Need suggestions for scalable Rest api

Hi guys,

I am working on a hobby project for some time now and for this I need a rest api, which I have already developed by using node js / Express js. The api is responsible for writiing the received client data to a local file and then call an executable Java Application which generates a new file based on the client data file and a Template file. And at the end, this newly generated file will be send back to the client. For now I have this running on a digital ocean droplet. But I want to make it more scalable. Because I have not much experience with cloud subjects I Wanted to ask you for some suggestions. How can i make my Rest api more scalable. I hope that you can help me. Thanks

submitted by /u/freshbanks3131
[link] [comments]