124 lines
4.0 KiB
TypeScript
124 lines
4.0 KiB
TypeScript
import { BaseCache } from '@langchain/core/caches'
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import { ChatOpenAI, ChatOpenAIFields } 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 ChatSambanova_ChatModels 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 = 'ChatSambanova'
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this.name = 'chatSambanova'
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this.version = 1.0
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this.type = 'ChatSambanova'
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this.icon = 'sambanova.png'
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this.category = 'Chat Models'
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this.description = 'Wrapper around Sambanova Chat Endpoints'
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this.baseClasses = [this.type, ...getBaseClasses(ChatOpenAI)]
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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: ['sambanovaApi']
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}
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this.inputs = [
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{
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label: 'Cache',
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name: 'cache',
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type: 'BaseCache',
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optional: true
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},
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{
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label: 'Model',
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name: 'modelName',
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type: 'string',
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default: 'Meta-Llama-3.3-70B-Instruct',
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placeholder: 'Meta-Llama-3.3-70B-Instruct'
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},
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{
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label: 'Temperature',
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name: 'temperature',
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type: 'number',
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step: 0.1,
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default: 0.9,
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optional: true
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},
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{
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label: 'Streaming',
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name: 'streaming',
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type: 'boolean',
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default: true,
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optional: 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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default: 'htps://api.sambanova.ai/v1',
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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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}
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async init(nodeData: INodeData, _: string, options: ICommonObject): Promise<any> {
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const cache = nodeData.inputs?.cache as BaseCache
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const temperature = nodeData.inputs?.temperature as string
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const modelName = nodeData.inputs?.modelName as string
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const streaming = nodeData.inputs?.streaming as boolean
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const basePath = nodeData.inputs?.basepath 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 sambanovaApiKey = getCredentialParam('sambanovaApiKey', credentialData, nodeData)
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const obj: ChatOpenAIFields = {
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temperature: temperature ? parseFloat(temperature) : undefined,
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model: modelName,
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apiKey: sambanovaApiKey,
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openAIApiKey: sambanovaApiKey,
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streaming: streaming ?? true
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}
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if (cache) obj.cache = cache
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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 ChatSambanova'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 ChatOpenAI(obj)
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return model
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}
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}
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module.exports = { nodeClass: ChatSambanova_ChatModels }
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