nested_credentials_access

🧩 Organize and Access Nested Credentials

For complex apps, store structured secrets using nested YAML in your credentials file. This keeps related values together and improves readability. You can then use dig or symbol keys to retrieve deeply nested data without polluting your environment variables.

# config/credentials/production.yml.enc
mailer:
  smtp:
    address: smtp.example.com
    port: 587
    user_name: user@example.com
    password: SUPER_SECRET

# config/initializers/smtp.rb
smtp_cfg = Rails.application.credentials.dig(:mailer, :smtp)
ActionMailer::Base.smtp_settings = {
  address: smtp_cfg[:address],
  port: smtp_cfg[:port],
  user_name: smtp_cfg[:user_name],
  password: smtp_cfg[:password],
  authentication: :login
}