Android : Nodejs to Android Rar (image file) Send

I want to send image Node.js server to Android Clients.

I am using a REST Service between Node.js and Android Devices.

I can send image using node.js module 'fs' and receive Android device.

It's ok but i have over 200 images and each image's size between 1KB and 2KB. It' s very small images. So i dont want to send one by one. Its too slow so i am curious about if i ".rar" all image file (about 2MB), can i send one time and show images in android devices?

Or are there any way to send one time without ".rar" ?