How to communicate front folder with backend folder

I've developed an application with vue-cli. So, my application has the front-end folder and back-end folder. Locally I can get data from my API and show it in my vuejs pages but how can I get the same result in a shared hosting? I'm using hostinger as host and there's the following structure:

public_html [ index.html static/ api/ [ All/Laravel/Files/Are/Here] ]