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→OpenURL parsing and storing
A bit confusingly, Umlaut's own Request (which represents a parsed OpenURL request) should not be confused with the Rails ActionController::Request class which represents the complete details of an 'raw' HTTP request.
So the first thing the resolve action does is pass the incoming HTTP request details to the Umlaut Request#new_request method, which will ''''either'''' create a new Request, or recover an already created Request from the db. The point of this recovery is that if the user presses the browser reload button, the app should be connected with the same already created request--allowing in either case return a Request matching the same already generated responses to be used, among other thingsOpenURL.
====Request caching====
The point of this recovery is that if the user presses the browser reload button, the app should be connected with the same already created request--allowing the same already generated responses to be used, among other things. Cache matching is based on: Must be from the same session, must be from the same originating IP address, must have the same OpenURL parameters (same OpenURL parameters measured by a serialized version (Request#serialized_co_params) of recognized openurl paramters stored in the 'params' attribute.
Alternately, if the request ID is passed in (in query var "umlaut.request_id"), that is used instead of context object matching. Umlaut often passes requestID internally, to make sure the same request is recovered. If request_id matches, sessions is not required to match--this is intentional to recover the request even if browser isn't returning cookies, thus not connecting to same session.
===Building the service Collection: Institutions and Services===