```ruby
require File.expand_path('../boot', __FILE__)

require 'rails'
require 'active_model/railtie'
require 'active_job/railtie'
require 'action_controller/railtie'
require 'action_view/railtie'
require 'rails/test_unit/railtie'

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

module BetterDoctor
  class Application < Rails::Application
    # Settings in config/environments/* take precedence over those specified here.
    # Application configuration should go into files in config/initializers
    # -- all .rb files in that directory are automatically loaded.

    # Config Grape paths
    config.paths.add File.join('app', 'api'), glob: File.join('**', '*.rb')
    config.autoload_paths += Dir[Rails.root.join('app', 'api', '*')]

    # Only loads a smaller set of middleware suitable for API only apps.
    # Middleware like session, flash, cookies can be added back manually.
    # Skip views, helpers and assets when generating a new resource.
    config.api_only = true

    # Logging
    config.logger  = Logging.logger[self]
    RestClient.log = Logging.logger['RestClient']
  end
end
```

Implement HTTP API proxy request caching
user
```ruby
require File.expand_path('../boot', __FILE__)

require 'rails'
require 'active_model/railtie'
require 'active_job/railtie'
require 'action_controller/railtie'
require 'action_view/railtie'
require 'rails/test_unit/railtie'
require 'restclient/components'

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

module BetterDoctor
  class Application < Rails::Application
    # Settings in config/environments/* take precedence over those specified here.
    # Application configuration should go into files in config/initializers
    # -- all .rb files in that directory are automatically loaded.

    # Config Grape paths
    config.paths.add File.join('app', 'api'), glob: File.join('**', '*.rb')
    config.autoload_paths += Dir[Rails.root.join('app', 'api', '*')]

    # Only loads a smaller set of middleware suitable for API only apps.
    # Middleware like session, flash, cookies can be added back manually.
    # Skip views, helpers and assets when generating a new resource.
    config.api_only = true

    # Logging
    config.logger  = Logging.logger[self]
    RestClient.log = Logging.logger['RestClient']

    # Enable HTTP cache
    RestClient.enable Rack::Cache,
      :verbose => true,
      :default_ttl => 60 * 30,
      :private_headers => ['Authorization', 'Cookie', 'X-Api-Key']
  end
end
```
assistant