128 lines
5.0 KiB
TypeScript
128 lines
5.0 KiB
TypeScript
import { INode, INodeData, INodeParams } from '../../../src/Interface'
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import { TextSplitter } from 'langchain/text_splitter'
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import { TextLoader } from 'langchain/document_loaders/fs/text'
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import { DirectoryLoader } from 'langchain/document_loaders/fs/directory'
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import { JSONLoader } from 'langchain/document_loaders/fs/json'
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import { CSVLoader } from 'langchain/document_loaders/fs/csv'
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import { PDFLoader } from 'langchain/document_loaders/fs/pdf'
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import { DocxLoader } from 'langchain/document_loaders/fs/docx'
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class Folder_DocumentLoaders implements INode {
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label: string
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name: string
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version: number
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description: string
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type: string
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icon: string
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category: string
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baseClasses: string[]
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inputs: INodeParams[]
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constructor() {
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this.label = 'Folder with Files'
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this.name = 'folderFiles'
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this.version = 1.0
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this.type = 'Document'
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this.icon = 'folder.svg'
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this.category = 'Document Loaders'
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this.description = `Load data from folder with multiple files`
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this.baseClasses = [this.type]
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this.inputs = [
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{
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label: 'Folder Path',
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name: 'folderPath',
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type: 'string',
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placeholder: ''
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},
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{
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label: 'Text Splitter',
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name: 'textSplitter',
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type: 'TextSplitter',
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optional: true
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},
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{
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label: 'Metadata',
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name: 'metadata',
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type: 'json',
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optional: true,
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additionalParams: true
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}
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]
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}
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async init(nodeData: INodeData): Promise<any> {
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const textSplitter = nodeData.inputs?.textSplitter as TextSplitter
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const folderPath = nodeData.inputs?.folderPath as string
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const metadata = nodeData.inputs?.metadata
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const loader = new DirectoryLoader(folderPath, {
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'.json': (path) => new JSONLoader(path),
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'.txt': (path) => new TextLoader(path),
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'.csv': (path) => new CSVLoader(path),
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'.docx': (path) => new DocxLoader(path),
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// @ts-ignore
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'.pdf': (path) => new PDFLoader(path, { pdfjs: () => import('pdf-parse/lib/pdf.js/v1.10.100/build/pdf.js') }),
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'.aspx': (path) => new TextLoader(path),
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'.asp': (path) => new TextLoader(path),
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'.cpp': (path) => new TextLoader(path), // C++
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'.c': (path) => new TextLoader(path),
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'.cs': (path) => new TextLoader(path),
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'.css': (path) => new TextLoader(path),
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'.go': (path) => new TextLoader(path), // Go
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'.h': (path) => new TextLoader(path), // C++ Header files
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'.java': (path) => new TextLoader(path), // Java
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'.js': (path) => new TextLoader(path), // JavaScript
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'.less': (path) => new TextLoader(path), // Less files
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'.ts': (path) => new TextLoader(path), // TypeScript
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'.php': (path) => new TextLoader(path), // PHP
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'.proto': (path) => new TextLoader(path), // Protocol Buffers
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'.python': (path) => new TextLoader(path), // Python
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'.py': (path) => new TextLoader(path), // Python
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'.rst': (path) => new TextLoader(path), // reStructuredText
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'.ruby': (path) => new TextLoader(path), // Ruby
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'.rb': (path) => new TextLoader(path), // Ruby
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'.rs': (path) => new TextLoader(path), // Rust
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'.scala': (path) => new TextLoader(path), // Scala
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'.sc': (path) => new TextLoader(path), // Scala
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'.scss': (path) => new TextLoader(path), // Sass
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'.sol': (path) => new TextLoader(path), // Solidity
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'.sql': (path) => new TextLoader(path), //SQL
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'.swift': (path) => new TextLoader(path), // Swift
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'.markdown': (path) => new TextLoader(path), // Markdown
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'.md': (path) => new TextLoader(path), // Markdown
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'.tex': (path) => new TextLoader(path), // LaTeX
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'.ltx': (path) => new TextLoader(path), // LaTeX
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'.html': (path) => new TextLoader(path), // HTML
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'.vb': (path) => new TextLoader(path), // Visual Basic
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'.xml': (path) => new TextLoader(path) // XML
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})
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let docs = []
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if (textSplitter) {
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docs = await loader.loadAndSplit(textSplitter)
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} else {
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docs = await loader.load()
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}
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if (metadata) {
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const parsedMetadata = typeof metadata === 'object' ? metadata : JSON.parse(metadata)
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let finaldocs = []
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for (const doc of docs) {
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const newdoc = {
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...doc,
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metadata: {
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...doc.metadata,
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...parsedMetadata
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}
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}
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finaldocs.push(newdoc)
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}
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return finaldocs
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}
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return docs
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}
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}
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module.exports = { nodeClass: Folder_DocumentLoaders }
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