notion's api

dump.js

const { Client } = require("@notionhq/client")
const fs = require('fs')
const path = require( 'path' )
const parse = require('url').parse
const request = require( 'request' )

// Initializing a client
const download = (uri, filename, callback) => {
    request.head(uri, (err, res, body) => {
        request(uri).pipe(fs.createWriteStream(filename)).on('close', callback);
    })
};

const notion = new Client({ auth: process.env.NOTION_TOKEN })
;( async () => {
const databaseId = '91de1f46495540e78a6e28bfee758925'
const myPage = await notion.databases.query({
  database_id: databaseId,
  filter: {
    property: "Primary",
    multi_select: {
        contains: 'Tracker'
    }
  }
})

let rows = myPage.results.map( async (page) => {
    let row = []
    const items = await notion.pages.properties.retrieve({ page_id: page.id, property_id: 'title'})
    const blockList = await notion.blocks.children.list({block_id: page.id})
    if ( items.results.length > 0 ) {
        row[0] = items.results[0].title.text.content
    }
    if ( blockList.results.length > 0 ) {
        let images = blockList.results.filter( (block) => {
            return block.type == 'image'
        } ).map( ( block, i ) => {
            let url = block.image.file.url
            let parsed = parse(url)
            let components = parsed.pathname.split('/')
            let folder = path.join('.', databaseId, components[components.length - 2])
            let filename = components[components.length - 1]
            let destination = path.join(folder, filename)
            if (!fs.existsSync(folder)){
                fs.mkdirSync(folder, { recursive: true });
            }
            row[i + 1] = destination
            download( url, destination, (err) => {
                if (err) console.log(err)
            } )
        })
    }
    return row
})



Promise.all(rows).then( (results) => {
    fs.writeFile('demo.json', JSON.stringify(results.map( ( row ) => {
        let images = []
        for (let i = 1; i < row.length; i ++ ) { images.push( row[ i ] ) }
        return {
            title: row[ 0 ],
            images: images
        }
    } )), 'utf-8', (err) => {
        console.log(err)
    })
})

}) ();