Is it safe to use Single Page Applications?

Question

JavaScript

Good afternoon!
Do you think it is safe to use the concept of SPA for enterprise applications with authentication?
Personally, it confuses me that the SPA is fully loaded only once (and then the API is accessed) and in the JS code you have to immediately lay down the entire logic of the application. Those. if necessary, even an unauthorized user can find out the logic of the application, the structure of API calls, etc. Of course, he will not receive the data itself, but the structure of calls is already worth a lot.

Answer 1

If you don't want to load everything, do a lazy load

Answer 2

The best way to write secure and reliable applications

Answer 3

Of course, he will not receive the data itself, but the structure of calls is already worth a lot.

In terms of access security - it costs nothing!
You can’t get into the Google database with a browser?!)
SPA- do it calmly, but authorization through Rest-API - you need to do it normally!

Answer 4

The structure of requests is worthless if authorization works at least a little on the back
Yes, absolutely safe