Crecto::Repo maps the database to the database adapter, and is used to run queries on models. If connections to multiple databases is required, just create a separate Repo for each. The config block defines how the repo connects to the database.

module MyRepo
    extend Crecto::Repo
    
    config do |conf|
        conf.adapter = Crecto::Adapters::Postgres
        # or Crecto::Adapters::Mysql, Crecto::Adapters::SQLite3
        conf.hostname = "localhost"
        conf.database = "my_database"
    end
end
​
module AnotherRepo
    extend Crecto::Repo
    
    config do |conf|
        conf.adapter = Crecto::Adatperes::SQLite3
        conf.database = "./my_db.db"
    end
end

config options, all of the options from crystal-db database are implemented:

• adapter - Specify the Crecto adapter to use: Crecto::Adapters::Postgres, Crecto::Adapters::Mysql, Crecto::Adapters::SQLite3

• checkout_timeout

• database - database name

• password - database password

• username - database username

• uri - full uri to database, can include all config options (i.e. postgres://user@pass:localhost:5432/my_db?initial_pool_size=10&retry_attemps=5)

• hostname - database host name

• initial_pool_size

• max_pool_size

• retry_attempts

• retry_delay