HasSecureToken provides an easy way to generate uniques random tokens for any model in ruby on rails. SecureRandom::base58 is used to generate the 24-character unique tokens, so collisions are highly unlikely.
Note If you're worried about possible collissions, there's a way to generate a race condition in the database in the same way that validates_uniqueness_of can. You're encouraged to add an unique index in the database to deal with this even more unlikely scenario.
Add this line to your application's Gemfile:
gem 'has_secure_token'
And then run:
$ bundle
Or install it yourself as:
$ gem install has_secure_token
The first step is to generate a migration in order to add the token key field.
rails g migration AddTokenToUsers token:string
=>
invoke active_record
create db/migrate/20150424010931_add_token_to_users.rbThen run rake db:migrate in order to update users table in the database. The next step is to add has_secure_token
to the model:
# Schema: User(token:string, auth_token:string)
class User < ActiveRecord::Base
has_secure_token
end
user = User.new
user.save
user.token # => "pX27zsMN2ViQKta1bGfLmVJE"
user.regenerate_token # => trueTo use a custom column to store the token key field you can specify the column_name option. See example above (e.g: auth_token):
# Schema: User(token:string, auth_token:string)
class User < ActiveRecord::Base
has_secure_token :auth_token
end
user = User.new
user.save
user.auth_token # => "pX27zsMN2ViQKta1bGfLmVJE"
user.regenerate_auth_token # => trueRunning
$ rake testShould return
5 runs, 9 assertions, 0 failures, 0 errors, 0 skips- Fork it ( https://github.com/robertomiranda/has_secure_token/fork )
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create a new Pull Request
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