I'm from a startup in India called Hypto. We are i...
# serverk
Kartick Vijayakumar
10/13/2021, 5:51 PMI'm from a startup in India called Hypto. We are investing in building some infrastructure and web-services in the fintech space and was exploring gRPC and Kotlin coroutine based server for our webservices. Managed to put together a basic starter for this - https://github.com/hwslabs/grpc-kotlin-starter
At some point, we would need to generate clients across multiple programming languages. I'm thinking we should separate the proto files alone into an independent repo and include that as a dependency in the build process of various other repos (each of which is a different programming language). One of those could be the Kotlin server side impl and others would simply be the language-specific client impl.
Any thoughts? Has someone tried something like this?
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Matteo Mirk
10/15/2021, 11:32 AMHi Kartick, in Expedia where I work, we have a single proto repository for all business domains. Then we have a repository for each gRPC target language needed (currently JVM, JS and Go), which includes the proto repository as a git submodule. This way any changes to the proto files can be easily pulled in. Each of these repos serve to build a library with the generated code, specific to its target language. So the “business-domains-jvm” builds a Jar for Java/Kotlin, the “business-domains-js” a Node module, and so on.
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Kartick Vijayakumar
10/15/2021, 12:42 PMDo you have a possible sample of this repo structure open sourced by any chance?
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Matteo Mirk
10/15/2021, 3:08 PMI’m really sorry, they are private to our GH enterprise installation, they’re not open source.
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Kartick Vijayakumar
10/15/2021, 3:25 PMNo issues. Do you still use gradle to build the top level repository that includes the proto submodule? Is there a force-use or does Expedia leave it to the discretion of independent teams to use (or pull) the latest proto files?
Kartick Vijayakumar
10/15/2021, 3:34 PMI know I am asking about a much larger build-system/versioning-strategy question here. But any help here is much appreciated 🙂
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Matteo Mirk
10/15/2021, 3:35 PMWe use gradle, yes. When you build the top-level repo in CI (which produces the library), the latest changes are always pulled
Matteo Mirk
10/15/2021, 3:35 PMwhen you develop/test in local you can do whatever you want with the submodule, update or not, change branch, etc
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