add OpenAPI Toolkit

packages/components/nodes/tools/OpenApiToolkit/OpenApiToolkit.ts

@@ -0,0 +1,69 @@
+import { INode, INodeData, INodeParams } from '../../../src/Interface'
+import { OpenApiToolkit } from 'langchain/agents'
+import { JsonSpec, JsonObject } from 'langchain/tools'
+import { BaseLanguageModel } from 'langchain/base_language'
+import { load } from 'js-yaml'
+
+class OpenApiToolkit_Tools implements INode {
+    label: string
+    name: string
+    description: string
+    type: string
+    icon: string
+    category: string
+    baseClasses: string[]
+    inputs: INodeParams[]
+
+    constructor() {
+        this.label = 'OpenApi Toolkit'
+        this.name = 'openApiToolkit'
+        this.type = 'OpenApiToolkit'
+        this.icon = 'openai.png'
+        this.category = 'Tools'
+        this.description = 'Load OpenAPI specification'
+        this.inputs = [
+            {
+                label: 'OpenAI Api Key',
+                name: 'openAIApiKey',
+                type: 'password'
+            },
+            {
+                label: 'Language Model',
+                name: 'model',
+                type: 'BaseLanguageModel'
+            },
+            {
+                label: 'YAML File',
+                name: 'yamlFile',
+                type: 'file',
+                fileType: '.yaml'
+            }
+        ]
+        this.baseClasses = [this.type, 'Tool']
+    }
+
+    async init(nodeData: INodeData): Promise<any> {
+        const openAIApiKey = nodeData.inputs?.openAIApiKey as string
+        const model = nodeData.inputs?.model as BaseLanguageModel
+        const yamlFileBase64 = nodeData.inputs?.yamlFile as string
+
+        const splitDataURI = yamlFileBase64.split(',')
+        splitDataURI.pop()
+        const bf = Buffer.from(splitDataURI.pop() || '', 'base64')
+        const utf8String = bf.toString('utf-8')
+        const data = load(utf8String) as JsonObject
+        if (!data) {
+            throw new Error('Failed to load OpenAPI spec')
+        }
+
+        const headers = {
+            'Content-Type': 'application/json',
+            Authorization: `Bearer ${openAIApiKey}`
+        }
+        const toolkit = new OpenApiToolkit(new JsonSpec(data), model, headers)
+
+        return toolkit.tools
+    }
+}
+
+module.exports = { nodeClass: OpenApiToolkit_Tools }

packages/components/package.json

@@ -20,6 +20,7 @@
         "@huggingface/inference": "1",
         "@pinecone-database/pinecone": "^0.0.12",
         "@supabase/supabase-js": "^2.21.0",
+        "@types/js-yaml": "^4.0.5",
         "axios": "^0.27.2",
         "cheerio": "^1.0.0-rc.12",
         "chromadb": "^1.4.2",