108 lines
4.0 KiB
TypeScript
108 lines
4.0 KiB
TypeScript
import { WatsonxEmbeddings, WatsonxInputEmbeddings } from '@langchain/community/embeddings/ibm'
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import { WatsonxAuth } from '@langchain/community/dist/types/ibm'
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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 IBMWatsonx_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 = 'IBM Watsonx Embeddings'
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this.name = 'ibmEmbedding'
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this.version = 1.0
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this.type = 'WatsonxEmbeddings'
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this.icon = 'ibm.png'
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this.category = 'Embeddings'
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this.description = 'Generate embeddings for a given text using open source model on IBM Watsonx'
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this.baseClasses = [this.type, ...getBaseClasses(WatsonxEmbeddings)]
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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: ['ibmWatsonx']
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}
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this.inputs = [
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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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default: 'ibm/slate-30m-english-rtrvr'
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},
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{
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label: 'Truncate Input Tokens',
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name: 'truncateInputTokens',
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type: 'number',
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description: 'Truncate the input tokens.',
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step: 1,
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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: 'Max Retries',
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name: 'maxRetries',
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type: 'number',
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description: 'The maximum number of retries.',
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step: 1,
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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: 'Max Concurrency',
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name: 'maxConcurrency',
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type: 'number',
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description: 'The maximum number of concurrencies.',
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step: 1,
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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 modelName = nodeData.inputs?.modelName as string
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const truncateInputTokens = nodeData.inputs?.truncateInputTokens as string
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const maxRetries = nodeData.inputs?.maxRetries as string
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const maxConcurrency = nodeData.inputs?.maxConcurrency as string
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const credentialData = await getCredentialData(nodeData.credential ?? '', options)
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const version = getCredentialParam('version', credentialData, nodeData)
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const serviceUrl = getCredentialParam('serviceUrl', credentialData, nodeData)
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const projectId = getCredentialParam('projectId', credentialData, nodeData)
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const watsonxAIAuthType = getCredentialParam('watsonxAIAuthType', credentialData, nodeData)
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const watsonxAIApikey = getCredentialParam('watsonxAIApikey', credentialData, nodeData)
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const watsonxAIBearerToken = getCredentialParam('watsonxAIBearerToken', credentialData, nodeData)
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const auth = {
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version,
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serviceUrl,
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projectId,
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watsonxAIAuthType,
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watsonxAIApikey,
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watsonxAIBearerToken
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}
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const obj: WatsonxInputEmbeddings & WatsonxAuth = {
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...auth,
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model: modelName
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}
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if (truncateInputTokens) obj.truncateInputTokens = parseInt(truncateInputTokens, 10)
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if (maxRetries) obj.maxRetries = parseInt(maxRetries, 10)
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if (maxConcurrency) obj.maxConcurrency = parseInt(maxConcurrency, 10)
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const model = new WatsonxEmbeddings(obj)
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return model
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}
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}
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module.exports = { nodeClass: IBMWatsonx_Embeddings }
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