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import { INode, INodeData, INodeParams } from '../../../src/Interface'
import { TextSplitter } from 'langchain/text_splitter'
import { NotionDBLoader, NotionDBLoaderParams } from 'langchain/document_loaders/web/notiondb'
class NotionDB_DocumentLoaders implements INode {
label: string
name: string
description: string
type: string
icon: string
category: string
baseClasses: string[]
inputs: INodeParams[]
constructor() {
this.label = 'Notion Database'
this.name = 'notionDB'
this.type = 'Document'
this.icon = 'notion.png'
this.category = 'Document Loaders'
this.description = 'Load data from Notion Database ID'
this.baseClasses = [this.type]
this.inputs = [
{
label: 'Text Splitter',
name: 'textSplitter',
type: 'TextSplitter',
optional: true
},
{
label: 'Notion Database Id',
name: 'databaseId',
type: 'string',
description:
'If your URL looks like - https://www.notion.so/<long_hash_1>?v=<long_hash_2>, then <long_hash_1> is the database ID'
},
{
label: 'Notion Integration Token',
name: 'notionIntegrationToken',
type: 'password',
description:
'You can find integration token <a target="_blank" href="https://developers.notion.com/docs/create-a-notion-integration#step-1-create-an-integration">here</a>'
},
{
label: 'Page Size Limit',
name: 'pageSizeLimit',
type: 'number',
default: 10
},
{
label: 'Metadata',
name: 'metadata',
type: 'json',
optional: true,
additionalParams: true
}
]
}
async init(nodeData: INodeData): Promise<any> {
const textSplitter = nodeData.inputs?.textSplitter as TextSplitter
const databaseId = nodeData.inputs?.databaseId as string
const notionIntegrationToken = nodeData.inputs?.notionIntegrationToken as string
const pageSizeLimit = nodeData.inputs?.pageSizeLimit as string
const metadata = nodeData.inputs?.metadata
const obj: NotionDBLoaderParams = {
pageSizeLimit: pageSizeLimit ? parseInt(pageSizeLimit, 10) : 10,
databaseId,
notionIntegrationToken
}
const loader = new NotionDBLoader(obj)
let docs = []
if (textSplitter) {
docs = await loader.loadAndSplit(textSplitter)
} else {
docs = await loader.load()
}
if (metadata) {
const parsedMetadata = typeof metadata === 'object' ? metadata : JSON.parse(metadata)
let finaldocs = []
for (const doc of docs) {
const newdoc = {
...doc,
metadata: {
...doc.metadata,
...parsedMetadata
}
}
finaldocs.push(newdoc)
}
return finaldocs
}
return docs
}
}
module.exports = { nodeClass: NotionDB_DocumentLoaders }
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