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In this Ruby quickstart we will learn how to:
  • Retrieve database credentials
  • Install the libSQL ActiveRecord gem
  • Connect to a local or remote Turso database
  • Define and create models
  • Perform basic CRUD operations
  • Execute raw SQL queries
  • Work with migrations
1

Retrieve database credentials

You will need an existing database to continue. If you don’t have one, create one.Get the database URL:
turso db show --url <database-name>
Get the database authentication token:
turso db tokens create <database-name>
Assign credentials to the environment variables inside .env.
TURSO_DATABASE_URL=
TURSO_AUTH_TOKEN=
2

Install

In your Ruby project, add the following gems to your Gemfile:
gem 'libsql_activerecord'
gem 'activerecord'
Then run:
bundle install
3

Connect

Create a Ruby file (e.g., database.rb) to set up the database connection:
require 'libsql_activerecord'
require 'active_record'

ActiveRecord::Base.establish_connection(
  adapter: 'libsql',
  url: ENV['TURSO_DATABASE_URL'],
  auth_token: ENV['TURSO_AUTH_TOKEN'],
  path: 'path/to/local/replica.db'
)

require 'libsql_activerecord'
require 'active_record'

ActiveRecord::Base.establish_connection(
  adapter: 'libsql',
  path: 'path/to/local.db'
)

require 'libsql_activerecord'
require 'active_record'

ActiveRecord::Base.establish_connection(
  adapter: 'libsql',
  url: ENV['TURSO_DATABASE_URL'],
  auth_token: ENV['TURSO_AUTH_TOKEN']
)

require 'libsql_activerecord'
require 'active_record'

ActiveRecord::Base.establish_connection(adapter: 'libsql')
4

Define models

Create model files for your database tables. For example, product.rb:
class Product < ActiveRecord::Base
  validates :name, presence: true
end
5

Create and execute a migration

Create a migration file (e.g., 001_create_products.rb):
class CreateProducts < ActiveRecord::Migration[8.0]
  def change
    create_table :products do |t|
      t.string :name
      t.text :description
      t.timestamps
    end
  end
end
Execute the migration:
require_relative 'database'
require_relative '001_create_products'

CreateProducts.migrate(:up)
6

Execute

Perform some basic CRUD operations:
product = Product.create(name: 'Book', description: 'A book about books')
7

Work with associations

Define associations in your models:
class Author < ActiveRecord::Base
  has_many :books
end

class Book < ActiveRecord::Base
  belongs_to :author
end
Use associations in your code:
author = Author.create(name: 'Jane Doe')
book = author.books.create(title: 'My First Book')

puts author.books.count # => 1
puts book.author.name # => "Jane Doe"
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