135 lines
4.3 KiB
TypeScript
135 lines
4.3 KiB
TypeScript
import { ChatOpenAI, ChatOpenAIFields } from '@langchain/openai'
|
|
import { BaseCache } from '@langchain/core/caches'
|
|
import { ICommonObject, INode, INodeData, INodeParams } from '../../../src/Interface'
|
|
import { getBaseClasses, getCredentialData, getCredentialParam } from '../../../src/utils'
|
|
|
|
class ChatLocalAI_ChatModels implements INode {
|
|
label: string
|
|
name: string
|
|
version: number
|
|
type: string
|
|
icon: string
|
|
category: string
|
|
description: string
|
|
baseClasses: string[]
|
|
credential: INodeParams
|
|
inputs: INodeParams[]
|
|
|
|
constructor() {
|
|
this.label = 'ChatLocalAI'
|
|
this.name = 'chatLocalAI'
|
|
this.version = 3.0
|
|
this.type = 'ChatLocalAI'
|
|
this.icon = 'localai.png'
|
|
this.category = 'Chat Models'
|
|
this.description = 'Use local LLMs like llama.cpp, gpt4all using LocalAI'
|
|
this.baseClasses = [this.type, 'BaseChatModel', ...getBaseClasses(ChatOpenAI)]
|
|
this.credential = {
|
|
label: 'Connect Credential',
|
|
name: 'credential',
|
|
type: 'credential',
|
|
credentialNames: ['localAIApi'],
|
|
optional: true
|
|
}
|
|
this.inputs = [
|
|
{
|
|
label: 'Cache',
|
|
name: 'cache',
|
|
type: 'BaseCache',
|
|
optional: true
|
|
},
|
|
{
|
|
label: 'Base Path',
|
|
name: 'basePath',
|
|
type: 'string',
|
|
placeholder: 'http://localhost:8080/v1'
|
|
},
|
|
{
|
|
label: 'Model Name',
|
|
name: 'modelName',
|
|
type: 'string',
|
|
placeholder: 'gpt4all-lora-quantized.bin'
|
|
},
|
|
{
|
|
label: 'Temperature',
|
|
name: 'temperature',
|
|
type: 'number',
|
|
step: 0.1,
|
|
default: 0.9,
|
|
optional: true
|
|
},
|
|
{
|
|
label: 'Streaming',
|
|
name: 'streaming',
|
|
type: 'boolean',
|
|
default: true,
|
|
optional: true,
|
|
additionalParams: true
|
|
},
|
|
{
|
|
label: 'Max Tokens',
|
|
name: 'maxTokens',
|
|
type: 'number',
|
|
step: 1,
|
|
optional: true,
|
|
additionalParams: true
|
|
},
|
|
{
|
|
label: 'Top Probability',
|
|
name: 'topP',
|
|
type: 'number',
|
|
step: 0.1,
|
|
optional: true,
|
|
additionalParams: true
|
|
},
|
|
{
|
|
label: 'Timeout',
|
|
name: 'timeout',
|
|
type: 'number',
|
|
step: 1,
|
|
optional: true,
|
|
additionalParams: true
|
|
}
|
|
]
|
|
}
|
|
|
|
async init(nodeData: INodeData, _: string, options: ICommonObject): Promise<any> {
|
|
const temperature = nodeData.inputs?.temperature as string
|
|
const modelName = nodeData.inputs?.modelName as string
|
|
const maxTokens = nodeData.inputs?.maxTokens as string
|
|
const topP = nodeData.inputs?.topP as string
|
|
const timeout = nodeData.inputs?.timeout as string
|
|
const basePath = nodeData.inputs?.basePath as string
|
|
const streaming = nodeData.inputs?.streaming as boolean
|
|
|
|
const credentialData = await getCredentialData(nodeData.credential ?? '', options)
|
|
const localAIApiKey = getCredentialParam('localAIApiKey', credentialData, nodeData)
|
|
|
|
const cache = nodeData.inputs?.cache as BaseCache
|
|
|
|
const obj: ChatOpenAIFields = {
|
|
temperature: parseFloat(temperature),
|
|
modelName,
|
|
openAIApiKey: 'sk-',
|
|
apiKey: 'sk-',
|
|
streaming: streaming ?? true
|
|
}
|
|
|
|
if (maxTokens) obj.maxTokens = parseInt(maxTokens, 10)
|
|
if (topP) obj.topP = parseFloat(topP)
|
|
if (timeout) obj.timeout = parseInt(timeout, 10)
|
|
if (cache) obj.cache = cache
|
|
if (localAIApiKey) {
|
|
obj.openAIApiKey = localAIApiKey
|
|
obj.apiKey = localAIApiKey
|
|
}
|
|
if (basePath) obj.configuration = { baseURL: basePath }
|
|
|
|
const model = new ChatOpenAI(obj)
|
|
|
|
return model
|
|
}
|
|
}
|
|
|
|
module.exports = { nodeClass: ChatLocalAI_ChatModels }
|