instagram_autolikes.js

var profilePage = window._sharedData.entry_data.ProfilePage;
if (!profilePage) throw new Error("откройте страницу профиля, не поста");
var user_id = profilePage[0].graphql.user.id;
var csrf_token = window._sharedData.config.csrf_token;
var url_template = 'https://www.instagram.com/graphql/query/?query_hash=42323d64886122307be10013ad2dcc44&variables=';
var getMessageData = function(after) {
	var variablesObj = {
		id: user_id,
		first: 50
	};
	if (after) variablesObj.after = after;
	var curUrl = url_template + encodeURIComponent(JSON.stringify(variablesObj));
	var getReq = new XMLHttpRequest();
	getReq.open("GET",curUrl,false);
	getReq.send(null);
	return JSON.parse(getReq.responseText);
};

var getAllPosts = function() {
	var result = [];
	var lastHash = null;
	var hasNext = true;
	do {
		var curBatch = getMessageData(lastHash).data.user.edge_owner_to_timeline_media;
		lastHash = curBatch.page_info.end_cursor;
		hasNext = curBatch.page_info.has_next_page;
		result = result.concat(curBatch.edges.map(function(n){return n.node.id}));
		console.log(result.length + ' from ' + curBatch.count + ' posts loaded');
	} while(hasNext);
	return result;
};

var likePost = function(postId) {
	var likeUrl = 'https://www.instagram.com/web/likes/' + postId + '/like/';
	var likeReq = new XMLHttpRequest();
	likeReq.open("POST",likeUrl,false);
	likeReq.setRequestHeader('X-CSRFToken', csrf_token);
	likeReq.send(null);
	if (likeReq.status != 200) {  
		throw new Error("Скрипт остановлен, чтобы, вас забанили " + likeReq.statusText);
	}  
	return new Promise(resolve => setTimeout(resolve, 2000));
};

var messageIds = getAllPosts();

for (var i = 0; i < messageIds.length; i++) {
	await likePost(messageIds[i]);
	console.log((i + 1) + ' from ' + messageIds.length + ' posts liked');
}