94 lines
3.2 KiB
TypeScript
94 lines
3.2 KiB
TypeScript
import { ICommonObject, INode, INodeData, INodeParams } from '../../../src/Interface'
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import { UnstructuredLoader, UnstructuredLoaderOptions } from 'langchain/document_loaders/fs/unstructured'
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import { getCredentialData, getCredentialParam } from '../../../src/utils'
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class UnstructuredFile_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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credential: INodeParams
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inputs: INodeParams[]
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constructor() {
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this.label = 'Unstructured File Loader'
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this.name = 'unstructuredFileLoader'
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this.version = 1.0
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this.type = 'Document'
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this.icon = 'unstructured.png'
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this.category = 'Document Loaders'
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this.description = 'Use Unstructured.io to load data from a file path'
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this.baseClasses = [this.type]
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this.credential = {
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label: 'Connect Credential',
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name: 'credential',
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type: 'credential',
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credentialNames: ['unstructuredApi'],
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optional: true
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}
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this.inputs = [
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{
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label: 'File Path',
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name: 'filePath',
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type: 'string',
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placeholder: ''
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},
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{
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label: 'Unstructured API URL',
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name: 'unstructuredAPIUrl',
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description:
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'Unstructured API URL. Read <a target="_blank" href="https://unstructured-io.github.io/unstructured/introduction.html#getting-started">more</a> on how to get started',
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type: 'string',
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default: 'http://localhost:8000/general/v0/general'
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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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/*TODO Add Filter Options*/
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]
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}
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async init(nodeData: INodeData, _: string, options: ICommonObject): Promise<any> {
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const filePath = nodeData.inputs?.filePath as string
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const unstructuredAPIUrl = nodeData.inputs?.unstructuredAPIUrl as string
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const metadata = nodeData.inputs?.metadata
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const obj: UnstructuredLoaderOptions = { apiUrl: unstructuredAPIUrl }
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const credentialData = await getCredentialData(nodeData.credential ?? '', options)
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const unstructuredAPIKey = getCredentialParam('unstructuredAPIKey', credentialData, nodeData)
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if (unstructuredAPIKey) obj.apiKey = unstructuredAPIKey
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const loader = new UnstructuredLoader(filePath, obj)
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const docs = await loader.load()
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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: UnstructuredFile_DocumentLoaders }
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