promise<void> {

packages/server/src/utils/index.ts

@@ -182,6 +182,7 @@ export const buildLangchain = async (
     depthQueue: IDepthQueue,
     componentNodes: IComponentNodes,
     question: string,
+    chatId: string,
     overrideConfig?: ICommonObject
 ) => {
     const flowNodes = cloneDeep(reactFlowNodes)
@@ -214,7 +215,7 @@ export const buildLangchain = async (
             if (overrideConfig) flowNodeData = replaceInputsWithConfig(flowNodeData, overrideConfig)
             const reactFlowNodeData: INodeData = resolveVariables(flowNodeData, flowNodes, question)
 
-            flowNodes[nodeIndex].data.instance = await newNodeInstance.init(reactFlowNodeData, question)
+            flowNodes[nodeIndex].data.instance = await newNodeInstance.init(reactFlowNodeData, question, { chatId })
         } catch (e: any) {
             console.error(e)
             throw new Error(e)