unknown extension grpc.gateway.protoc_gen_openapiv2.options.openapiv2_schema

[vvayne676]

buf.yaml

build:
  excludes:
    - ./vendor
deps:
  - buf.build/googleapis/googleapis
  - buf.build/bufbuild/protovalidate
  - buf.build/grpc-ecosystem/grpc-gateway
breaking:
  use:
    - FILE
lint:
  use:
    - DEFAULT

buf.gen.yaml

managed:
  enabled: true
plugins:
  # generate go struct code
  - name: go
    out: "."
    # opt: paths=source_relative
  # generate grpc service code
  - name: go-grpc
    out: "."
    # opt: paths=source_relative
  - name: validate
    out: "."
    opt:
      # - paths=source_relative
      - lang=go
  - plugin: buf.build/grpc-ecosystem/openapiv2
    out: "swagger-ui"

robot.proto

package robot;
option go_package = "api/server/robot;robot";
import "buf/validate/validate.proto";
import "protoc-gen-openapiv2/options/openapiv2.proto";
message SimpleMessage {
  option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_schema) = {
    json_schema: {
      title: "SimpleMessage"
      description: "A simple message."
      required: [ "id" ]
    }
  };

  // Id represents the message identifier.
  string id = 1 [(grpc.gateway.protoc_gen_openapiv2.options.openapiv2_field) = {
    description: "The unique identifier of the simple message."
  }];
}

Hello
im trying to use buf to generate swagger json file. yet I have encountered this error
"""
unknown extension grpc.gateway.protoc_gen_openapiv2.options.openapiv2_schema
unknown extension grpc.gateway.protoc_gen_openapiv2.options.openapiv2_field
"""

Im confused what did I do wrong

[Timo Stamm]

The message option grpc.gateway.protoc_gen_openapiv2.options.openapiv2_schema is defined in the file protoc-gen-openapiv2/options/annotations.proto (see line 29 here), so you need to import this one, not protoc-gen-openapiv2/options/openapiv2.proto.

[vvayne676]

Hi timostamm, appreciate the quick response,I just started to use buf and proto recently, it did work.