Quick scraper for Instagram profiles.

instagram-scraper.js

const getInstagramHeaders = async () => {
    const options = {
        method: 'GET',
        credentials: 'same-origin',
    }
    const response = await fetch('https://www.instagram.com/a.thousand.apologies/', options)
    const parser = new DOMParser()
    const html = await response.text()
    const document = parser.parseFromString(html, 'text/html')
    return {
        ...Object.fromEntries(response.headers.entries()),
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:104.0) 20100101 Firefox/103.0',
        'Accept': '*/*',
        'Accept-Language': 'en,en-US;q=0.3',
        'X-Csrftoken': document.body.innerHTML.split('csrf_token')[1].split('\\"')[2],
        'X-IG-App-ID': document.body.innerHTML.split('X-IG-App-ID')[1].split(',')[0].replaceAll('"', '').replace(':', ''),
        'X-ASBD-ID': '198337',
        'X-IG-WWW-Claim': '0',
        'Origin': 'https://www.instagram.com',
        'DNT': '1',
        'Alt-Used': 'i.instagram.com',
        'Connection': 'keep-alive',
        'Referer': 'https://www.instagram.com/',
        'Sec-Fetch-Dest': 'empty',
        'Sec-Fetch-Mode': 'cors',
        'Sec-Fetch-Site': 'same-site',
        'Sec-GPC': '1',
    }
}

// 
const getInstagramProfile = async (username) => {
    const fetchedHeaders = await getInstagramHeaders()
    const headers = new Headers(fetchedHeaders);
    const response = await fetch(`https://www.instagram.com/api/v1/users/web_profile_info/?username=${username}`, {
        method: 'GET',
        headers
    })
    return await response.json()
}

const getInstagramPhotoIDs = async (username) => {
    const profile = await getInstagramProfile(username)
    const edges = profile.data.user.edge_owner_to_timeline_media.edges
    const shortCodes = edges.map(edge => edge.node.shortcode)
    return shortCodes
}