Where can I find good documentation on configuring postgres for Ruby on Rails?

Question

PostgreSQL

I transferred the project from sqlite to pg in order to upload it to hiroku ... So everything works fine on hiroku, but locally I can’t launch the project anyway. PG installed. But it throws an error

PG::ConnectionBad
FATAL: Peer authentication failed for user "alex"

And he did everything according to the manuals found in Google. I've been worrying about this for a week now and nothing... Advise a link where all these nuances would be well chewed or help me figure out what I'm doing wrong...

Answer 1

This article may solve your problem with Peer authentication. But you still need to be able to impose it on your situation, on your operating system.
https://www.digitalocean.com/community/tutorials/h...
In short, by your mistake, you need to configure the correct authorization in pg_hba.conf. Usually this is md5, but I use trust on the local system. But you will still need to find this file on your computer.
https://postgrespro.ru/docs/postgrespro/9.6/auth-p...