I program with JavaScript, Node JS, html, css.
Building a web app I'm trying to figure out, how to use back4app.com as database. Starting with the examples, I've created a connection.
Now I'm wondering how secure this solution is? Following the back4app example "YOUR_APP_ID" and "YOUR_JS_KEY" are visible in the code of the index.html.
How can I guarantee security for all user data? I would like to save the sign-in data and progress of the users.