Play Modules with Routes

[Marius Soutier]

Hi,

I have written a Play module that is included in the main app as a dependency. My module also provides some custom routes. This however seems to confuse the dependency injection mechanism, resulting in a `com.google.inject.ProvisionException`.

In development mode, it fails injecting the application's controllers:

ProvisionException: Unable to provision, see the following errors: 1) No implementation for services.Counter was bound. while locating services.Counter for parameter 0 at controllers.CountController.<init>(CountController.scala:17) while locating controllers.CountController for parameter 2 at router.Routes.<init>(Routes.scala:43) while locating router.Routes while locating play.api.inject.RoutesProvider

In production mode, it cannot bind the module's named actors.

When I rename the module's module.routes to routes, it works, but the module's routes override the application's routes.

I couldn't find any hint to this in the documentation, it only refers to SBT submodules, not to dependencies.

Thanks for any hint,

- Marius

[Will Sargent]

Hi Marius,

I assume you're referring to the note about there only being one routes file throughout the system at

https://www.playframework.com/documentation/2.5.x/SBTSubProjects#Splitting-the-route-file

The submodules are essentially dependencies here, as you have a project.dependsOn(submodule) relationship internally.  

SIRD routing is far more flexible than the generated router, so I would go that route if at all possible.  It's difficult to say more without looking at the code.

--

Will Sargent

Engineer, Lightbend, Inc.

will.s...@lightbend.com

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[Will Sargent]

Also see https://github.com/playframework/playframework/issues/4586

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Will Sargent

Engineer, Lightbend, Inc.

will.s...@lightbend.com

[Will Sargent]

And https://github.com/playframework/playframework/issues/6107

[Marius Soutier]

Hi Will,

yes, I have essentially split the routes files, just as described on the page. The only difference from what's described there is that my module is in a separate project and included as a dependency.

When I just start the module as if it were a standalone Play app, everything works fine. 

Is `dependsOn()` really equivalent to an Ivy dependency? I thought there were some differences classpath-wise.

I guess SIRD routing is not an option as the users of my module will by default use injected routing.

- Marius

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[Marius Soutier]

Here's an example:

https://github.com/mariussoutier/playframework-module-seed

On 1. Feb 2017, at 18:43, Will Sargent <will.s...@lightbend.com> wrote:

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