igjs.js

function getPosts(user) {
  return new Promise((resolve, reject) => {
    const xhr = new XMLHttpRequest();
    const url = 'https://allorigins.me/get?url=' + encodeURIComponent('https://instagram.com/' + user + '/')

    xhr.open("GET", url);
    xhr.onload = () => resolve(formatPosts(xhr.responseText, user));
    xhr.onerror = () => reject(xhr.statusText);
    xhr.send();
  });
}
function formatPosts(rawPosts, username) {
  let result = [];
  const captions = [];
  rawPosts = JSON.parse(rawPosts)
  rawPosts = JSON.parse(rawPosts.contents.split('window._sharedData = ')[1].split('\;\<\/script>')[0]).entry_data.ProfilePage[0].graphql.user.edge_owner_to_timeline_media.edges
  rawPosts.forEach(function (item) {
    result.push({
      raw: item.node,
      image: item.node.display_url,
      dimensions: item.node.dimensions,
      likes: item.node.edge_liked_by.count,
      caption: item.node.edge_media_to_caption.edges[0].node.text,
      comments: item.node.edge_media_to_comment.count,
      video: item.node.is_video,
      code: item.node.shortcode,
      url: 'https://instagram.com/p/' + item.node.shortcode,
      timestamp: item.node.taken_at_timestamp,
      thumbnails: {
        150: item.node.thumbnail_resources[0].src,
        240: item.node.thumbnail_resources[1].src,
        320: item.node.thumbnail_resources[2].src,
        480: item.node.thumbnail_resources[3].src,
        640: item.node.thumbnail_resources[4].src
      }
    })
  })
  return result;
}