What is the right architecture for restapi on nodejs?

Question

JavaScript

I am slowly migrating from php to nodejs using typescript.
I read a lot of information from Google, but I would also like to see here how the restapi architecture is being built.
Namely, more questions arise.
1) How to create and connect correctly configs, for example, to connect and work with the database
2) Is there an analog that is similar to namespace/use , autoloader.
3) Yes, and the architecture itself, I would be glad for a good example from github / bitbucket where both the connection to the database and different configs are already used. Yes, and everything is built so that it would be possible to study this matter by example

Answer 1

Search boilerplate + naming framework
https://github.com/juliandavidmr/awesome-nestjs
https://github.com/topics/express-boilerplate