128 lines
4.3 KiB
TypeScript
128 lines
4.3 KiB
TypeScript
import { ClientOptions, OpenAIEmbeddings, OpenAIEmbeddingsParams } from '@langchain/openai'
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import { ICommonObject, INode, INodeData, INodeParams } from '../../../src/Interface'
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import { getBaseClasses, getCredentialData, getCredentialParam } from '../../../src/utils'
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class OpenAIEmbeddingCustom_Embeddings implements INode {
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label: string
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name: string
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version: number
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type: string
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icon: string
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category: string
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description: 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 = 'OpenAI Embeddings Custom'
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this.name = 'openAIEmbeddingsCustom'
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this.version = 3.0
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this.type = 'OpenAIEmbeddingsCustom'
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this.icon = 'openai.svg'
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this.category = 'Embeddings'
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this.description = 'OpenAI API to generate embeddings for a given text'
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this.baseClasses = [this.type, ...getBaseClasses(OpenAIEmbeddings)]
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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: ['openAIApi']
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}
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this.inputs = [
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{
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label: 'Strip New Lines',
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name: 'stripNewLines',
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type: 'boolean',
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optional: true,
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additionalParams: true
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},
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{
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label: 'Batch Size',
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name: 'batchSize',
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type: 'number',
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optional: true,
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additionalParams: true
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},
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{
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label: 'Timeout',
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name: 'timeout',
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type: 'number',
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optional: true,
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additionalParams: true
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},
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{
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label: 'BasePath',
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name: 'basepath',
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type: 'string',
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optional: true,
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additionalParams: true
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},
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{
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label: 'BaseOptions',
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name: 'baseOptions',
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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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label: 'Model Name',
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name: 'modelName',
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type: 'string',
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optional: true
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},
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{
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label: 'Dimensions',
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name: 'dimensions',
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type: 'number',
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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, _: string, options: ICommonObject): Promise<any> {
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const stripNewLines = nodeData.inputs?.stripNewLines as boolean
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const batchSize = nodeData.inputs?.batchSize as string
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const timeout = nodeData.inputs?.timeout as string
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const basePath = nodeData.inputs?.basepath as string
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const modelName = nodeData.inputs?.modelName as string
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const dimensions = nodeData.inputs?.dimensions as string
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const baseOptions = nodeData.inputs?.baseOptions
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const credentialData = await getCredentialData(nodeData.credential ?? '', options)
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const openAIApiKey = getCredentialParam('openAIApiKey', credentialData, nodeData)
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const obj: Partial<OpenAIEmbeddingsParams> & { openAIApiKey?: string; configuration?: ClientOptions } = {
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openAIApiKey
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}
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if (stripNewLines) obj.stripNewLines = stripNewLines
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if (batchSize) obj.batchSize = parseInt(batchSize, 10)
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if (timeout) obj.timeout = parseInt(timeout, 10)
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if (modelName) obj.modelName = modelName
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if (dimensions) obj.dimensions = parseInt(dimensions, 10)
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let parsedBaseOptions: any | undefined = undefined
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if (baseOptions) {
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try {
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parsedBaseOptions = typeof baseOptions === 'object' ? baseOptions : JSON.parse(baseOptions)
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} catch (exception) {
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throw new Error("Invalid JSON in the ChatOpenAI's BaseOptions: " + exception)
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}
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}
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if (basePath || parsedBaseOptions) {
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obj.configuration = {
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baseURL: basePath,
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defaultHeaders: parsedBaseOptions
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}
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}
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const model = new OpenAIEmbeddings(obj)
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return model
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}
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}
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module.exports = { nodeClass: OpenAIEmbeddingCustom_Embeddings }
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