funzt.component.config

A minimalist configuration framework for component systems of Stuart Sierra's component lib.

This is mainly a design pattern/best practice how to do EDN based configuration for component systems accompanyied by utility functionality.

Usage

Add the library [org.funzt/component.config "0.1.1"] to your project dependencies.

Require the namespace funzt.component.config

Inside your source code, have a map with component constructors. Each constructor must accept a map {:config <config>} and return a component.

(def key->ctor
  {:db map->Database
   :server (config/wrap-using map->Server [:db :global-config])
   :email-agent (config/wrap-using map->EmailAgent [:server :global-config])
   :global-config :config})

Wherever you store the config, e. g. in a file, have a EDN configuration map.

(def config-map
  {:db {:connection-uri "datomic:mem://test-db"
        :schema :foo}
   :server {:port 8080}
   :global-config {:dev-mode? true}
   :setup/disabled #{:email-agent}})

Then simply create a component system using config/setup

(component/start-system (config/setup key->ctor config-map))

License

Copyright © 2016 Leon Grapenthin & funzt.jetzt UG (haftungsbeschränkt)

Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.