Is it possible to generate both Akka and ZIO grpcs at the same time?

[omidb]

I have a single project that contains all the protos and I want to generate both Akka and ZIO grpc codes:

    Compile / akkaGrpcGeneratedLanguages := Seq(AkkaGrpc.Scala, AkkaGrpc.Java),
    akkaGrpcCodeGeneratorSettings := akkaGrpcCodeGeneratorSettings.value.filterNot(_ == "flat_package"),
    akkaGrpcCodeGeneratorSettings += "server_power_apis",
    akkaGrpcCodeGeneratorSettings += "java_conversions",
    Compile / PB.targets := Seq(
      scalapb.gen(grpc = true, javaConversions = true) -> (Compile / sourceManaged).value,
      scalapb.zio_grpc.ZioCodeGenerator -> (Compile / sourceManaged).value,
      PB.gens.java -> (Compile / sourceManaged).value,
    ),
    Compile / PB.protoSources := Seq(
      (ThisBuild / baseDirectory).value / "protos" / "src" / "main" / "protobuf" / "mystuff",

The plugins are not generating the Akka codes anymore. What's the workaround?

[thesamet]

Try changing to Compile / PB.targets ++= to prevent overriding Akka grpc putting.

On Mon, Aug 14, 2023, 11:57 AM Omid Bakhshandeh @.***> wrote:

I have a single project that contains all the protos and I want to generate both Akka and ZIO grpc codes:

Compile / akkaGrpcGeneratedLanguages := Seq(AkkaGrpc.Scala, AkkaGrpc.Java),
akkaGrpcCodeGeneratorSettings := akkaGrpcCodeGeneratorSettings.value.filterNot(_ == "flat_package"),
akkaGrpcCodeGeneratorSettings += "server_power_apis",
akkaGrpcCodeGeneratorSettings += "java_conversions",
Compile / PB.targets := Seq(
  scalapb.gen(grpc = true, javaConversions = true) -> (Compile / sourceManaged).value,
  scalapb.zio_grpc.ZioCodeGenerator -> (Compile / sourceManaged).value,
  PB.gens.java -> (Compile / sourceManaged).value,
),
Compile / PB.protoSources := Seq(
  (ThisBuild / baseDirectory).value / "protos" / "src" / "main" / "protobuf" / "mystuff",

The plugins are not generating the Akka codes anymore. What's the workaround?

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[omidb]

@thesamet

xxxx/build.sbt:87: error: No Append.Values[Seq[protocbridge.Target], Seq[(Object, java.io.File)]] found, so Seq[(Object, java.io.File)] cannot be appended to Seq[protocbridge.Target]
    Compile / PB.targets ++= Seq(

[omidb]

Adding type parameters seems solve the issue but creates different issues:

++= Seq[Target](

Now we have duplications

X is already defined as case class X

[thesamet]

Can you try removing the scalapb.gen line? Sounds like the case classes are generated twice.

On Mon, Aug 14, 2023 at 12:33 PM Omid Bakhshandeh @.***> wrote:

Adding type parameters seems solve the issue but creates different issues:

++= Seq[Target](

Now we have duplications

X is already defined as case class X

— Reply to this email directly, view it on GitHub https://github.com/scalapb/zio-grpc/issues/541#issuecomment-1677942836, or unsubscribe https://github.com/notifications/unsubscribe-auth/AACLBLPMHQ5EPKGLDMVDXM3XVJ4PPANCNFSM6AAAAAA3QC5G2Q . You are receiving this because you were mentioned.Message ID: @.***>

-- -Nadav

[omidb]

If I remove that then ZIO gRPC will be unhappy:

ZioXService.scala:317:105: object XServiceGrpc is not a member of package com.Y.X_service
[error]           }(scalapb.zio_grpc.ClientCallContext(com.Y.X_sServiceGrpc.METHOD_Z, io.grpc.CallOptions.DEFAULT, metadata))

[thesamet]

Got it. Can you prepare a minimal repo on github reproducing this problem and post it here?

On Mon, Aug 14, 2023 at 12:49 PM Omid Bakhshandeh @.***> wrote:

If I remove that then ZIO gRPC will be unhappy:

ZioXService.scala:317:105: object XServiceGrpc is not a member of package com.Y.X_service [error] }(scalapb.zio_grpc.ClientCallContext(com.Y.X_sServiceGrpc.METHOD_Z, io.grpc.CallOptions.DEFAULT, metadata))

— Reply to this email directly, view it on GitHub https://github.com/scalapb/zio-grpc/issues/541#issuecomment-1677963788, or unsubscribe https://github.com/notifications/unsubscribe-auth/AACLBLINNRRHK2XSRRY2JW3XVJ6L5ANCNFSM6AAAAAA3QC5G2Q . You are receiving this because you were mentioned.Message ID: @.***>

-- -Nadav

[omidb]

@thesamet https://github.com/omidb/testgrpc

[thesamet]

Thanks for posting. Can you ensure the example in the repo is minimal - there are a lot of dependencies there that may or may not be part of the problem - please leave only the dependencies necessary to demonstrate the problem. Also, it looks like the project directory is missing.

On Mon, Aug 14, 2023 at 1:41 PM Omid Bakhshandeh @.***> wrote:

@thesamet https://github.com/thesamet https://github.com/omidb/testgrpc

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-- -Nadav

[omidb]

@thesamet oops missed that. Cleaned it, it just have the Akka dependencies. let me know if you need any other changes

[thesamet]

It looks like the Akka plugin doesn't invoke scalapb.gen with the grpc option so the method descriptors needed by zio-grpc are not there. This can be fixed by adding the following settings to the protos project in build.sbt:

akkaGrpcCodeGeneratorSettings += "grpc",

[omidb]

@thesamet thanks, it solves it.