How to write a simple image hosting?

Question

Network administration

Good afternoon.
I thought of writing to learn some web technology to write hosting images with minimal functionality: authorization, uploading several pieces at a time, adding tags and then searching for them, getting a link to the image.
I would also like it to be "without loading" the page, that is, ajax requests or something like that.
Tell me, please, in which direction is it worth digging and in what language is it better to implement it? I understand that there will be a lot of JS...

Answer 1

You can write ruby ​​on rails in an hour :)