Compile Error for Missing Bindable Service Implicit

[nsadeh]

Description:

I am unable to compile a simple gRPC server running on ZIO gRPC because it complains of missing implicit arguments even though I think I imported them. Here is what I did:

1. I followed the directions for plugins/dependencies on the website.
2. For my service, I generated a ZManaged with the type signature ZManaged[Any, Nothing, ZioMyService.ZMyService[ZEnv, Any]]
3. I added the service to services using addManaged
4. At this point I see no compiler highlighting in IntelliJ for any kind of missing arguments
5. When I run sbt compile I get the following error:

could not find implicit value for parameter bs: scalapb.zio_grpc.ZBindableService[ZioMyService.ZMyService[zio.ZEnv,Any]]

NOTE: I imported

import ZioMyService.ZMyService.genericBindable\n import scalapb.zio_grpc.CanBind.canBindAny

initially when there was a highlight. The import resolved the highlight but the compiler still cannot compile (or run) my server.

This uses versions:

• sbt-protoc 1.0.2
• zio-grpc-codegen 0.5.0
• Scala 2.13.6
• SBT 1.5.5
• JDK Azul Zulu 11

[nsadeh]

Update: I was able to get this to compile by using a ZIO instead of ZManaged but I still think this warrants looking at.

[thesamet]

Thanks for reporting! Looks like something that should be fixed. Could you provide a minimal example of this error through a PR that adds a unit test under the e2e directory?

[nsadeh]

I would like to - I think I can get to it on Wednesday.

[nsadeh]

Although since this is a compile issue rather than a runtime issue, I don't know if the unit test is needed? Should I just create a ServerMain example?

[thesamet]

Yes, we use tests also for compile-time, to make sure the APIs work as intended, and implicits can be found in the scenarios we want to support. This also helps preventing regressions for the use cases under test.

[thesamet]

However, feel free to provide a reproducible example in any way that is convenient for you and I'll take a look and move it around as needed.

[nsadeh]

Hey @thesamet I am still tracking this just got a bit behind :)

[tuleism]

@nsadeh does #301 fix it for you?