Support tags in service annotations

[kkolur]

It seems that the service option in OpenAPI configuration file is not working, or at least I am unable to get it to work.

The protoc compiles and successfully generates the swagger but the tags is not getting updated with the description set by the service tag. Here is OpenAPIServiceOption

I also checked unannotated_echo_service.swagger.yaml and could not find the corresponding service description in unannotated_echo_service.swagger.json (which im assuming is the generated swagger output of unannotated_echo_service.swagger.yaml)

However, in the a_bit_of_everything.proto where the annotations are in the proto file, it seems the tags for the service are properly generated in a_bit_of_everything.swagger.json

[kkolur]

I found this which may indicate that its still a TODO? https://github.com/grpc-ecosystem/grpc-gateway/blob/master/protoc-gen-openapiv2/options/openapiv2.proto#L96

[johanbrandhorst]

I think it is just the tags, as you say, not the entire service option. I have updated the title. Would you be interesting in helping implement this?

[johanbrandhorst]

See also: #2751

[numacci]

Hi @johanbrandhorst, can I try to work on this issue?

[johanbrandhorst]

Hi, yes, please feel free to start working on this, thank you!

[Rajarshi1998]

I would like to contribute to fix this issue. Thank you!!

[johanbrandhorst]

We have an open PR already: #2858. No need to start work on this.