89 lines
3.1 KiB
TypeScript
89 lines
3.1 KiB
TypeScript
import { load } from 'js-yaml'
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import { BaseLanguageModel } from '@langchain/core/language_models/base'
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import { OpenApiToolkit } from 'langchain/agents'
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import { JsonSpec, JsonObject } from './core'
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import { ICommonObject, INode, INodeData, INodeParams } from '../../../src/Interface'
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import { getCredentialData, getCredentialParam, getFileFromStorage } from '../../../src'
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class OpenAPIToolkit_Tools 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 = 'OpenAPI Toolkit'
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this.name = 'openAPIToolkit'
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this.version = 1.0
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this.type = 'OpenAPIToolkit'
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this.icon = 'openapi.svg'
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this.category = 'Tools'
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this.description = 'Load OpenAPI specification'
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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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description: 'Only needed if the YAML OpenAPI Spec requires authentication',
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optional: true,
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credentialNames: ['openAPIAuth']
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}
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this.inputs = [
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{
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label: 'Language Model',
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name: 'model',
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type: 'BaseLanguageModel'
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},
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{
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label: 'YAML File',
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name: 'yamlFile',
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type: 'file',
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fileType: '.yaml'
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}
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]
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this.baseClasses = [this.type, 'Tool']
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}
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async init(nodeData: INodeData, _: string, options: ICommonObject): Promise<any> {
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const model = nodeData.inputs?.model as BaseLanguageModel
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const yamlFileBase64 = nodeData.inputs?.yamlFile as string
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const credentialData = await getCredentialData(nodeData.credential ?? '', options)
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const openAPIToken = getCredentialParam('openAPIToken', credentialData, nodeData)
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let data: JsonObject
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if (yamlFileBase64.startsWith('FILE-STORAGE::')) {
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const file = yamlFileBase64.replace('FILE-STORAGE::', '')
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const chatflowid = options.chatflowid
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const fileData = await getFileFromStorage(file, chatflowid)
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const utf8String = fileData.toString('utf-8')
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data = load(utf8String) as JsonObject
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} else {
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const splitDataURI = yamlFileBase64.split(',')
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splitDataURI.pop()
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const bf = Buffer.from(splitDataURI.pop() || '', 'base64')
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const utf8String = bf.toString('utf-8')
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data = load(utf8String) as JsonObject
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}
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if (!data) {
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throw new Error('Failed to load OpenAPI spec')
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}
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const headers: ICommonObject = {
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'Content-Type': 'application/json'
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}
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if (openAPIToken) headers.Authorization = `Bearer ${openAPIToken}`
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const toolkit = new OpenApiToolkit(new JsonSpec(data), model, headers)
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return toolkit.tools
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}
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}
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module.exports = { nodeClass: OpenAPIToolkit_Tools }
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