Jot

A light wrapper around the JWT gem.

Setup

Configure the gem:

Jot.configure do |config|
  config.algorithm = "HS256"
  config.secret = # Something long and complex, such as a value generated by SecureRandom.hex(32)
end

You may wish to also specify the expiration time for tokens as well. The default is 1 hour, but it can be overridden:

  config.expiration_time_in_seconds = 1500 # 25 minutes

Usage

Encode a payload:

Jot.encode({ user_id: 1 }) # => "eyJhbGciOiJIUz..."

Decode a payload:

Jot.decode("eyJhbGciOiJIUz...") # => { "user_id" => 1 }

Decode a payload and get the header information too:

Jot.original_decode("eyJhbGciOiJIUz") # => [{ "user_id" => 1 }, { "alg" => "HS256" }]

Exceptions raised for invalid / expired tokens will be the same as those raised by the JWT gem.