How to properly uninstall an application from the application code on MacOs?

Question

macOS

Hello!
Please tell me when developing an application on MacOs:
1) In which folder to put the application's local database, log file, etc. ?
2) What is the true way to uninstall an application from the application code itself? So far, it only comes to mind to run a bash script that will remove the application folder from Applications.

Answer 1

1. to the standard ones: ~/Library/Application Support/AppName, ~/Library/Logs/AppName
2. why? the user himself is able to drop the application to the trash.