Feature/lang graph (#2319)

* add langgraph

* datasource: initial commit

* datasource: datasource details and chunks

* datasource: Document Store Node

* more changes

* Document Store - Base functionality

* Document Store Loader Component

* Document Store Loader Component

* before merging the modularity PR

* after merging the modularity PR

* preview mode

* initial draft PR

* fixes

* minor updates and  fixes

* preview with loader and splitter

* preview with credential

* show stored chunks

* preview update...

* edit config

* save, preview and other changes

* save, preview and other changes

* save, process and other changes

* save, process and other changes

* alpha1 - for internal testing

* rerouting urls

* bug fix on new leader create

* pagination support for chunks

* delete document store

* Update pnpm-lock.yaml

* doc store card view

* Update store files to use updated storage functions, Document Store Table View and other changes

* ui changes

* add expanded chunk dialog, improve ui

* change throw Error to InternalError

* Bug Fixes and removal of subFolder, adding of view chunks for store

* lint fixes

* merge changes

* DocumentStoreStatus component

* ui changes for doc store

* add remove metadata key field, add custom document loader

* add chatflows used doc store chips

* add types/interfaces to DocumentStore Services

* document loader list dialog title bar color change

* update interfaces

* Whereused Chatflow Name and Added chunkNo to retain order of created chunks.

* use typeorm order chunkNo, ui changes

* update tabler icons react

* cleanup agents

* add pysandbox tool

* add abort functionality, loading next agent

* add empty view svg

* update chatflow tool with chatId

* rename to agentflows

* update worker for prompt input values

* update dashboard to agentflows, agentcanvas

* fix marketplace use template

* add agentflow templates

* resolve merge conflict

* update baseURL

---------

Co-authored-by: vinodkiran <vinodkiran@usa.net>
Co-authored-by: Vinod Paidimarry <vinodkiran@outlook.in>

packages/server/src/utils/index.ts

@@ -1,6 +1,7 @@
 import path from 'path'
 import fs from 'fs'
 import logger from './logger'
+import { Server } from 'socket.io'
 import {
     IComponentCredentials,
     IComponentNodes,
@@ -267,9 +268,10 @@ export const getEndingNodes = (
                 endingNodeData &&
                 endingNodeData.category !== 'Chains' &&
                 endingNodeData.category !== 'Agents' &&
-                endingNodeData.category !== 'Engine'
+                endingNodeData.category !== 'Engine' &&
+                endingNodeData.category !== 'Multi Agents'
             ) {
-                error = new InternalFlowiseError(StatusCodes.INTERNAL_SERVER_ERROR, `Ending node must be either a Chain or Agent`)
+                error = new InternalFlowiseError(StatusCodes.INTERNAL_SERVER_ERROR, `Ending node must be either a Chain or Agent or Engine`)
                 continue
             }
         }
@@ -443,7 +445,10 @@ export const buildFlow = async (
     cachePool?: CachePool,
     isUpsert?: boolean,
     stopNodeId?: string,
-    uploads?: IFileUpload[]
+    uploads?: IFileUpload[],
+    baseURL?: string,
+    socketIO?: Server,
+    socketIOClientId?: string
 ) => {
     const flowNodes = cloneDeep(reactFlowNodes)
 
@@ -496,7 +501,10 @@ export const buildFlow = async (
                     databaseEntities,
                     cachePool,
                     dynamicVariables,
-                    uploads
+                    uploads,
+                    baseURL,
+                    socketIO,
+                    socketIOClientId
                 })
                 if (indexResult) upsertHistory['result'] = indexResult
                 logger.debug(`[server]: Finished upserting ${reactFlowNode.data.label} (${reactFlowNode.data.id})`)
@@ -520,7 +528,10 @@ export const buildFlow = async (
                     cachePool,
                     isUpsert,
                     dynamicVariables,
-                    uploads
+                    uploads,
+                    baseURL,
+                    socketIO,
+                    socketIOClientId
                 })
 
                 // Save dynamic variables
@@ -1048,7 +1059,6 @@ export const findAvailableConfigs = (reactFlowNodes: IReactFlowNode[], component
             }
         }
     }
-
     return configs
 }