Merge pull request FlowiseAI#34 from FlowiseAI/feature/NotionLoader

add Notion loader

packages/components/nodes/documentloaders/Notion/Notion.ts

@@ -0,0 +1,56 @@
+import { INode, INodeData, INodeParams } from '../../../src/Interface'
+import { TextSplitter } from 'langchain/text_splitter'
+import { NotionLoader } from 'langchain/document_loaders/fs/notion'
+
+class Notion_DocumentLoaders implements INode {
+    label: string
+    name: string
+    description: string
+    type: string
+    icon: string
+    category: string
+    baseClasses: string[]
+    inputs: INodeParams[]
+
+    constructor() {
+        this.label = 'Notion Folder'
+        this.name = 'notionFolder'
+        this.type = 'Document'
+        this.icon = 'notion.png'
+        this.category = 'Document Loaders'
+        this.description = `Load data from Notion folder`
+        this.baseClasses = [this.type]
+        this.inputs = [
+            {
+                label: 'Notion Folder',
+                name: 'notionFolder',
+                type: 'string',
+                description: 'Get folder path',
+                placeholder: 'Paste folder path'
+            },
+            {
+                label: 'Text Splitter',
+                name: 'textSplitter',
+                type: 'TextSplitter',
+                optional: true
+            }
+        ]
+    }
+
+    async init(nodeData: INodeData): Promise<any> {
+        const textSplitter = nodeData.inputs?.textSplitter as TextSplitter
+        const notionFolder = nodeData.inputs?.notionFolder as string
+
+        const loader = new NotionLoader(notionFolder)
+
+        if (textSplitter) {
+            const docs = await loader.loadAndSplit(textSplitter)
+            return docs
+        } else {
+            const docs = await loader.load()
+            return docs
+        }
+    }
+}
+
+module.exports = { nodeClass: Notion_DocumentLoaders }