ID sets up a basic framework for implementing an id based sessioning service. Cookies sent to the client for maintaining sessions will only contain an id reference. Only #get_session and #set_session are required to be overwritten.
All parameters are optional.
:key determines the name of the cookie, by default it is ‘rack.session’
:path, :domain, :expire_after, :secure, and :httponly set the related cookie options as by Rack::Response#add_cookie
:defer will not set a cookie in the response.
:renew (implementation dependent) will prompt the generation of a new session id, and migration of data to be referenced at the new id. If :defer is set, it will be overridden and the cookie will be set.
:sidbits sets the number of bits in length that a generated session id will be.
These options can be set on a per request basis, at the location of env. Additionally the id of the session can be found within the options hash at the key :id. It is highly not recommended to change its value.
Is Rack::Utils::Context compatible.
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