Class: Garner::Middleware::Cache::Bust Abstract

Inherits:
Base
  • Object
show all
Defined in:
lib/garner/middleware/cache/bust.rb

Overview

This class is abstract.

Add the necessary Cache-Control and Expires headers to bust client cache.

Instance Attribute Summary

Attributes inherited from Base

#app, #env, #options

Instance Method Summary collapse

Methods inherited from Base

#before, #call, #call!, #default_options, #initialize, #request, #response

Constructor Details

This class inherits a constructor from Garner::Middleware::Base

Instance Method Details

#after ⇒ Object 



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# File 'lib/garner/middleware/cache/bust.rb', line 7

def after
  # private: ok to store API results in a private cache
  # max-age: don't reuse the cached result without checking with the server (server might say 304 Not Modified)
  # must-revalidate: prevent gateways from returning a response if the API server is not reachable
  @app_response[1]["Cache-Control"] = "private, max-age=0, must-revalidate"
  # don't reuse the cached result without checking with the server
  @app_response[1]["Expires"] = "Fri, 01 Jan 1990 00:00:00 GMT"
  @app_response
end