How to get media from instagram via XHR

instaGet

function getMedia(instaData, mediaCount, callback) {
	var profileData =  instaData.entry_data.ProfilePage[0];
	var userID = profileData.user.id;
	var totalMedia = profileData.user.media.count;
	var mediaCount = mediaCount > totalMedia ? totalMedia : mediaCount;
	var csrf_token = instaData.config.csrf_token;
	var xhrBody = "ig_user(" + userID + ") { media.after(0, " + mediaCount + ") {nodes {display_src }}}";

	var xhr = new XMLHttpRequest();
	xhr.open("POST", '/query/', true)
	xhr.setRequestHeader("X-CSRFToken", csrf_token);
	xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

	xhr.onreadystatechange = function() {
	  if (this.readyState != 4) return;
	  callback(this.responseText);
	}

	xhr.send("q=" + encodeURIComponent(xhrBody));
}


// I want 20 instagram posts from this user
getMedia(window._sharedData, 20, function(data){
	console.log(JSON.parse(data));
});