How to set database permissions for a user in postgresql?

Question

PostgreSQL

There is a base.
There is a postgresql superuser with all rights.
How to set rights to the database for a new user.
create via CREATE USER newuser WITH PASSWORD 'password';
give rights GRANT ALL PRIVILEGES ON DATABASE base1 TO newuser;
and it doesn't work....
I have several schemas in the database: public, root, base
Is there a command to give all rights to only one database in potgtgresql? (SELECT, UPDATE, DELETE, INSERT)
(no explicit schema selection)

Answer 1

https://postgrespro.ru/docs/postgresql/9.6/sql-grant