iOS Photo Sharing on Instagram using Titanium

if (!Ti.Network.online) {
	alert("No Internet Connection");
	return;
} else {

	var dir = (!Ti.Android || !Ti.Filesystem.isExternalStoragePresent()) ? Ti.Filesystem.applicationDataDirectory : Ti.Filesystem.externalStorageDirectory;
	var localStorage = Ti.Filesystem.getFile(dir, "IMAGES_FOLDER");
	(!localStorage.exists()) && localStorage.createDirectory();
	var imageFilePath = Ti.Filesystem.getFile(localStorage.resolve(), 'image.png');

	var xhr = Ti.Network.createHTTPClient({
		onload : function(e) {

			if (this.status == 200) {
				imageFilePath.write(this.responseData);

				if (!Ti.Android) {

					var tigram = require('com.kosso.tigram');
					if (tigram.isInstalled) {
						var imageView = Ti.UI.createImageView({
							height : 500,
							width : 500,
							image : imageFilePath,
						});
						tigram.openPhoto({
							media : imageView.toImage()
						});
					} else {
						alert("Instagram app is not installed in your device!");
					}

				}
			} else {
				alert("Error occurred while sharing on Instagram");
			}
		},
		onerror : function(e) {
			alert("Unable to proceed due to slow Internet Connection");
		}
	});

	xhr.setTimeout(10 * 1000);
	xhr.open('GET', photoURL);
	xhr.send();

}