Chore/LC v0.3 (#3517)

* bump langchain version to 0.3, upgrades on all chat models

* update all docs loader to have documents and text output options

* fix pnpm lock file

packages/components/nodes/documentloaders/S3File/S3File.ts

@@ -1,5 +1,5 @@
 import { omit } from 'lodash'
-import { ICommonObject, INode, INodeData, INodeOptionsValue, INodeParams } from '../../../src/Interface'
+import { ICommonObject, INode, INodeData, INodeOptionsValue, INodeOutputsValue, INodeParams } from '../../../src/Interface'
 import { S3Loader } from '@langchain/community/document_loaders/web/s3'
 import {
     UnstructuredLoader,
@@ -8,7 +8,7 @@ import {
     SkipInferTableTypes,
     HiResModelName
 } from '@langchain/community/document_loaders/fs/unstructured'
-import { getCredentialData, getCredentialParam } from '../../../src/utils'
+import { getCredentialData, getCredentialParam, handleEscapeCharacters } from '../../../src/utils'
 import { S3Client, GetObjectCommand, S3ClientConfig } from '@aws-sdk/client-s3'
 import { getRegions, MODEL_TYPE } from '../../../src/modelLoader'
 import { Readable } from 'node:stream'
@@ -27,11 +27,12 @@ class S3_DocumentLoaders implements INode {
     baseClasses: string[]
     credential: INodeParams
     inputs?: INodeParams[]
+    outputs: INodeOutputsValue[]
 
     constructor() {
         this.label = 'S3'
         this.name = 'S3'
-        this.version = 3.0
+        this.version = 4.0
         this.type = 'Document'
         this.icon = 's3.svg'
         this.category = 'Document Loaders'
@@ -434,6 +435,20 @@ class S3_DocumentLoaders implements INode {
                 additionalParams: true
             }
         ]
+        this.outputs = [
+            {
+                label: 'Document',
+                name: 'document',
+                description: 'Array of document objects containing metadata and pageContent',
+                baseClasses: [...this.baseClasses, 'json']
+            },
+            {
+                label: 'Text',
+                name: 'text',
+                description: 'Concatenated string from pageContent of documents',
+                baseClasses: ['string', 'json']
+            }
+        ]
     }
 
     loadMethods = {
@@ -466,6 +481,7 @@ class S3_DocumentLoaders implements INode {
         const newAfterNChars = nodeData.inputs?.newAfterNChars as number
         const maxCharacters = nodeData.inputs?.maxCharacters as number
         const _omitMetadataKeys = nodeData.inputs?.omitMetadataKeys as string
+        const output = nodeData.outputs?.output as string
 
         let omitMetadataKeys: string[] = []
         if (_omitMetadataKeys) {
@@ -594,7 +610,15 @@ class S3_DocumentLoaders implements INode {
 
                 fsDefault.rmSync(path.dirname(filePath), { recursive: true })
 
-                return docs
+                if (output === 'document') {
+                    return docs
+                } else {
+                    let finaltext = ''
+                    for (const doc of docs) {
+                        finaltext += `${doc.pageContent}\n`
+                    }
+                    return handleEscapeCharacters(finaltext, false)
+                }
             } catch {
                 fsDefault.rmSync(path.dirname(filePath), { recursive: true })
                 throw new Error(`Failed to load file ${filePath} using unstructured loader.`)