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PostgreSQL

Here are some instructions for setting up PostgreSQL for use with esmBot.

1. Install PostgreSQL.

Debian/Ubuntu

sudo apt-get install postgresql postgresql-client

Alpine

doas apk add postgresql

Arch/Manjaro

sudo pacman -S postgresql

2. (Optional) Tune PostgreSQL.

PGTune is a useful tool for generating configuration files for your PostgreSQL database. It is highly recommended that you generate a config using this tool as it can increase stability and performance.

3. Create the bot user and database.

When you install PostgreSQL, it'll create a new user on your system that acts as the "superuser" of the database. You'll need to run Postgres commands as this user; however, you can run a command as that user without switching to it by using sudo.

First, you'll need to create a user that the bot can interact with as well as the database itself:

sudo su - postgres -c "createuser esmbot"
sudo su - postgres -c "createdb esmbot"

Then, launch the PostgreSQL shell for the next few commands:

sudo -u postgres psql

If you want to give the user a password, you can do so like this:

ALTER USER esmbot WITH PASSWORD 'new_password';

Once you're inside the shell, you'll need to make sure the bot owns the database and has permissions:

ALTER DATABASE esmbot OWNER TO esmbot;

The database is now accessible by the bot, but it still doesn't know how to add/get data from it. To fix that, you'll need to add some tables. Luckily, the bot comes with a script to automate this:

POSTGRES_USER=esmbot POSTGRES_DB=esmbot utils/psqlinit.sh

You're done!

Troubleshooting

If you get an error like error: permission denied for table counts when attempting to run the bot, try running these commands in the PostgreSQL shell:

\c esmbot
GRANT ALL PRIVILEGES ON guilds TO esmbot;
GRANT ALL PRIVILEGES ON counts TO esmbot;
GRANT ALL PRIVILEGES ON tags TO esmbot;
\q

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