[Question] About getting the protoc-gen-go-http and protoc-gen-go-errors plugin

[agermel]

While I used the command below:

go install github.com/go-kratos/kratos/cmd/protoc-gen-go-http@latest
it actually installed what seems to be an experimental plugin:

$ protoc-gen-go-http --version
protoc-gen-go-http 0.0.1
After checking the documentation, I noticed these seems to be no notes regarding the installation of these plugins. I then manually compiled main/cmd/protoc-gen-go-http, and it worked.

Is manually compiling the plugin from main/cmd/protoc-gen-go-http the officially recommended way to install these plugins?

[dosubot]

Hi @agermel! I'm Dosu and I’m helping the kratos team.

Manual compilation (either by running go build in the plugin directory or using the Makefile) is currently the recommended and supported way to install protoc-gen-go-http and protoc-gen-go-errors for Kratos. This is because the plugins are versioned within the main Kratos monorepo, and their releases are tied to the root repository's tags—not to individual plugin tags. As a result, using go install may fetch an outdated or experimental version (like 0.0.1), since Go expects a different module/tag structure for binary installation from a monorepo setup.

The Makefile in the repository includes targets for building and installing these plugins, which matches the intended workflow. There is no explicit documentation for installing these plugins with go install, and the manual build process is consistent with the repository's structure and supported by the maintainers. For reference, see the Makefile install target and related discussion about versioning and installation here.

To reply, just mention @dosu.

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[hxzll]

You should use command go install github.com/go-kratos/kratos/cmd/protoc-gen-go-http/v2@latest to install the latest protoc-gen-go-http binary. You can also use command kratos upgrade to install and upgrade all related binaries.

The latest protoc-gen-go-http go module path is github.com/go-kratos/kratos/cmd/protoc-gen-go-http/v2@latest instead of github.com/go-kratos/kratos/cmd/protoc-gen-go-http@latest, so you were installing a legacy binary.