How to generate the config / secrets.yml file in Rails?

The secret is no longer generated in rails 5 now other files are used, if your rails is greater than 5 then you will need to use the command EDITOR="vim" bin/rails credentials:edit the value of your EDITOR can also be nano depends on which one you have installed EDITOR="nano" bin/rails credentials:edit .

If your rails is less than 4 then here is an example of your secrets:

development:
  secret_key_base: super_long_secret_key_for_development
  active_merchant_login: 896667
  active_merchant_password: supersecretpassword888

test:
  secret_key_base: super_long_secret_key_for_test
  active_merchant_login: 896667
 active_merchant_password: supersecretpassword888

production:
  secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>
  active_merchant_login: <%= ENV["AM_LOGIN"] %>
  active_merchant_password: <%= ENV["AM_PASSWORD"] %>

I took it from this league

Additionally, in the production environment you must create the environment variable SECRET_KEY_BASE and assign it a key generated by the rails secret command.

C: > rails secret 175501ea97a18f4f153b0f8df3c10a3ce97f09871bb5eb88c5ae9998b1a089c06bff6f88eb57bc94a8ff1d635ff0fa7a58df108e7e7d10c664f9234862a13714

• How credentials are used in Rails 5.2 Spotify API example:

  • To consume the Spotify data it is necessary to register the App that we developed, you can do it in the following link Spotify
  • When using Ruby on Rails 5.2, we have to add the access data of the app that we registered, to the file "../config/credentials.yml.enc" that means the "Client ID" and the "Client Secret"
  • To modify the file "../config/credentials.yml.enc", in the terminal (or command line) we must be located in the project directory and execute the command EDITOR=nano rails credentials:edit , then add the data of the «Client ID» and the «Client Secret»

  • It should look similar to the following

    development:
      spotify:
       access_key_id: abc123
       secret_access_key: abc123  
    
    production:
      spotify:
        access_key_id: abc123_
        secret_access_key: abc123_  
    

  • "../ config / master.key" must be added to ".gitignore" as the decryption key.

This answer is extracted from another question, the complete example with the API of spotyfy is in this link