Session

Wrapper around Rack::Session middleware to help work with sessions in your plugged operations.

It depends on the Rack::Session middleware, which is shipped by rack.

It adds the following methods to WebPipe::Conn:

#fetch_session(key), #fetch_session(key, default) or #fetch_session(key) { default }. Returns what is stored under given session key. A default value can be given as a second argument or a block.
#add_session(key, value). Adds given key/value pair to the session.
#delete_session(key). Deletes given key from the session.
#clear_session. Deletes everything from the session.

require 'web_pipe'
require 'rack/session'

WebPipe.load_extensions(:session)

class MyApp
  include WebPipe
  
  use Rack::Session::Cookie, secret: 'top_secret'
  
  plug(:add_to_session) do |conn|
    conn.add_session('foo', 'bar')
  end
  plug(:fetch_from_session) do |conn|
    conn.add(
      :foo, conn.fetch_session('foo')
    )
  end
end