How to access application configuration. Best practices/patterns

[jacob...@nexkey.com]

I want to be able to access configuration variables within my controller classes in scala play 2.5. The use case is to be able to configure a cryptographic signing key that the server will use. What is the proper way to wire this together? I get from reading around that I am supposed to use Guice to inject the required configuration into my controller class, but I haven't found a fully wired example. Within the Guice module, how would I declare the correct implementation of the configuration class? 

I guess it would be something like this in the configure method of a class overriding AbstractModule 

bind(classOf[Configuration]).to XXX

What's the XXX? And am I going about this correctly in the first place? 

Thanks,

Jacob

[Greg Methvin]

Why are you trying to bind Configuration? It's already bound by Play: https://github.com/playframework/playframework/blob/master/framework/src/play/src/main/scala/play/api/inject/BuiltinModule.scala#L40

All the Guice Play examples like https://github.com/playframework/play-scala-starter-example are already wired up. Take any injected class and add a Configuration to the constructor and you should be good.

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Greg Methvin

Tech Lead - Play Framework

Lightbend, Inc.