API to send JSON file to Box

I am working on a project and I have a workflow related question:

1. I want to send a JSON file to IBM box via FTPS protocol and I am aware that I should create an API to accomplish this

2. I also need the API to have code for automation that sends the file every night.

I am a database developer and I am looking for some sample/ready for use API that already does this. Any help?